Simple quiz

You got 2 of 15 possible points.
Your score was: 13 %

Question Results

Score 0 of 1

Question:

True/false question

Plants open its stomata to avoid losing too much water.

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True

Plant closes its stomata to avoid losing too much water.

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).

soil moisture (REW).

air temperature (T).

Response:

the total leaf area (LAI).

soil moisture (REW).

atmospheric CO2.

air temperature (T).

air humidity (VPD).

photosynthetically active solar radiation (PAR).

Score 0 of 1

Question:

Multiple choice question

As plants respire, they release

oxygen.

carbon dioxide.

Response:

oxygen.

Feedback:

Photosynthesis releases oxygen whereas respiration releases CO2.

carbon dioxide.

Score 1 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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False

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

Score 0 of 1

Question:

True/false question

High soil moisture leads to decreased photosynthesis.

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True

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

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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True
Score 0 of 1
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Question:

Multiple choice question

Photoinhibition means the decrease in photosynthesis due to

exposure to excess of CO2.

exposure to shortage of soil moisture.

exposure to high temperature.

exposure to excess of light.

Response:

exposure to excess of light.

exposure to excess of CO2.

exposure to high temperature.

exposure to shortage of soil moisture.

Score 0 of 1
(skipped)

Question:

True/false question

The rate of respiration decreases with temperature.

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Score 0 of 1
(skipped)

Question:

True/false question

Plant respiration captures CO2.

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Response:

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

Score 0 of 1
(skipped)

Question:

True/false question

Almost half of the total biomass of a tree may be allocated to the roots.

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Score 0 of 1
(skipped)

Question:

True/false question

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

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Score 0 of 1
(skipped)

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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Score 0 of 1
(skipped)

Question:

True/false question

Transpiration decreases as air becomes drier.

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Score 0 of 1
(skipped)

Question:

True/false question

When there is low soil moisture, plants close its stomata pores which then decreases photosynthesis.

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Response:

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Score 0 of 1
(skipped)

Question:

True/false question

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

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Response:

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