chapter 16: plant ecophysiology

Question 1

autotrophs

Answer 1

organism that can produce its own food using light, water, carbon dioxide, or other chemicals

Question 2

epiphytes

Answer 2

a plant that grows on another plant but is not parasitic
leads to water stress and nutrient shortages

Question 3

sessile

Answer 3

immobile, must tolerate conditions

Question 4

carbon balance

Answer 4

difference between CO2 uptake by ecosystems (photosynthesis) and CO2 loss to the atmosphere by respiration.

Question 5

net primary productivity

Answer 5

gained CO2 - lost CO2 = NPP

Question 6

transpiration

Answer 6

when plants take up liquid water from the soil and release water vapor into the air from their leaves

Question 7

C3 photosynthesis

Answer 7

rubisco accepts CO2
O2 captured instead of CO2 at high temperatures
photorespiration

Question 8

C4 photosynthesis

Answer 8

PEP carboxylase accepts CO2 first and reduces photorespiration

Question 9

CAM photosynthesis

Answer 9

plants close stomata during the day to reduce water loss, open at night to let in CO2
store CO2 as malate until daytime

Question 10

laminar flow

Answer 10

the motion of a fluid where every particle in the fluid follows the same path of its previous particles

Question 11

turbulent flow

Answer 11

the motion of a fluid which undergoes irregular fluctuations

Question 12

deciduousness

Answer 12

the quality of trees which lose their leaves in winter or the dry season