Simple quiz

You got 10 of 15 possible points.
Your score was: 67 %

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 1 of 1

Question:

Multiple choice question

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

Soil water

Atmospheric CO2

Soil nutrients

Solar radiation

Response:

Solar radiation

Atmospheric CO2

Soil water

Soil nutrients

Score 1 of 1

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
True
Score 1 of 1

Question:

Multiple choice question

Photoinhibition means the decrease in photosynthesis due to

exposure to high temperature.

exposure to excess of CO2.

exposure to excess of light.

exposure to shortage of soil moisture.

Response:

exposure to shortage of soil moisture.

exposure to excess of CO2.

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

atmospheric CO2.

soil moisture (REW).

air humidity (VPD).

the total leaf area (LAI).

air temperature (T).

photosynthetically active solar radiation (PAR).

Response:

atmospheric CO2.

soil moisture (REW).

air humidity (VPD).

photosynthetically active solar radiation (PAR).

the total leaf area (LAI).

air temperature (T).

Score 0 of 1

Question:

True/false question

Plants open its stomata to avoid losing too much water.

Answer hidden

Response:

User answerFeedback
True

Plant closes its stomata to avoid losing too much water.

Score 1 of 1

Question:

True/false question

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

Answer hidden

Response:

User answer
True
Score 0 of 1

Question:

True/false question

Transpiration decreases as air becomes drier.

Answer hidden

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.

Answer hidden

Response:

User answer
True
Score 1 of 1

Question:

True/false question

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

Answer hidden

Response:

User answer
True
Score 1 of 1

Question:

True/false question

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

Answer hidden

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 heat.

atmospheric oxygen.

soil nutrients.

Response:

atmospheric oxygen.

soil nutrients.

soil heat.

sun light.

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:

User answerFeedback
True

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

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

carbon dioxide.

oxygen.

Response:

carbon dioxide.

oxygen.