Simple quiz

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Kysymys:

True/false question

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

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Kysymys:

Multiple choice question

Photoinhibition means the decrease in photosynthesis due to

exposure to high temperature.

exposure to excess of light.

exposure to excess of CO2.

exposure to shortage of soil moisture.

Vastaus:

exposure to shortage of soil moisture

exposure to excess of CO2

exposure to excess of light

exposure to high temperature

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Kysymys:

True/false question

Plant respiration captures CO2.

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

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Kysymys:

Multiple choice question

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

atmospheric oxygen.

soil heat.

sun light.

soil nutrients.

Vastaus:

soil nutrients.

sun light.

atmospheric oxygen.

soil heat.

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Kysymys:

Multiple choice question

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

Soil nutrients

Atmospheric CO2

Solar radiation

Soil water

Vastaus:

Atmospheric CO2

Solar radiation

Soil nutrients

Soil water

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Kysymys:

True/false question

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

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Kysymys:

True/false question

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

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Kysymys:

Multiple choice question

Photosynthesis of a tree canopy is driven or influenced by

atmospheric CO2.

the total leaf area (LAI).

air temperature (T).

soil moisture (REW).

air humidity (VPD).

photosynthetically active solar radiation (PAR).

Vastaus:

the total leaf area (LAI).

atmospheric CO2.

soil moisture (REW).

air humidity (VPD).

photosynthetically active solar radiation (PAR).

air temperature (T).

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Kysymys:

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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Kysymys:

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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Kysymys:

True/false question

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

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Kysymys:

True/false question

Transpiration decreases as air becomes drier.

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Kysymys:

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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Kysymys:

True/false question

At low air humidity, a plant closes its stomata to prevent transpiration. The action also decreases photosynthesis

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Kysymys:

True/false question

Plants open its stomata to avoid losing too much water.

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Plant closes its stomata to avoid losing too much water.