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:

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

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

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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

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

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

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Kysymys:

Multiple choice question

Photosynthesis of a tree canopy is driven or influenced by

the total leaf area (LAI).

photosynthetically active solar radiation (PAR).

air humidity (VPD).

air temperature (T).

atmospheric CO2.

soil moisture (REW).

Vastaus:

soil moisture (REW).

the total leaf area (LAI).

air temperature (T).

air humidity (VPD).

photosynthetically active solar radiation (PAR).

atmospheric CO2.

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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:

soil heat.

atmospheric oxygen.

soil nutrients.

sun light.

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Kysymys:

True/false question

Plant respiration captures CO2.

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Vastaus:

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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

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

Soil water

Soil nutrients

Solar radiation

Atmospheric CO2

Vastaus:

Atmospheric CO2

Solar radiation

Soil nutrients

Soil water

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Kysymys:

Multiple choice question

Photoinhibition means the decrease in photosynthesis due to

exposure to high temperature.

exposure to shortage of soil moisture.

exposure to excess of CO2.

exposure to excess of light.

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

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

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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:

Multiple choice question

The annual cycle of photosynthesis mainly follows

the changes in light.

the changes in CO2 concentration.

the changes in air temperature.

the changes in soil temperature.

Vastaus:

the changes in air temperature.

the changes in CO2 concentration.

the changes in light.

the changes in soil temperature.

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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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