Simple quiz

You got 13 of 15 possible points.
Your score was: 87 %

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Question Results

Score 1 of 1

Question:

True/false question

At low air humidity, a plant closes its stomata to prevent transpiration. The action also decreases photosynthesis

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Response:

User answer
True
Score 1 of 1

Question:

True/false question

Carbon becomes locked as part of the accumulating plant biomass as plants grow.

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Response:

User answer
True
Score 0 of 1

Question:

True/false question

High soil moisture leads to decreased photosynthesis.

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Response:

User answerFeedback
True

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

Score 1 of 1

Question:

True/false question

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

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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

atmospheric oxygen.

soil heat.

sun light.

soil nutrients.

Response:

sun light.

soil heat.

soil nutrients.

atmospheric oxygen.

Score 1 of 1

Question:

True/false question

De-hardening in spring involves gradual re-hydration of the cells, recovery of photosynthetic capacity and a tight control of water loss.

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Response:

User answer
True
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:

Multiple choice question

Photosynthesis of a tree canopy is driven or influenced by

the total leaf area (LAI).

air temperature (T).

atmospheric CO2.

photosynthetically active solar radiation (PAR).

soil moisture (REW).

air humidity (VPD).

Response:

the total leaf area (LAI).

air temperature (T).

photosynthetically active solar radiation (PAR).

soil moisture (REW).

air humidity (VPD).

atmospheric CO2.

Score 1 of 1

Question:

True/false question

Transpiration decreases as air becomes drier.

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Response:

User answer
False
Score 1 of 1

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
True
Score 1 of 1

Question:

Multiple choice question

Photoinhibition means the decrease in photosynthesis due to

exposure to shortage of soil moisture.

exposure to high temperature.

exposure to excess of light.

exposure to excess of CO2.

Response:

exposure to high temperature

exposure to excess of light

exposure to excess of CO2

exposure to shortage of soil moisture

Score 1 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
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:

Multiple choice question

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

Atmospheric CO2

Soil water

Soil nutrients

Solar radiation

Response:

Solar radiation

Atmospheric CO2

Soil water

Soil nutrients

Score 0 of 1

Question:

True/false question

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

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Response:

User answer
False