AP BIOLOGY

LABORATORY REVIEW

TRANSPIRATION

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
If carbon dioxide is completely removed from a plant’s environment, what would you expect to happen to the plant’s rate of photosynthesis?
A
Sugar production will likely increase.
B
Sugars will not be produced.
C
The rate of sugar production will decrease .
D
Fewer sugars will be produced at first, but then the plant will recover.
Explanation: 

Detailed explanation-1: -The same number of sugars will be produced but without carbon dioxide. Carbon dioxide does not affect the production of high-energy sugars in plants.

Detailed explanation-2: -If carbon dioxide is completely removed from a plant’s environment, we would expect the plant to stop producing high-energy sugars altogether. CO2 is necessary for the plant to perform photosynthesis, meaning without CO2 the plant has no way to obtain energy-it will likely die in this scenario.

Detailed explanation-3: -It is not unusual for plants to stop taking in carbon dioxide to uptake small amounts of oxygen at night. In the event that plants cease to take up CO2 all together, they will cease to convert sunlight into carbohydrates, and die.

Detailed explanation-4: -So, without carbon dioxide, a plant would basically starve even if you had a sunny spot, lots of water and even extra fertilizer.

Detailed explanation-5: -What would happen to a plant’s production of glucose? If you remove its carbon dioxide, supplants need come dioxide to produce glucose. Carbon dioxide is the carbon source for advance glucose production via via photosynthesis. So with that becomes dioxide, they cannot make glucose, they cannot make glucose.

There is 1 question to complete.