Plant Anatomy and Physiology MCQs with Answers 2027

Q321

The external appearance of the community which may be described on the basis of dominant plants, density, height, colour etc. of the plants is known as

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Q322

Open question

In which of the following a strip of definite width and of length suitable for studying vegetation is marked out and plotted, then plants occurring along the strip are recorded?

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Q323

Open question

Consider the following statements regarding the symptoms of loose smut of wheat and choose the correct answer:
1. The smutted ears from the boot leaves a little earlier than the healthy ones
2. All the ovaries and other floral parts including the awns and rachics are converted into masses of smut spores
3. The spores of each spikelet are covered by a thin greyish or silvery membrane
4. The ear is generally completely destroyed

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Q324

Open question

The most mobile mineral in the plant body is

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Q325

Open question

Which of the following plants is the alternate host of orange leaf rust?

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Q326

Open question

Which of the following layers of the pollen grain covers the whole grain?

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Q327

Open question

Consider the following statements.
1. The energy currency of cell is ATP (Adenocine Triphosphate).
2. Maximum amount of energy (ATP) is liberated on oxidation of fat.
3. Alcohol is a product of anaerobic respiration.
Which of the statement(s) given above is/are true ?

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Q328

Open question

In which of the following endemic types the taxa are supposed to have evolved only during the recent times and did not have sufficient time to extend their ranges of distribution?

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Q329

Open question

Consider the following statements and choose the correct answer:
1. Every species of animal and plant tends to produce more offspring than can survive within the normal range of the organism
2. There is a strong population pressure tending to force the individuals of each species to spread out and become established in new territories
3. The spread of a species is prevented by highways, such as land connections between continents
4. The spread of species is facilitated by geographical barriers, such as oceans, mountains, deserts and large rivers

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Q330

Open question

Plasticity in plant growth means that

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Q331

Open question

Sugarcane plants are usually propagated by vegetative means because

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Q332

Open question

According to Hill, isolated chloroplasts in the presence of light, water, and a suitable hydrogen acceptor

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Q333

Open question

Consider the following statements and choose the correct answer:
1. Soil gets heat energy from different sources such as solar radiation, decomposing organic matter and heat formed in the interior of earth
2. The temperature of soil is not affected by its colour and altitude of the land
3. Black soils absorb more heat than white soils
4. Sandy soils absorb more heat and radiate it out quickly at night than clay or loam soils

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Q334

Open question

The types of dissolution that may cause abscission include:

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Q335

Open question

The organic matter in the soil derived from the decay of the dead remains of plants and animal parts is known as

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Q336

Open question

The number of moles of substrate converted per minute by 1 mole of enzyme is called the

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Q337

Open question

Which of the following pairs of plant disease - microorganism is correct?
1. Citrus canker - Virus
2. Rust of wheat - Fungi

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Q338

Open question

Quantum migration occurs preferentially from

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Q339

Open question

Which of the following is the area of the root where most wate absorption takes place?

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Q340

Open question

Which of the following is an example of long day plant?

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Plant Anatomy and Physiologypractice.

Plant Anatomy and Physiology
practice.