Simple quiz

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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

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

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Kysymys:

Multiple choice question

As plants respire, they release

oxygen.

carbon dioxide.

Vastaus:

carbon dioxide.

oxygen.

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Kysymys:

Multiple choice question

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

atmospheric oxygen.

sun light.

soil heat.

soil nutrients.

Vastaus:

atmospheric oxygen.

sun light.

soil heat.

soil nutrients.

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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

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 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

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

photosynthetically active solar radiation (PAR).

the total leaf area (LAI).

atmospheric CO2.

air temperature (T).

air humidity (VPD).

soil moisture (REW).

Vastaus:

photosynthetically active solar radiation (PAR).

air temperature (T).

soil moisture (REW).

atmospheric CO2.

the total leaf area (LAI).

air humidity (VPD).

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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 light.

the changes in air temperature.

Vastaus:

the changes in soil temperature.

the changes in air temperature.

the changes in CO2 concentration.

the changes in light.

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Kysymys:

True/false question

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

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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:

True/false question

Plant respiration captures CO2.

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Vastaus:

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Väärin

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

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Kysymys:

True/false question

Leaf area increases with stand age, resulting in a decreasing rate of photosynthesis in the stand.

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Vastaus:

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Väärin

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

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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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Vastaus:

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Kysymys:

Multiple choice question

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

Solar radiation

Soil water

Soil nutrients

Atmospheric CO2

Vastaus:

Atmospheric CO2

Soil nutrients

Solar radiation

Soil water