PLANT PHYSIOLOGY
PHOTOSYNTHESIS
|
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
|
|
|
Carbon dioxide moves in; nitrogen moves out
|
|
|
Carbon dioxide moves in; oxygen moves out
|
|
|
Oxygen moves in; nitrogen moves out
|
|
|
None of the above
|
Detailed explanation-1: -Which phrase best represents the net flow ofgases involved in photosynthesis? O Carbon dioxide moves in, nitrogen moves out.
Detailed explanation-2: -The raw materials of photosynthesis, water and carbon dioxide, enter the cells of the leaf. Oxygen, a by-product of photosynthesis, and water vapor exit the leaf. In most land plants, water enters the roots and is transported up to the leaves through specialized cells known as xylem (pronounced zigh-lem).
Detailed explanation-3: -Stomata, as mentioned above, are the structures through which gas exchange occurs in leaves. Each stoma is surrounded by two guard cells, which can open and close depending on environmental conditions.
Detailed explanation-4: -Which best describes the process of photosynthesis? Carbon dioxide and oxygen are converted into glucose and water.
Detailed explanation-5: -Figure: The two stages of photosynthesis: Photosynthesis takes place in two stages: light-dependent reactions and the Calvin cycle (light-independent reactions).