L11

Question 1

is the exposure to low, non-freezing temperatures.

Answer 1

chilling

Question 2

is a key environmental cue in the process of flowering through vernalization.

Answer 2

Chilling

Question 3

Pea and spinach, on the other hand, are?

Answer 3

chilling-resistant

Question 4

One growth phase that is particularly sensitive to cold is?

Answer 4

reproductive phase.

Question 5

Cold exposure induces what?

Answer 5

an oxidative stress

Question 6

cause:
- inhibition of seed germination
- reduction in plant growth
- improper development
- alteration in photosynthesis/ phenology
- decreased crop yield
- poor quality and oxidative stress

Answer 6

High temperature

Question 7

leads to a shortened life cycle and diminished plant productivity by inducing changes in the processes of respiration and photosynthesis.

Answer 7

Heat stress

Question 8

inactivate enzymes and inhibit several metabolic pathways, which leads to accumulation of undesirable and harmful ROS

Answer 8

High-temperature stress

Question 9

Those plants that are irreversibly damaged by temperatures between …..°C and …… °C are known as heat sensitive plant

Answer 9

30 and 40°C

Question 10

Plant get damaged above 40°C called?

Answer 10

Heat Resistant plant

Question 11

High-temperature stress also induces the synthesis of a new family of low molecular mass proteins

Answer 11

Heat-shock proteins HSPs

Question 12

Intracellular proteins are protected by the constitutive expression of HSPs under HT. It helps to preserve their stability and function through protein folding and thus acts as ………

Answer 12

a chaperone