Simple quiz

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Your score was: 53 %

Question Results

Score 0 of 1

Question:

Multiple choice question

The annual cycle of photosynthesis mainly follows

the changes in soil temperature.

the changes in air temperature.

the changes in light.

the changes in CO2 concentration.

Response:

the changes in soil temperature.

the changes in air temperature.

the changes in CO2 concentration.

the changes in light.

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:

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:

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.

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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

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:

Multiple choice question

Photosynthesis of a tree canopy is driven or influenced by

atmospheric CO2.

soil moisture (REW).

photosynthetically active solar radiation (PAR).

air temperature (T).

air humidity (VPD).

the total leaf area (LAI).

Response:

soil moisture (REW).

photosynthetically active solar radiation (PAR).

the total leaf area (LAI).

atmospheric CO2.

air temperature (T).

air humidity (VPD).

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 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

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 0 of 1

Question:

Multiple choice question

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

Soil water

Solar radiation

Atmospheric CO2

Soil nutrients

Response:

Soil water

Atmospheric CO2

Soil nutrients

Solar radiation

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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:

True/false question

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

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Response:

User answer
True
Score 0 of 1

Question:

Multiple choice question

Photoinhibition means the decrease in photosynthesis due to

exposure to shortage of soil moisture.

exposure to excess of light.

exposure to high temperature.

exposure to excess of CO2.

Response:

exposure to excess of light

exposure to excess of CO2

exposure to shortage of soil moisture

exposure to high temperature

Score 0 of 1

Question:

True/false question

The rate of respiration decreases with temperature.

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Response:

User answer
True