Plant Anatomy and Physiology MCQs with Answers 2027

Q921

An increase in temperature results an increase in the rate of diffusion. This is because an increase in temperature causes

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Q922

Open question

In cold-requiring plants, the ripeness-to-flower stage is reached when

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Q923

Open question

Match List-I (part before fertilisation) with List-II (part after fertilisation) and select the correct answer:

List-I	List-II
a. Ovary	1. Paricarp of fruit
b. Ovary wall	2. Fruit
c. Ovule	3. Seed
d. Egg cell	4. Embryo

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Q924

Open question

Substrates that are highly oxidized, such as the acids of the Krebs cycle, will give respiratory quotient (RQ) values

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Q925

Open question

The middle and outer ranges of Himalayas are separated by

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Q926

Open question

According to which of the following hypotheses, the endergonic formation of ATP is accomplished via a coupling factor that transfers electron energy promoted by photosynthesis or respiration?

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Q927

Open question

The area where the net water movement is from the surface into the ground water systems is termed as

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Q928

Open question

Which of the following plants is an example whose growth and flowering is stimulated by fire in close proximity?

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Q929

Open question

In which of the following pelagic zones, darkness is virtually complete except for bioluminescence, and where temperature is low and pressure is great?

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Q930

Open question

The only palms of the Indus plain are

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Q931

Open question

Match List-I (Forest formations) with List-II (Areas) and select the correct answer:

List-I	List-II
a. Tropical moist deciduous	1. A belt from Kashmir to Assam and Burma
b. Tropical dry deciduous	2. Central India
c. Tropical dry evergreen	3. Central and northern Burma
d. Sub-tropical pine forest	4. On the coasts of Andhra and Chennai

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Q932

Open question

The structural unit that is employed in place of seed is called

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Q933

Open question

Which of the following diseases is easily recognisable by the presence of large knob-like sooty swellings or boils known as the smut galls or ball tumours?

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Q934

Open question

in Kreb's citric acid cycle, the initial acceptor of hydrogens released from succinate is

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Q935

Open question

Consider the following statements and choose the correct answer:
1. In angiosperms the pollination consists of transference of the pollen grains from the anther to the stigma either by self-pollination or by cross-pollination
2. Pollen grain is shed from the pollen sac in the two-celled stage
3. The exine of each microspore grows out into a tube, called the pollen tube
4. The growth of pollen tube is stimulated by sugary substances secreted by the stigma

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Q936

Open question

Consider the following statements and choose the correct answer:
1. Sexual reproduction is brought about by highly specialized antheridia and archegonia
2. An antheridium is a unicellular, short-stalked, club-shaped body
3. Funaria hygrometrica is a dioecious moss
4. The sex organs of Funaria are borne in clusters on the tips of the branches

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Q937

Open question

. . . . . . . . is the ability of a single cell to produce a fertile, adult individual.

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Q938

Open question

Which of the following ecosystems lack producers but contain only consumers and decomposers?

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Q939

Open question

Which of the following compounds are called as "freon" which are used as propellants in pressurized aerosol cans?

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Q940

Open question

During the synthesis of one molecule of glucose in green plants,

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