Given below are two statements:
Statement I : The forces generated by transpiration can lift a xylem-sized column of water over 130 meters height.
Statement II : Transpiration cools leaf surfaces sometimes 10 to 15 degrees, by evaporative cooling.
In the light of the above statements, choose the most appropriate answer from the options given below:

(1). Both Statement I and Statement II are incorrect.
(2). Statement I is correct but Statement II is incorrect.
(3). Statement I is incorrect but Statemnent II is correct.
(4). Both Statement I and Statement II are correct.

Number of Attempts: 03

Correct Attempts: 01

Time Taken: 00:15

Average Time: 00:05

Identify the correct statements:
A. Lenticels are the lens-shaped openings permitting the exchange of gases.
B. Bark formed early in the season is called hard bark.
C. Bark is a technical term that refers to all tissues exterior to vascular cambium.
D. Bark refers to periderm and secondary phloem.
E. Phellogen is single-layered in thickness.
Choose the correct answer fromn the options given below:

(1). A and D only
(2). A, B and D only
(3). B and C only
(4). B, C and E only

Number of Attempts: 03

Correct Attempts: 01

Time Taken: 00:15

Average Time: 00:05

Match List I with List II.

Choose the correct answer from the options given below:

(1). A-II, B-I,C-III, D-IV
(2). A-III, B-I, C-IV, D-II
(3). A-II, B-IV, C-I, D-III
(4). A-IV, B-III, C-II, D-I

Number of Attempts: 03

Correct Attempts: 01

Time Taken: 00:15

Average Time: 00:05

Which one of the following will accelerate phosphorus cycle?

(1). Burning of fossil fuels
(2). Volcanic activity
(3). Weathering of rocks
(4). Rainfall and stormssEiCrill

Number of Attempts: 03

Correct Attempts: 01

Time Taken: 00:15

Average Time: 00:05

The device which can remove particulate matter present in the exhaust from a thermal power plant is:

(1). STP
(2). Incinerator
(3). Electrostatic Precipitator
(4). Catalytic Convertor

Number of Attempts: 03

Correct Attempts: 01

Time Taken: 00:15

Average Time: 00:05

Read the following statements about the vascular bundles
(a) In roots, xylem and phloem in a vascular bundle are arranged in an alternate manner along the different radii.
(b) Conjoint closed vascular bundles do not possess cambium.
(c) In open vascular bundles, cambiumn is present in between xylem and phloem.
(d) The vascular bundles of dicotyledonous stem possess endarch protoxylem.
(e) In monocotyledonous root, usually there are more than six xylem bundles present.
Choose the correct answer from the options given below:

(1). (a), (b) and (d) only
(2). (b), (c), (d) and (e) only
(3). (a), (b), (c) and (d) only
(4). (a), (c), (d) and (e) only

Number of Attempts: 03

Correct Attempts: 01

Time Taken: 00:15

Average Time: 00:05

Match List -I with List - II.



(1). (a) - (ii), (b) - (iv), (c) - (i), (d) - (iii)
(2). (a) - (iii), (b) - (iii), (c) - (ii), (d) - (i)
(3). (a) -(iii), (b) - (i), (c) - (iv), (d) - (ii)
(4). (a) - (ii), (b) - (i), (c) - (iv), (d) - (iii)

Number of Attempts: 03

Correct Attempts: 01

Time Taken: 00:15

Average Time: 00:05

The organelles that are included in the endomembrane system are:

(1). Endoplasmic reticulum, Mitochondria, Ribosomes and Lysosomes
(2). Endoplasmic reticulum, Golgi complex, Lysosomes and Vacuoles
(3). Golgi complex, Mitochondria, Ribosomes and Lysosomes
(4). Golgi complex, Endoplasmic reticulum, Mitochondria and Lysosomes

Number of Attempts: 03

Correct Attempts: 01

Time Taken: 00:15

Average Time: 00:05

Which of the following characteristics is incorrect with respect to cockroaches?

(1). A ring of gastric caeca is present at the junction of midgut and hindgut.
(2). Hypopharynx lies within the cavity enclosed by the mouth parts.
(3). In females, 7th - 9th sterna together form a genital pouch.
(4). 10th abdominal segment in both sexes, bears a pair of anal cerci.

Number of Attempts: 03

Correct Attempts: 01

Time Taken: 00:15

Average Time: 00:05

The enzyme enterokinase helps in conversion of:

(1). trypsinogen into trypsin
(2). caseinogen into casein
(3). pepsinogen into pepsin
(4). protein into polypeptides

Number of Attempts: 03

Correct Attempts: 01

Time Taken: 00:15

Average Time: 00:05

Identify the correct statement with reference to human digestive system.

(1). Serosa is the innermost layer of the alimentary Canal.
(2). lleum is a highly coiled part.
(3). Vermiform appendix arises from duodenum.
(4). lleum opens into small intestine.

Number of Attempts: 03

Correct Attempts: 01

Time Taken: 00:15

Average Time: 00:05

Select the incorrect statement

(1). Inbreeding is essential to evolve purelines in any animal.
(2). Inbreeding selects harmful recessive genes that reduce fertility and productivity.
(3). Inbreeding helps in accumulation of superior genes and elimination of undesirable genes.
(4). Inbreeding increases homozygosity.

Number of Attempts: 03

Correct Attempts: 01

Time Taken: 00:15

Average Time: 00:05

Identify the cells whose secretion protects the lining of gastro-intestinal tract from various enzymes.

(1). Goblet cells
(2). Oxyntic cells
(3). Duodenal cells
(4). Chief cells

Number of Attempts: 03

Correct Attempts: 01

Time Taken: 00:15

Average Time: 00:05

Which of the following pairs of gases is mainly responsible for green house effect ?

(1). Oxygen and Nitrogen
(2). Nitrogen and Sulphur dioxide
(3). Carbon dioxide and Methane
(4). Ozone and Ammonia

Number of Attempts: 03

Correct Attempts: 01

Time Taken: 00:15

Average Time: 00:05

Match the following structures with their respective location in organs:

Select the correct option .

(1). (a) - (ii), (b) - (iv), (c) - (i), (d) - (iii)
(2). (a) - (iii), (b) - (iv), (c) - (i), (d) - (ii)
(3). (a) - (iii), (b) - (ii), (c) - (i), (d) - (iv)
(4). (a) - (iii), (b) - (i), (c) - (ii), (d) - (iv)

Number of Attempts: 03

Correct Attempts: 01

Time Taken: 00:15

Average Time: 00:05

Stomatal movement is not affected by

(1). CO₂ concentration.
(2). O₂ concentration.
(3). light.
(4). temperature.

Number of Attempts: 03

Correct Attempts: 01

Time Taken: 00:15

Average Time: 00:05

Which of the following elements is responsible for maintaining turgor in cells ?

(1). Calcium
(2). Potassium
(3). Sodium
(4). Magnesium

Number of Attempts: 03

Correct Attempts: 01

Time Taken: 00:15

Average Time: 00:05

According to Hugo de Vries, the mechanism of evolution is

(1). minor mutations.
(2). phenotypic variations.
(3). saltation.
(4). multiple step mutations.

Number of Attempts: 03

Correct Attempts: 01

Time Taken: 00:15

Average Time: 00:05

Which of the following options best represents the enzyme composition of pancreatic juice ?

(1). Lipase, amylase, trypsinogen, procarboxy-peptidase
(2). Amylase, peptidase, trypsinogen, rennin
(3). Amylase, pepsin, trypsinogen, maltase
(4). Peptidase, amylase, pepsin, rennin

Number of Attempts: 03

Correct Attempts: 01

Time Taken: 00:15

Average Time: 00:05

A baby boy aged two years is admitted to play school and passes through a dental check - up. The dentist observed that the boy had twenty teeth. Which teeth were absent ?

(1). Molars
(2). Incisors
(3). Canines
(4). Premolars

Number of Attempts: 03

Correct Attempts: 01

Time Taken: 00:15

Average Time: 00:05

Depletion of which gas in the atmosphere can lead to an increased incidence of skin cancers

(1). ozone
(2). ammonia
(3). methane
(4). nitrous oxide

Number of Attempts: 03

Correct Attempts: 01

Time Taken: 00:15

Average Time: 00:05

In the stomach, gastric acid is secreted by the

(1). parietal cells
(2). peptic cells
(3). acidic cells
(4). gastrin secreting cells

Number of Attempts: 03

Correct Attempts: 01

Time Taken: 00:15

Average Time: 00:05

The thickness of ozone in a column of air in theatmosphere is measured in terms of :

(1). Decibels
(2). Decameter
(3). Kilobase
(4). Dobson units

Number of Attempts: 03

Correct Attempts: 01

Time Taken: 00:15

Average Time: 00:05

In tissue culture experiments, leaf mesophyll cells are put in a culture medium to form callus. This phenomenon may be called as:

(1). Dedifferentiation
(2). Development
(3). Senescence
(4). Differentiation

Number of Attempts: 03

Correct Attempts: 01

Time Taken: 00:15

Average Time: 00:05

Given below are two statements :
Statement I : Endarch and exarch are the terms often used for describing the position of secondary xylem in the plant body.
Statement II : Exarch condition is the most common feature of the root system.
In the light of the above statements, choose the correct answer from the options given below:

(1). Both Statement I and Statement II are false.
(2). Statement I is correct but Statement II is false.
(3). Statement I is incorrect but Statement II is true.
(4). Both Statement I and Statement II are true.

Number of Attempts: 03

Correct Attempts: 01

Time Taken: 00:15

Average Time: 00:05

Match List I with List II:

Choose the correct answer from the options given below:

(1). A-IV, B-III, C-II, D-I
(2). A-III, B-I, C-IV, D-II
(3). A-IL, B-I, C-IV, D-III
(4). A-II, B-IV, C-I, D-III

Number of Attempts: 03

Correct Attempts: 01

Time Taken: 00:15

Average Time: 00:05

Which one of the following statements is NOT correct?

(1). Algal blooms caused by excess of organic matter in water improve water quality and promote fisheries.
(2). Water hyacinth grows abundantly in eutrophic water bodies and leads to an imbalance in the ecosystem dynamics of the water body.
(3). The amount of some toxic substances of industrial waste water increases in the organisms at successive trophic levels.
(4). The micro-organisms involved in biodegradation of organic matter in a sewage polluted water body consume a lot of oxygen causing the death of aquatic organisms.

Number of Attempts: 03

Correct Attempts: 01

Time Taken: 00:15

Average Time: 00:05

Which of the following statements is correct ?

(1). Biomagnification refers to increáse in concentration of the toxicant at successive trophic levels.
(2). Presence of large amount of nutrients in water restricts 'Alagal Bloom'.
(3). Algal Bloom decreases fish mortality.
(4). Eutrophication refers to increase in domestic sewage and waste water in lakes.

Number of Attempts: 03

Correct Attempts: 01

Time Taken: 00:15

Average Time: 00:05

Once the undigested and unabsorbed substances enter the caecum, their backflow is prevented by:

(1). Ileo - caecal valve
(2). Gastro - oesophageal sphincter
(3). Pyloric sphincter
(4). Sphincter of Oddi

Number of Attempts: 03

Correct Attempts: 01

Time Taken: 00:15

Average Time: 00:05

Given below are two statements:
Statement I : Electrostatic precipitator is most widely used in thermal power plant.
Statemnent II : Electrostatic precipitator in thermal power plant removes ionising radiations.
In the light of the above statements, choose the most appropriate answer from the options given below :

(1). Both Statement I and Statement II are incorrect.
(2). Statement I is correct but Statement II is incorrect.
(3). Statement I incorrect but Statement II is correct.
(4). Both Statement I and Statement II are correct.

Number of Attempts: 03

Correct Attempts: 01

Time Taken: 00:15

Average Time: 00:05

Which one of the following is NOT an advantage of inbreeding?

(1). It exposes harmful recessive genes that are eliminated by selection.
(2). Elimination of less desirable genes and accumulation of superior genes takes place due to it.
(3). It decreases the productivity of inbred population, after continuous inbreeding.
(4). It decreases homozygosity.

Number of Attempts: 03

Correct Attempts: 01

Time Taken: 00:15

Average Time: 00:05

Which one of the following produces nitrogen fixing nodules on the roots of Alnus?

(1). Rhizobium
(2). Frankia
(3). Rhodospirillum
(4). Beijerinckia

Number of Attempts: 03

Correct Attempts: 01

Time Taken: 00:15

Average Time: 00:05

"Girdling Experiment" was performed by plant physiologists to identify the plant tissue through which:

(1). Water is transported
(2). Food is transported
(3). For both water and food transportation
(4). Osmosis is observed

Number of Attempts: 03

Correct Attempts: 01

Time Taken: 00:15

Average Time: 00:05

Addition of more solutes in a given solution will:

(1). Raise its water potential
(2). Lower its water potential
(3). Make its water potential zero
(4). Not affect the water potential at all

Number of Attempts: 03

Correct Attempts: 01

Time Taken: 00:15

Average Time: 00:05

The entire fleet of buses in Delhi were converted to CNG from diesel. In reference to this, which one of the following statements is false?

(1). CNG burns more efficiently than diesel
(2). The same diesel engine is used in CNG buses making the cost of conversion low
(3). It is cheaper than diesel
(4). It cannot be adulterated like diesel

Number of Attempts: 03

Correct Attempts: 01

Time Taken: 00:15

Average Time: 00:05

The anatomy of springwood shows some peculiar features. Identify the correct set of statements about springwood.
(a) It is also called early wood.
(b) In the spring season cambium produces xylem elements with narrow vessels.
(c) It is lighter in colour.
(d) The springwood along with autumnwood shows alternate concentric rings forming annual rings.
(e) It has lower density.
Choose the correct answer from the options given below:

(1). (a), (b), (d) and (e) only
(2). (a), (c), (d) and (e) only
(3). (a), (b), and (d) only
(4). (c), (d) and (e) only

Number of Attempts: 03

Correct Attempts: 01

Time Taken: 00:15

Average Time: 00:05

Given below are two statements:
Statement I : Fatty acids and glycerols cannot be absorbed into blood.
Statemnent II : Specialized lymphatic capillaries called lacteals carry chylomicrons into lymphatic vessels and ultimately into the blood.
In the light of the above statements, choose the most appropriate answer from the options given below :

(1). Both statement I and Statement II are correct
(2). Both statement I and statenent II are incorrect
(3). Statement I is correct but statement II is incorrect
(4). Statement I is incorrect but statement I is correct

Number of Attempts: 03

Correct Attempts: 01

Time Taken: 00:15

Average Time: 00:05

Tegmina in cockroach arises from

(1). Prothorax
(2). Mesothorax
(3). Metathorax
(4). Prothorax and Mesothorax

Number of Attempts: 03

Correct Attempts: 01

Time Taken: 00:15

Average Time: 00:05

Identify the asexual reproductive structure associated with Penicillium:

(1). Zoospores
(2). Conidiao
(3). Gemmules
(4). Buds

Number of Attempts: 03

Correct Attempts: 01

Time Taken: 00:15

Average Time: 00:05

Breeding crops with higher levels of vitamins and minerals or higher proteins and healthier fats is called:

(1). Biomagnification
(2). Bioremediation
(3). Biofortification
(4). Bioaccumulation

Number of Attempts: 03

Correct Attempts: 01

Time Taken: 00:15

Average Time: 00:05

Which of the following functions is not performed by secretions from salivary glands?

(1). Control bacterial population in mouth
(2). Digestion of complex carbohydrates
(3). Lubrication of oral cavity
(4). Digestion of disaccharides

Number of Attempts: 03

Correct Attempts: 01

Time Taken: 00:15

Average Time: 00:05

Given below are two statements:
Statenent I : In a scrubber, exhaust from the thermal plant is passed through the electric wires to charge the dust particles.
Statement II : Particular matter (PM 2.5) can not be removed by scrubber but can be removed by an electrostatic precipitator.lotze1.
In the light of the above statements, choose the most appropriate answer from the options given below:

(1). Both Statement I and Statement II are correct
(2). Both Statement I and Statement II are incorrect
(3). Statement I is correct but Statement II is incorrect
(4). Statement I is incorrect but Statement II is correct

Number of Attempts: 03

Correct Attempts: 01

Time Taken: 00:15

Average Time: 00:05

Which of the following is not observed during anapoplastic pathway?

(1). Movement of water occurs throughintercellular spaces and wall of the cells
(2). The movement does not involve crossing of cellmembrane
(3). The movement is aided by cytoplasmicstreaming
(4). Apoplast is continuous and does not provide anybarrier to water movement

Number of Attempts: 03

Correct Attempts: 01

Time Taken: 00:15

Average Time: 00:05

In old trees the greater part of secondary xylem is dark brown and resistant to insect attack due to:
(a) Secretion of secondary metabolites and their deposition in the lumen of vessels.
(b) Deposition of organic cómpounds like tannins and resins in the central layers of the stem.
(c) Deposition of suberin and aromatic substances in the outer layer of the stem.
(d) Deposition of tannins, gum, resin and aromatic substances in the peripheral layers of the stem.
(e) Presence of parenchyma cells, functionally active xylem elements and essential oils.
Choose the correct answer from the options given below:

(1). (a) and (b) only
(2). (c) and (d) only
(3). (d) and (e) only
(4). (b) and (d) only

Number of Attempts: 03

Correct Attempts: 01

Time Taken: 00:15

Average Time: 00:05

Which one of the following never occurs during mitotic cell division?

(1). Spindle fibres attach to kinetochores of chromosomes
(2). Movement of centrioles towards opposite poles
(3). Pairing of homologous chromosomes
(4). Coiling and condensation of the chromatids

Number of Attempts: 03

Correct Attempts: 01

Time Taken: 00:15

Average Time: 00:05

Which of the following is not a step in Multiple Ovulation Embryo Transfer Technology (MOET)?

(1). Cow is administered hormone having LH Iike activity for superovulation
(2). Cow yields about 6 - 8 eggs at a time
(3). Cow is fertilized by artificial insemination
(4). Fertilized eggs are transferred to surrogate mothers at 8–32 cell stage

Number of Attempts: 03

Correct Attempts: 01

Time Taken: 00:15

Average Time: 00:05

Match List-I with List-II.

Choose the correct answer from the options given below.

(1). (a) - (i), (b) - (iii), (c) - (ii), (d) - (iv)
(2). (a) - (ii), (b) - (iii), (c) - (i), (d) - (iv)
(3). (a) - (iii), (b) - (iv), (c) - (i), (d) - (ii)
(4). (a) - (iv), (b) - (iii), (c) -(ii),  (d) - (i)

Number of Attempts: 03

Correct Attempts: 01

Time Taken: 00:15

Average Time: 00:05

Mutations in plant cells can be induced by:

(1). Kinetin
(2). Infrared rays
(3). Gamma rays
(4). Zeatin

Number of Attempts: 03

Correct Attempts: 01

Time Taken: 00:15

Average Time: 00:05

Which of the following are not secondary metabolites in plants?

(1). Morphine, codeine
(2). Amino acids, glucose
(3). Vinblastin, curcumin
(4). Rubber, gums

Number of Attempts: 03

Correct Attempts: 01

Time Taken: 00:15

Average Time: 00:05

Match Column -I with Column - II

Choose the correct answer from options given below:

(1). (a) - (ii), (b) - (iv), (c) - (i), (d) - (iii)
(2). (a) - (i), (b) - (ii), (c) - (iii), (d) - (iv)
(3). (a) - (iii), (b) - (i), (c) - (iv), (d) - (ii)
(4). (a) - (iv), (b) - (iii), (c) - (ii), (d) - (i)

Number of Attempts: 03

Correct Attempts: 01

Time Taken: 00:15

Average Time: 00:05

Sphincter of oddi is present at:

(1). Ileo-caecal junction
(2). Junction of hepato-pancreatic duct and duodenum
(3). Gastro-oesophageal junction
(4). Junction of jejunum and duodenum

Number of Attempts: 03

Correct Attempts: 01

Time Taken: 00:15

Average Time: 00:05

Dobson units are used to measure thickness of:

(1). CFCs
(2). Stratosphere
(3). Ozone
(4). Troposphere

Number of Attempts: 03

Correct Attempts: 01

Time Taken: 00:15

Average Time: 00:05

Succus entericus is referred to as:

(1). Pancreatic juice
(2). Intestinal juice
(3). Gastric juice
(4). Chyme

Number of Attempts: 03

Correct Attempts: 01

Time Taken: 00:15

Average Time: 00:05

Identify the incorrect pair.

(1). Alkaloids - Codeine
(2). Toxin - Abrin
(3). Lectins - Concanavalin A
(4). Drugs - Ricin

Number of Attempts: 03

Correct Attempts: 01

Time Taken: 00:15

Average Time: 00:05

Which of the following is put into Anaerobic sludge digester for further sewage treatment ?

(1). Floating debris
(2). Effluents of primary treatment
(3). Activated sludge
(4). Primary sludge

Number of Attempts: 03

Correct Attempts: 01

Time Taken: 00:15

Average Time: 00:05

Montreal protocol was signed in 1987 for control of:

(1). Emission of ozone depleting substances
(2). Release of Green House gases
(3). Disposal of e-wastes
(4). Transport of Genetically modified organisms from one country to another

Number of Attempts: 03

Correct Attempts: 01

Time Taken: 00:15

Average Time: 00:05

Snow-blindness in Antarctic region is due to:

(1). Inflammation of cornea due to high dose of UV-B radiation
(2). High reflection of light from snow
(3). Damage to retina caused by infra-red rays
(4). Freezing of fluids in the eye by low temperature

Number of Attempts: 03

Correct Attempts: 01

Time Taken: 00:15

Average Time: 00:05

By which method was a new breed 'Hisardale of sheep formed by using Bikaneri ewes and Marino rams ?

(1). Mutational breedingil ol
(2). Cross breeding
(3). Inbreeding
(4). Out crossing

Number of Attempts: 03

Correct Attempts: 01

Time Taken: 00:15

Average Time: 00:05

Match the following concerning essential elementsand their functions in plants:


(1). (a) - (iv), (b) - (iii), (c) - (ii), (d) - (i)
(2). (a) - (iii), (b) - (iv), (c) - (ii), (d) - (i)
(3). (a) - (iv), (b) - (i), (c) - (ii), (d) - (iii)
(4). (a) - (ii), (b) - (i), (c) - (iv), (d) - (iii)

Number of Attempts: 03

Correct Attempts: 01

Time Taken: 00:15

Average Time: 00:05

The process responsible for facilitating loss of water in liquid form from the tip of grass blades at night and in early morning is

(1). Root pressure
(2). Imbibition
(3). Plasmolysis
(4). Transpiration

Number of Attempts: 03

Correct Attempts: 01

Time Taken: 00:15

Average Time: 00:05

Paper chromatography is an example of:

(1). Partition chromatography
(2). Thin layer chromatography
(3). Column chromatography
(4). Adsorption chromatography

Number of Attempts: 03

Correct Attempts: 01

Time Taken: 00:15

Average Time: 00:05

Grass leaves curl inwards during every dry weather. Select the most appropriate reason from the following

(1). Flaccidity of bulliform cells
(2). Shrinkage of air spaces in spongy mesophyll
(3). Tyloses in vessels
(4). Closure of stomata

Number of Attempts: 03

Correct Attempts: 01

Time Taken: 00:15

Average Time: 00:05

Polyblend, a fine powder of recycled modified plastic, has proved to be a good material for

(1). use as a fertilizer.
(2). construction of roads.
(3). making tubes and pipes.
(4). making plastic sacks.

Number of Attempts: 03

Correct Attempts: 01

Time Taken: 00:15

Average Time: 00:05

Select the correct option.

(1). 11th and 12th pairs of ribs are connected to the sternum with the help of hyaline cartilage.
(2). Each rib is a flat thin bone and all the ribs are connected dorsally to the thoracic vertebrae and ventrally to the sternum.
(3). There are seven pairs of vertebrosternal, three pairs of vertebrochondral and two pairs of vertebral ribs.
(4). 8th, 9th and 10th pairs of ribs articulate directly with the sternum.

Number of Attempts: 03

Correct Attempts: 01

Time Taken: 00:15

Average Time: 00:05

Which of the following statements is correct ?

(1). Cornea consists of dense connective tissue of elastin and can repair itself.
(2). Cornea is convex, transparent layer which is highly vascularised.
(3). Cornea consists of dense matrix of collagen and is the most sensitive portion of the eye.
(4). Cornea is an external, transparent and protective proteinacious covering of the eye-ball.

Number of Attempts: 03

Correct Attempts: 01

Time Taken: 00:15

Average Time: 00:05

What is the direction of movement of sugars in phloem ?

(1). Upward
(2). Downward
(3). Bi-directional
(4). Non-multidirectional

Number of Attempts: 03

Correct Attempts: 01

Time Taken: 00:15

Average Time: 00:05

Which of these following methods is the most suitable for disposal of nuclear waste ?

(1). Bury the waste under Antarctic ice-cover.
(2). (Dump the waste within rocks under deep ocean.
(3). (Bury the waste within rocks deep below the Earth's surface. .
(4). Shoot the waste into space

Number of Attempts: 03

Correct Attempts: 01

Time Taken: 00:15

Average Time: 00:05

Xylem translocates

(1). water and mineral salts only .
(2). water , mineral salts and some organic nitrogen only .
(3). water , mineral salts , some organic nitrogen and hormones .
(4). water only

Number of Attempts: 03

Correct Attempts: 01

Time Taken: 00:15

Average Time: 00:05

Which of the following protocols did aim for reducing emission of chlorofluorocarbons into the atmosphere ?

(1). Kyoto Protocol
(2). Gothenburg Protocol
(3). Geneva Protocol
(4). Montreal Protocol

Number of Attempts: 03

Correct Attempts: 01

Time Taken: 00:15

Average Time: 00:05

Which of the following is a secondary pollutant ?

(1). O₃
(2). SO₂
(3). CO₂
(4). CO

Number of Attempts: 03

Correct Attempts: 01

Time Taken: 00:15

Average Time: 00:05

In stratosphere, which of the following elements acts as a catalyst in degradation of ozone and release of molecular oxygen ?

(1). O
(2). Fe
(3). Cl
(4). C

Number of Attempts: 03

Correct Attempts: 01

Time Taken: 00:15

Average Time: 00:05

World Ozone Day is celebrated on

(1). 22nd April
(2). 16th September
(3). 21st April
(4). 5th June

Number of Attempts: 03

Correct Attempts: 01

Time Taken: 00:15

Average Time: 00:05

In which of the following forms is iron absorbed by plants?

(1). Both ferric and ferrous
(2). Free element
(3). Ferrous
(4). Ferric

Number of Attempts: 03

Correct Attempts: 01

Time Taken: 00:15

Average Time: 00:05

Which of the following terms describe human dentition?

(1). Pleurodont, Diphyodont, Heterodont
(2). Pleurodont, Monophyodont, Homodont
(3). Thecodont, Diphyodont, Heterodont
(4). Thecodont, Diphyodont, Homodont

Number of Attempts: 03

Correct Attempts: 01

Time Taken: 00:15

Average Time: 00:05

Match the items given in Column I with those in Column II and select the correct option given below :


(1). (a) - (i), (b) - (ii), (c) - (iv), (d) - (iii)
(2). (a) - (iii), (b) - (iv), (c) - (i), (d) - (ii)
(3). (a) - (i), (b) - (iii), (c) - (iv), (d) - (ii)
(4). (a) - (ii), (b) - (i), (c) - (iii), (d) - (iv)

Number of Attempts: 03

Correct Attempts: 01

Time Taken: 00:15

Average Time: 00:05

Which of the following gastric cells indirectly help in erythropoiesis?

(1). Parietal cells
(2). Goblet cells
(3). Mucous cells
(4). Chief cells

Number of Attempts: 03

Correct Attempts: 01

Time Taken: 00:15

Average Time: 00:05

Homozygous pure lines in cattle can be obtained by

(1). mating of individuals of different species.
(2). mating of related individuals of same breed.
(3). mating of unrelated individuals of same breed.
(4). mating of individuals of different breed.

Number of Attempts: 03

Correct Attempts: 01

Time Taken: 00:15

Average Time: 00:05

The hepatic portal vein drains blood to liver from

(1). intestine.
(2). heart.
(3). stomach.
(4). kidneys.

Number of Attempts: 03

Correct Attempts: 01

Time Taken: 00:15

Average Time: 00:05

The water potential of pure water is

(1). more than one .
(2). zero .
(3). less than zero .
(4). more than zero but less than one .

Number of Attempts: 03

Correct Attempts: 01

Time Taken: 00:15

Average Time: 00:05

Which one of the following statements is not valid for aerosols ?

(1). They have negative impact on agricultural land .
(2). They are harmful to human health .
(3). They alter rainfall and monsoon patterns .
(4). They cause increased agricultural productivity .

Number of Attempts: 03

Correct Attempts: 01

Time Taken: 00:15

Average Time: 00:05

Which of the following in sewage treatment removes suspended solids ?

(1). Sludge treatment
(2). Tertiary treatment
(3). Secondary treatment
(4). Primary treatment

Number of Attempts: 03

Correct Attempts: 01

Time Taken: 00:15

Average Time: 00:05

In which of the following, all the three are macronutrients ?

(1). Iron, copper, molybdenum
(2). Molybdenum, magnesium, manganese
(3). Nitrogen, magnesium, phosphorus
(4). Boron, zinc, manganese

Number of Attempts: 03

Correct Attempts: 01

Time Taken: 00:15

Average Time: 00:05

Water vapour comes out from the plant leaf through the stomatal opening. Through the same stomatal opening carbon dioxide diffuses into the plant during photosynthesis. Reason out the above statements using the following options.

(1). Both processes can happen together because the diffusion coefficient of water and CO₂ is different
(2). The above processes happen only during night time
(3). One process occurs during day time and the other at night
(4). Both processes cannot happen simultaneously

Number of Attempts: 03

Correct Attempts: 01

Time Taken: 00:15

Average Time: 00:05

Which of the following guards the opening of hepatopancreatic duct into the duodenum ?

(1). Ileocaecal valve
(2). Pyloric sphincter
(3). Sphincter of Oddi
(4). Semilunar valve

Number of Attempts: 03

Correct Attempts: 01

Time Taken: 00:15

Average Time: 00:05

Joint Forest Management Concept was introduced in India during

(1). 1970s
(2). 1980s
(3). 1990s
(4). 1960s

Number of Attempts: 03

Correct Attempts: 01

Time Taken: 00:15

Average Time: 00:05

Which of the following structures is homologous to the wing of a bird ?

(1). Wing of a moth
(2). Hind limb of rabbit
(3). Flipper of whale
(4). Dorsal fin of a shark

Number of Attempts: 03

Correct Attempts: 01

Time Taken: 00:15

Average Time: 00:05

Which part of the tobacco plant is infected by Meloidogyne incognita ?

(1). Leaf
(2). Stem
(3). Root
(4). Flower

Number of Attempts: 03

Correct Attempts: 01

Time Taken: 00:15

Average Time: 00:05

A river with an inflow of domestic sewage rich in organic waste may result in

(1). increased population of aquatic food web organisms
(2). an increased production of fish due to biodegradable nutrients
(3). death of fish due to lack of oxygen
(4). drying of the river very soon due to algal bloom

Number of Attempts: 03

Correct Attempts: 01

Time Taken: 00:15

Average Time: 00:05

Following are the two statements regarding the origin of life
I. The earliest organisms that appeared on the earth were non-green and presumably anaerobes
II. The first autotrophic organisms were the chemoautotrophs that never released oxygen
Of the above statements which one of the following options is correct ?

(1). II is correct but I is false
(2). Both I and II are correct
(3). Both I and II are false.
(4). I is correct but II is false

Number of Attempts: 03

Correct Attempts: 01

Time Taken: 00:15

Average Time: 00:05