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

High soil moisture leads to decreased photosynthesis.

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Response:

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False

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

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:

Multiple choice question

As plants respire, they release

oxygen.

carbon dioxide.

Response:

carbon dioxide.

oxygen.

Score 1 of 1

Question:

True/false question

Plant respiration captures CO2.

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Response:

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False

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

Score 1 of 1

Question:

Multiple choice question

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

soil nutrients.

soil heat.

sun light.

atmospheric oxygen.

Response:

soil heat.

atmospheric oxygen.

soil nutrients.

sun light.

Score 1 of 1

Question:

Multiple choice question

Photoinhibition means the decrease in photosynthesis due to

exposure to excess of light.

exposure to excess of CO2.

exposure to high temperature.

exposure to shortage of soil moisture.

Response:

exposure to excess of CO2

exposure to shortage of soil moisture

exposure to excess of light

exposure to high temperature

Score 0 of 1

Question:

Multiple choice question

Photosynthesis of a tree canopy is driven or influenced by

air humidity (VPD).

the total leaf area (LAI).

air temperature (T).

soil moisture (REW).

atmospheric CO2.

photosynthetically active solar radiation (PAR).

Response:

air temperature (T).

air humidity (VPD).

soil moisture (REW).

atmospheric CO2.

photosynthetically active solar radiation (PAR).

the total leaf area (LAI).

Score 1 of 1

Question:

Multiple choice question

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

Solar radiation

Soil nutrients

Atmospheric CO2

Soil water

Response:

Solar radiation

Soil nutrients

Soil water

Atmospheric CO2

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 0 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
True
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

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

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Response:

User answer
True
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

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

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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.