AIIMS 2019 Biology Plant Physiology Revision Quiz for NEET & AIIMS Exams

Question 1

Nickel contributes to the formation of which one of the following?

Question 2

Direction: In each of the statement of the following question of Assertion is given followed by the corresponding statement of Reason. Of the statements, mark the correct answer as

Assertion (A) CAM plants lack structural compartment atom of the leaf as found in

plants.
Reason (R) Stomata of CAM plants are open during the day.

Question 3

Match the columns.
Column I
(Scientists)
A) Stephan Hales
B) Ingen Housz
C) Von Mohl
D) Sach
Column II
(Discoveries)
1) Importance of light and chlorophyll
2) Presence of chlorophyll In plants
3) Product of Photosynthesis is starch
4) Air and light control

Question 4

The biological clock measures the length at each night by the

Question 5

Which one plant movement is unidirectional?

Question 6

Direction: These questions consist two statement each printed as Assertion and Reason. While answering these question, you are required to choose any one of the following four options.

Assertion Presence of photorespiration is considered as a wasteful and energy consuming process in crop plants, ultimately leads to reduction in yield.
Reason During

synthesis up 50% CO₂ fixed may have to pass through the photorespiratory process to form carbohydrate such as sucrose.

Question 7

Direction: In each of the following questions statement of Assertion is given followed by corresponding statement of Reason. Of the statements, mark the correct answer as

Assertion (A) In the TCA cycle isomerisation of citric acid into isocitric acid is done by the change in

position.
Reason (R) Isocitric acid is more stable than citric Acid.

Question 8

The value of osmotic potential of an electrolyte is always

Question 9

Translocation of photosynthetic end products in sieve tubes is

Question 10

Direction: In each of the following questions statement of Assertion is given followed by corresponding statement of Reason. Of the statements, mark the correct answer as

Assertion (A) Water absorption in plants is reduced by lowering

tension.
Reason (R) The accumulation of

reduce water absorption in plants.