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:

True/false question

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

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Kysymys:

Multiple choice question

As plants respire, they release

oxygen.

carbon dioxide.

Vastaus:

carbon dioxide.

oxygen.

Palaute:

Photosynthesis releases oxygen whereas respiration releases CO2.

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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

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

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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:

Multiple choice question

Photosynthesis of a tree canopy is driven or influenced by

soil moisture (REW).

the total leaf area (LAI).

air humidity (VPD).

atmospheric CO2.

photosynthetically active solar radiation (PAR).

air temperature (T).

Vastaus:

air temperature (T).

the total leaf area (LAI).

atmospheric CO2.

air humidity (VPD).

soil moisture (REW).

photosynthetically active solar radiation (PAR).

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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:

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

Plant respiration captures CO2.

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Vastaus:

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Oikein

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

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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:

Multiple choice question

The annual cycle of photosynthesis mainly follows

the changes in soil temperature.

the changes in CO2 concentration.

the changes in air temperature.

the changes in light.

Vastaus:

the changes in CO2 concentration.

the changes in light.

the changes in soil temperature.

the changes in air temperature.

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Kysymys:

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.

Vastaus:

exposure to high temperature

exposure to excess of CO2

exposure to excess of light

exposure to shortage of soil moisture

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Kysymys:

True/false question

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

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