Simple quiz

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Kysymys:

True/false question

Transpiration decreases as air becomes drier.

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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:

Multiple choice question

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

sun light.

soil nutrients.

atmospheric oxygen.

soil heat.

Vastaus:

sun light.

soil heat.

soil nutrients.

atmospheric oxygen.

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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.

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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

The rate of respiration decreases with temperature.

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Kysymys:

True/false question

High soil moisture leads to decreased photosynthesis.

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

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Kysymys:

Multiple choice question

Photosynthesis of a tree canopy is driven or influenced by

air temperature (T).

soil moisture (REW).

photosynthetically active solar radiation (PAR).

air humidity (VPD).

atmospheric CO2.

the total leaf area (LAI).

Vastaus:

soil moisture (REW).

air temperature (T).

photosynthetically active solar radiation (PAR).

atmospheric CO2.

air humidity (VPD).

the total leaf area (LAI).

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Kysymys:

True/false question

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

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Kysymys:

Multiple choice question

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

Solar radiation

Atmospheric CO2

Soil nutrients

Soil water

Vastaus:

Soil nutrients

Atmospheric CO2

Solar radiation

Soil water

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Kysymys:

True/false question

De-hardening in spring involves gradual re-hydration of the cells, recovery of photosynthetic capacity and a tight control of water loss.

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Kysymys:

Multiple choice question

Photoinhibition means the decrease in photosynthesis due to

exposure to excess of light.

exposure to high temperature.

exposure to shortage of soil moisture.

exposure to excess of CO2.

Vastaus:

exposure to excess of light.

exposure to shortage of soil moisture.

exposure to excess of CO2.

exposure to high temperature.

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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:

Multiple choice question

The annual cycle of photosynthesis mainly follows

the changes in light.

the changes in soil temperature.

the changes in air temperature.

the changes in CO2 concentration.

Vastaus:

the changes in light.

the changes in CO2 concentration.

the changes in air temperature.

the changes in soil temperature.

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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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