F2 - SEM1 - Living things and air - 7.4 Flashcards
The net gas exchange in plants depends on?
7.4 Gas exchange in plants
The relative rate of
photosynthesis and respiration
7.4 Gas exchange in plants
What does it mean if hydrogencarbonate indicator is purple in colour?
7.4 Gas exchange in plants
Lower than normal in air
7.4 Gas exchange in plants
What does it mean if hydrogencarbonate indicator is red in colour?
7.4 Gas exchange in plants
Normal level in air
7.4 Gas exchange in plants
What does it mean if hydrogencarbonate indicator is yellow in colour?
7.4 Gas exchange in plants
Higher than normal level in air
7.4 Gas exchange in plants
Under light conditions, rate of photosynthesis is ____ than rate of respiration
7.4 Gas exchange in plants
higher
7.4 Gas exchange in plants
What does it mean by net uptake?
7.4 Gas exchange in plants
The amount used is greater than the amount produced
7.4 Gas exchange in plants
What does it meant by net release?
7.4 Gas exchange in plants
The amount produced is greater than the amount used
Under light conditions, net uptake of ____ and net release of ____
7.4 Gas exchange in plants
Under light conditions, net uptake of carbon dioxide and net release of oxygen
7.4 Gas exchange in plants
Under dark conditions, net uptake of ____ and net release of ____
7.4 Gas exchange in plants
Under dark conditions, net uptake of oxygen and net release of carbon dioxide
7.4 Gas exchange in plants
True or False?
Under light conditions, plants carry out photosynthesis only. Under dark conditions, plants carry out respiration only.
7.4 Gas exchange in plants
False
Under light condition, plants carry out photosynthesis and respiration
7.4 Gas exchange in plants
Gas exchange in plants is carried out through ____
7.4 Gas exchange in plants
stomata
7.4 Gas exchange in plants
True or False?
Stomats are present on leaf epidermis
7.4 Gas exchange in plants
True
7.4 Gas exchange in plants
True or False?
Planting trees along the road can help take up carbon dioxide given out by cars.
7.4 Gas exchange in plants
True
7.4 Gas exchange in plants
What is the function of sodium hydrogencarbonate solution?
7.4 Gas exchange in plants
It breaks down to provide carbon dioxide
7.4 Gas exchange in plants