List of top Water Science and Technology Questions on Plant Physiology asked in ICAR AIEEA (PG)

The process of respiration in plants generally takes place in
A. Chloroplast
B. Mitochondria
C. Cytoplasm
D. Grana
1. (A) and (B) only
2. (A) and (D) only
3. (B) and (C) only
4. (A), (B) and (C) only

Given below are two statements, one is labelled as Assertion (A) and other one labelled as Reason (R).
Assertion (A) : The water molecule is highly polar in nature.
Reason (R) : Water molecule has bent structure.
In light of the above statements, choose the correct answer from the options given below.

The specific heat of water is approximately............

Water molecule in liquid state forms............charged structure.

The dielectric constant of water is............

Kreb's Cycle is

Given below are two statements, one is labelled as Assertion (A) and other one labelled as Reason (R).
Assertion (A) : Respiration quotient of protein is 0.8 to 0.9.
Reason (R) : Respiration quotient is less than 1 as respiratory substrate is highly reduced.
In light of the above statements, choose the correct answer from the options given below.

Exposure to monochromatic light i.e. wavelength greater than 680nm in red zone that cause reduction in yield is
(A). Red drop
(B). Emersons effect
(C). Enhancement effect
(D). Inversion effect
Choose the correct answer from the options given below:

The 1st phase of respiration in which carbohydrates are used up

"Blossom End Rot" in tomato is due to deficiency of

Purple orange colour of older leaves is due to the deficiency of

Which of the following statements are correct with respect to Radiation method for estimation of reference crop evapotranspiration.
(A) Radiation method is essentially an adaptation of Hawksley formula.
(B) Radiation method is suggested for areas where available climate data include measured wind and humidity.
(C) In equatorial zone the radiation method may be more reliable than Blanney-Criddle approach.
(D) The amount of radiation received at the top of the atmosphere (Ra) is dependent on latitutde and the time of year only.
Choose the correct answer from the options given below :

Blossom end rot disease in tomato is caused due to deficiency of which of the following nutrient.

Which of the following is released during conversion of succinate to fumarate in TCA cycle ?

Which of the following statements are true about C3 type plants ?
(A) Have two CO2 accepter.
(B) First stable product is phosphoglyceric acid.
(C) Optimum temperature for photosynthesis is low as compared to C4
(D) Photosynthesis occurs even when stomata are closed.
(E) Photorespiration rate is very high.
Choose the correct answer from the options given below :

Given below are two statements, one is labelled as Assertion (A) and other one labelled as Reason (R).
Assertion (A) : Light normally increases the transpiration rate in plant.
Reason (R) : Light normally causes opening of stomata and increase in temperature.
In light of the above statements, choose the most appropriate answer from the options given below. :

Which of the following is not true about potassium nutrition in plants ?

Which of the following statements are true about nitrogen nutrition in plant ?
(A) Nitrogen deficiency symptoms first appears on old leaf.
(B) Excess nitrogen causes early maturity of crop.
(C) Nitrogen translocated from old leaves to new leaves in response to demand.
(D) Nearly 10% of Indian soils are deficient in nitrogen.
(E) Nitrogen is constituent of chlorophyll, amino acids and nucleic acids.
Choose the correct answer from the options given below :

Water potential is a measure of

The essentiality of nitrogen for plant growth was discovered by

Given below are two statements, one is labelled as Assertion A and the other is labelled as Reason R
Assertion A: Evapotranspiration decreases with increasing salinity level in soil.
Reason R: Low water availability is caused by high osmotic pressure of soil solution.
In light of the above statements, choose the correct answer from the options given below

Some plants are able to excrete the absorbed salts through specialised structures
A. Stomata
B. Hydathodes
C. Guard cells
D. Chloroplast
E. Capillary
Choose the correct answer from the options given below:

Which of the following plants DOES NOT has Krantz anatomy in their leaves?