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Question:

Multiple choice question

Photosynthesis shuts down if the temperature of previous night has been lower than

5 celsius.

0 celsius.

-5 celsius.

-10 celsius.

Response:

-5 celsius.

0 celsius.

-10 celsius.

5 celsius.

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Question:

True/false question

In trees, approximately half of the carbon bound in photosynthesis is used for construction of new biomass.

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Question:

Multiple choice question

"Stage of acclimation" refers to the seasonality of

the growth activity.

the litter fall activity.

the photosynthetic activity.

the flowering activity.

Response:

the photosynthetic activity.

the growth activity.

the flowering activity.

the litter fall activity.

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Question:

True/false question

High soil moisture leads to decreased photosynthesis.

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Response:

User answerFeedback

In boreal upland forests, low soil moisture decreases the rate of photosynthesis.

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Question:

True/false question

The effect of light on photosynthesis has a clear saturating pattern: more light results in more photosynthesis but eventually leaves cannot take full advantage of all the extra light.

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Question:

True/false question

Since stomata are the same pores through which carbon dioxide enters into the leaves, the result of their closure is a reduction in photosynthesis.

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Question:

Multiple choice question

Photosynthesis of a shoot can be measured by enclosing it within a chamber and following the change of

water vapour concentration in the air of this chamber.

air temperature in this chamber.

carbon dioxide concentration in the air of this chamber.

PAR radiation next to the chamber.

Response:

carbon dioxide concentration in the air of this chamber.

water vapour concentration in the air of this chamber.

air temperature in this chamber.

PAR radiation next to the chamber.

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Question:

True/false question

The air is moist if VPD (Vapour Pressure Deficit) is high.

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Question:

True/false question

REW stands for "Relative Extractable Water"

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Question:

True/false question

Plants open its stomata to avoid losing too much water.

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Response:

User answerFeedback

Plant closes its stomata to avoid losing too much water.

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Question:

True/false question

As VPD increases, photosynthesis decreases due to the closure of the stomata.

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Question:

True/false question

The stage of acclimation at any given day depends on the temperatures experienced by the plant during the previous months.

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The stage of acclimation at any given day depends on the temperatures experienced by the plant during the previous days.

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Question:

Multiple choice question

Respiration is a cellular process to obtain chemical energy from

the oxidation of water.

the oxidation of plant tissues.

the oxidation soil nutrients.

the oxidation of organic molecules.

Response:

the oxidation of plant tissues.

the oxidation of water.

the oxidation of organic molecules.

the oxidation soil nutrients.

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Question:

True/false question

When there is low soil moisture, plants close its stomata pores which then decreases photosynthesis.

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Response:

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False
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Question:

Multiple choice question

Photoinhibition means the decrease in photosynthesis due to

exposure to high temperature.

exposure to excess of light.

exposure to excess of CO2.

exposure to shortage of soil moisture.

Response:

exposure to excess of light.

exposure to shortage of soil moisture.

exposure to high temperature.

exposure to excess of CO2.