Lec5

Question 1

Plants can avoid stress after germination
T/F?

Answer 1

F, can’t

Question 2

negative stress caused by high levels of a stressor

Answer 2

distress

Question 3

caused by living organisms (fungi, bacteria, insects, herbivores, plants/competition..).

Answer 3

Biotic stress

Question 4

is a physical (e.g., light, temperature) or chemical insult that the environment may impose on a plant

Answer 4

Abiotic stress

Question 5

reduce the impact of a stress, even though the stress is present in the environment.

Answer 5

Avoidance mechanisms

Question 6

requires that the organism exhibit the capacity to adjust or to acclimate to the stress.

Answer 6

Stress resistance

Question 7

characterized by genetic changes in the entire population that have been fixed by natural selection over many generations.

Answer 7

Adaptation to the environment

Question 8

process of acclimation to a stress

Answer 8

hardening

Question 9

plants that have the capacity to acclimate

Answer 9

hardy species.

Question 10

plants that exhibit a minimal capacity to acclimate to a specific stress

Answer 10

non hardy species

Question 11

plant is in a homeostatic state indicated by a constant rate of some physiological process measured over time.

Answer 11

optimal environmental condition,

Question 12

When can plant return to the original homeostatic state?

Answer 12

when the stress is removed

Question 13

represent nonpermanent changes in the physiology or morphology of the individual that can be reversed if the prevailing environmental conditions change

Answer 13

phenotypic plasticity