Plant Growth and Development PYQs - Last 10 Years

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BiologyBotany2017-2026

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Practice 31 NEET Biology questions from Plant Growth and Development. Use the year-wise and type-wise breakdown to prioritize recent PYQs, then continue into the question list below.

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Last 10 Years Plant Growth and Development Questions

Showing 31 of 31 filtered questions.

1Plant Growth And Development

Length of the stem at time 0 is 20 cm . The arithmetic growth rate is 30 cm per day. What is the length of the stem at the end of the $7^{\text {th }}$ day?

2Plant Growth And Development

Which of the following plant growth regulators is used as herbicide?

3Plant Growth And Development

Which of the following plant growth regulators promotes internode elongation prior to flowering in cabbage?

4Plant Growth And Development

Heterophyllous development in response to environment is an example of which of the following phenomena?

5Plant Growth And Development

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6Plant Growth And Development

Which one of the following is not a characteristic of plant cells in the phase of elongation?

7Plant Growth And Development

Which one of the following phytohormones promotes nutrient mobilization which helps in the delay of leaf senescence in plants?

8Plant Growth And Development

Read the following statements on plant growth and development.
(A) Parthenocarpy can be induced by auxins.
(B) Plant growth regulators can be involved in promotion as well as inhibition of growth.
(C) Dedifferentiation is a pre-requisite fo...

9Plant Growth And Development

F. Skoog observed that callus proliferated from the internodal segments of tobacco stem when auxin was
supplied with one of the following except :

10Plant Growth And Development

Given below are some statements about plant growth regulators.
A. All GAs are acidic in nature.
B. Auxins are antagonists to GAs.
C. Zeatin was isolated from coconut milk.
D. Ethylene induces flowering in Mango.
E. Abscisic acid induces par...

11Plant Growth And Development

Match List-I with List-II :

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12Plant Growth And Development

Formation of interfascicular cambium from fully developed parenchyma cells is an example for

13Plant Growth And Development

Auxin is used by gardeners to prepare weed-free lawns. But no damage is caused to grass as auxin

14Plant Growth And Development

Spraying sugarcane crop with which of the following plant growth regulators, increases the length of stem, thus, increasing the yield?

15Plant Growth And Development

Which of the following statements is not correct ?

16Plant Growth And Development

Match List - I with List - II.

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17Plant Growth And Development

The phenomenon which is influenced by auxin and also played a major role in its discovery :

18Plant Growth And Development

Which hormone promotes internode/petiole elongation in deep water rice?

19Plant Growth And Development

Spraying of which of the following phytohormone on juvenile conifers helps hastening the maturity period,
that leads early seed production?

20Plant Growth And Development

Which of the following growth regulators is an adenine derivative?

21Plant Growth And Development

The ability of plants to follow different pathways in response to environment leading to formation of different kinds of structures is called

22Plant Growth And Development

Production of Cucumber has increased manifold in recent years. Application of which of the following phytohormones has resulted in this increased yield as the hormone is known to produce female flowers in the plants:

23Plant Growth And Development

The gaseous plant growth regulator is used in plants to:

24Plant Growth And Development

Which one of the following plants does not show plasticity?

25Plant Growth And Development

The plant hormone used to destroy weeds in a field

26Plant Growth And Development

The site of perception of light in plants during photoperiodism is

27Plant Growth And Development

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

28Plant Growth And Development

Which of the following is not an inhibitory
substance governing seed dormancy?

29Plant Growth And Development

Name the plant growth regulator which upon
spraying on sugarcane crop, increases the
length of stem, thus increasing the yield of
sugarcane crop

30Plant Growth And Development

What is the site of perception of photoperiod necessary for induction of flowering in plants?

31Plant Growth And Development

Fruit and leaf drop at early stages can be prevented by the application of