Simple quiz

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Your score was: 7 %

Question Results

Score 1 of 1

Question:

Multiple choice question

What is the source of carbon that is assimilated in photosynthesis?

Atmospheric CO2

Soil water

Soil nutrients

Solar radiation

Response:

Soil water

Soil nutrients

Atmospheric CO2

Solar radiation

Score 0 of 1

Question:

Multiple choice question

As plants respire, they release

carbon dioxide.

oxygen.

Response:

oxygen.

Feedback:

Photosynthesis releases oxygen whereas respiration releases CO2.

carbon dioxide.

Score 0 of 1

Question:

True/false question

A complex microbiota lives belowground, releasing carbon dioxide to the soil.

Answer hidden

Response:

User answer
False
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Question:

True/false question

Leaf area increases with stand age, resulting in a decreasing rate of photosynthesis in the stand.

Answer hidden

Response:

User answerFeedback

An increment in leaf area increases also the photosynthesis of a tree stand. However, the relationship is saturating.

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Question:

True/false question

Carbon capture is performed by the green parts of plants via photosynthesis.

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Response:

User answer
Score 0 of 1
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Question:

True/false question

Almost half of the total biomass of a tree may be allocated to the roots.

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Response:

User answer
Score 0 of 1
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Question:

True/false question

The rate of respiration decreases with temperature.

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Response:

User answer
Score 0 of 1
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Question:

Multiple choice question

Photosynthesis of a tree canopy is driven or influenced by

air temperature (T).

photosynthetically active solar radiation (PAR).

atmospheric CO2.

air humidity (VPD).

soil moisture (REW).

the total leaf area (LAI).

Response:

the total leaf area (LAI).

photosynthetically active solar radiation (PAR).

air humidity (VPD).

air temperature (T).

soil moisture (REW).

atmospheric CO2.

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Question:

Multiple choice question

Photoinhibition means the decrease in photosynthesis due to

exposure to shortage of soil moisture.

exposure to excess of light.

exposure to excess of CO2.

exposure to high temperature.

Response:

exposure to excess of light

exposure to excess of CO2

exposure to high temperature

exposure to shortage of soil moisture

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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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Response:

User answer
Score 0 of 1
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Question:

True/false question

Plant respiration captures CO2.

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Response:

User answerFeedback

Unlike photosynhesis, plant respiration captures atmospheric oxygen and releases carbon dioxide.

Score 0 of 1
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Question:

True/false question

In some part of the stems, some photosynthesis may also occur.

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Response:

User answer
Score 0 of 1
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Question:

True/false question

Early spring is a tricky time for plants due to the combination of sunny but still quite cold days.

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Response:

User answer
Score 0 of 1
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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:

User answer
Score 0 of 1
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Question:

True/false question

Transpiration decreases as air becomes drier.

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Response:

User answer