Simple quiz

You got 8 of 15 possible points.
Your score was: 53 %

Question Results

Score 1 of 1

Question:

True/false question

Transpiration decreases as air becomes drier.

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Response:

User answer
False
Score 0 of 1

Question:

Multiple choice question

As plants respire, they release

oxygen.

carbon dioxide.

Response:

carbon dioxide.

oxygen.

Feedback:

Photosynthesis releases oxygen whereas respiration releases CO2.

Score 1 of 1

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
False
Score 0 of 1

Question:

True/false question

In general, the more carbon dioxide that is available to the plant, the faster the rate of photosynthesis - if other factors are favourable.

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Response:

User answer
False
Score 0 of 1

Question:

True/false question

Plant respiration captures CO2.

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Response:

User answerFeedback
True

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

Score 1 of 1

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
True
Score 1 of 1

Question:

True/false question

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

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Response:

User answer
True
Score 1 of 1

Question:

True/false question

Plants open its stomata to avoid losing too much water.

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Response:

User answerFeedback
False

Plant closes its stomata to avoid losing too much water.

Score 1 of 1

Question:

True/false question

High soil moisture leads to decreased photosynthesis.

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Response:

User answerFeedback
False

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

Score 0 of 1

Question:

True/false question

The rate of respiration decreases with temperature.

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Response:

User answer
True
Score 0 of 1

Question:

Multiple choice question

Photosynthesis of a tree canopy is driven or influenced by

photosynthetically active solar radiation (PAR).

atmospheric CO2.

the total leaf area (LAI).

air humidity (VPD).

air temperature (T).

soil moisture (REW).

Response:

air temperature (T).

atmospheric CO2.

photosynthetically active solar radiation (PAR).

soil moisture (REW).

the total leaf area (LAI).

air humidity (VPD).

Score 0 of 1

Question:

Multiple choice question

The annual cycle of photosynthesis mainly follows

the changes in CO2 concentration.

the changes in light.

the changes in air temperature.

the changes in soil temperature.

Response:

the changes in CO2 concentration.

the changes in soil temperature.

the changes in light.

the changes in air temperature.

Score 1 of 1

Question:

True/false question

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

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Response:

User answer
True
Score 1 of 1

Question:

Multiple choice question

To transform atmospheric CO2 into organic molecules, plants can use the energy from

sun light.

soil nutrients.

soil heat.

atmospheric oxygen.

Response:

atmospheric oxygen.

soil nutrients.

sun light.

soil heat.

Score 0 of 1

Question:

Multiple choice question

Photoinhibition means the decrease in photosynthesis due to

exposure to excess of CO2.

exposure to high temperature.

exposure to shortage of soil moisture.

exposure to excess of light.

Response:

exposure to excess of CO2

exposure to high temperature

exposure to shortage of soil moisture

exposure to excess of light