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Questions Available: 89
Year: 2023
Topic: Biology-Out Of Syllabus
1.
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:
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:
Solution
Year: 2023
Topic: Biology-Out Of Syllabus
2.
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:
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:
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Year: 2022
Topic: Biology-Out Of Syllabus
6.
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:
(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:
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Year: 2023
Topic: Biology-Out Of Syllabus
25.
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:
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:
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Year: 2023
Topic: Biology-Out Of Syllabus
30.
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 :
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 :
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Year: 2022
Topic: Biology-Out Of Syllabus
36.
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:
(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:
Solution
Year: 2022
Topic: Biology-Out Of Syllabus
37.
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 :
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 :
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Year: 2022
Topic: Biology-Out Of Syllabus
42.
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:
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:
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Year: 2022
Topic: Biology-Out Of Syllabus
44.
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:
(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:
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Year: 2016
Topic: Biology-Out Of Syllabus
89.
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 ?
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 ?




