Match the plant hormones in Column I with their primary function in Column II. Column I Column II P. Abscisic acid i. Promotes disease resistance Q. Ethylene ii. Maintains seed dormancy R. Cytokinin iii. Promotes seed germination S. Gibberellins iv. Promotes fruit ripening v. Inhibits leaf senescence Choose the correct combination:

P - ii , Q - iv , R - v , S - iii

P - iii , Q - iv , R - i , S - ii

P - v , Q - iii , R - ii , S - i

P - iv , Q - ii , R - iii , S - v

EASY

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Important Questions on Plant Growth and Development

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Biology>Plant Physiology>Plant Growth and Development>Plant Growth

When a plant species is grown in shade tends to produce thinner leaves with more surface area, and when grown under abundant sunlight starts producing thicker leaves with reduced surface area. This phenomenon is an example of

EASY

Biology>Plant Physiology>Plant Growth and Development>Plant Growth

In the following diagrammatic representation showing stages of embryonic development, identify the type of growth phase labelled as $M$ and $N$ :

Question Image

HARD

Biology>Plant Physiology>Plant Growth and Development>Plant Growth

Within the exponential phase of growth, if the initial surface area and the growth rate of a leaf are

10 {mm}^{2}

and

0.015 {mm}^{2} / hour

respectively, the area of the leaf after

4

days would range from

EASY

Biology>Plant Physiology>Plant Growth and Development>Plant Growth

The orientation to light of a non-motile organism or part of its body is called:

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Biology>Plant Physiology>Plant Growth and Development>Plant Growth

Which among the following is not dedifferentiated?

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Biology>Plant Physiology>Plant Growth and Development>Plant Growth

Plants follow different pathways in response to environment or phases of life to form different kinds of structures. This ability is called:

EASY

Biology>Plant Physiology>Plant Growth and Development>Plant Growth

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

HARD

Biology>Plant Physiology>Plant Growth and Development>Plant Growth

Choose the correct statements.
(A) Assyrians recorded information of crop plants in the picture form.
(B) Nehemiah Grew studied the anatomy of plant tissue.
(C) Bouskein refers to cattle.
(D) Application of physical and chemical principles developed new branches of Botany like genetics.

EASY

Biology>Plant Physiology>Plant Growth and Development>Plant Growth

Identify the exponential growth expression among the following.

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Biology>Plant Physiology>Plant Growth and Development>Plant Growth

Formation of interfascicular cambium and cork cambium from parenchyma is phenomenon of

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Biology>Plant Physiology>Plant Growth and Development>Plant Growth

Which one of the following plants does not show plasticity?

EASY

Biology>Plant Physiology>Plant Growth and Development>Plant Growth

Typical growth curve in plants is:

MEDIUM

Biology>Plant Physiology>Plant Growth and Development>Plant Growth

Match the plant hormones in Column I with their primary function in Column II.

Column I	Column II
P. Abscisic acid	i. Promotes disease resistance
Q. Ethylene	ii. Maintains seed dormancy
R. Cytokinin	iii. Promotes seed germination
S. Gibberellins	iv. Promotes fruit ripening
	v. Inhibits leaf senescence

Choose the correct combination:

EASY

Biology>Plant Physiology>Plant Growth and Development>Plant Growth

Name for the given phenomena events that occur during the growth of the plant

A)

Production of tissues in woody dicotyledonous plants to perform specific function

B)

Heterophylly at different stages of growth

C)

Formation of meristems from parenchyma cells

EASY

Biology>Plant Physiology>Plant Growth and Development>Plant Growth

The process of growth is maximum during

HARD

Biology>Plant Physiology>Plant Growth and Development>Plant Growth

Write the types of induced plant movements by an external and directional stimulus with example.

HARD

Biology>Plant Physiology>Plant Growth and Development>Plant Growth

Explain different phases of growth with the help of diagram.

EASY

Biology>Plant Physiology>Plant Growth and Development>Plant Growth

Both animals and plants grow. Why do we say that growth and differentiation in plants is open and not so in animals? Does this statement hold true for sponges also?

MEDIUM

Biology>Plant Physiology>Plant Growth and Development>Plant Growth

What are the different phases of growth? Give characteristics of each.

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Biology>Plant Physiology>Plant Growth and Development>Plant Growth

Growth can be measured in various ways. Which of these can be used as parameters to measure growth?

The growth involves

Important Questions on Plant Growth and Development

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