Simple quiz

You got 4 of 15 possible points.
Your score was: 27 %

Question Results

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 0 of 1

Question:

Multiple choice question

Photosynthesis of a tree canopy is driven or influenced by

the total leaf area (LAI).

air humidity (VPD).

photosynthetically active solar radiation (PAR).

soil moisture (REW).

atmospheric CO2.

air temperature (T).

Response:

air humidity (VPD).

photosynthetically active solar radiation (PAR).

soil moisture (REW).

the total leaf area (LAI).

atmospheric CO2.

air temperature (T).

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 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

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

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Response:

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True

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

Plants open its stomata to avoid losing too much water.

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Response:

User answerFeedback
True

Plant closes its stomata to avoid losing too much water.

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Question:

True/false question

The rate of respiration decreases with temperature.

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Response:

User answer
True
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.

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Question:

Multiple choice question

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

Soil water

Solar radiation

Soil nutrients

Atmospheric CO2

Response:

Atmospheric CO2

Solar radiation

Soil water

Soil nutrients

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 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

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

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Response:

User answer
True
Score 0 of 1

Question:

Multiple choice question

The annual cycle of photosynthesis mainly follows

the changes in light.

the changes in soil temperature.

the changes in CO2 concentration.

the changes in air temperature.

Response:

the changes in soil temperature.

the changes in CO2 concentration.

the changes in air temperature.

the changes in light.

Score 0 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.

atmospheric oxygen.

soil nutrients.

soil heat.

Score 0 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
False