Simple quiz

Käyttäjä sai pisteitä 10 / 15
Pisteet yhteensä: 67 %

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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:

Multiple choice question

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

soil heat.

soil nutrients.

sun light.

atmospheric oxygen.

Vastaus:

atmospheric oxygen.

sun light.

soil heat.

soil nutrients.

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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

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

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

Soil water

Soil nutrients

Solar radiation

Atmospheric CO2

Vastaus:

Atmospheric CO2

Soil nutrients

Soil water

Solar radiation

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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:

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

High soil moisture leads to decreased photosynthesis.

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Vastaus:

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

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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

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

Plants open its stomata to avoid losing too much water.

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Vastaus:

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Väärin

Plant closes its stomata to avoid losing too much water.

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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

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 shortage of soil moisture.

exposure to excess of CO2.

exposure to high temperature.

exposure to excess of light.

Vastaus:

exposure to shortage of soil moisture.

exposure to excess of light.

exposure to high temperature.

exposure to excess of CO2.

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Kysymys:

Multiple choice question

The annual cycle of photosynthesis mainly follows

the changes in soil temperature.

the changes in air temperature.

the changes in CO2 concentration.

the changes in light.

Vastaus:

the changes in CO2 concentration.

the changes in light.

the changes in air temperature.

the changes in soil temperature.