Simple quiz

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Tulos 1 / 1

Kysymys:

True/false question

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

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Vastaus:

Käyttäjän vastaus
Oikein
Tulos 0 / 1
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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:

Käyttäjän vastausFeedback

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

Tulos 0 / 1
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Kysymys:

True/false question

High soil moisture leads to decreased photosynthesis.

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Vastaus:

Käyttäjän vastausFeedback

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

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Kysymys:

True/false question

Plant respiration captures CO2.

Answer hidden

Vastaus:

Käyttäjän vastausFeedback

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

Tulos 0 / 1
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Kysymys:

Multiple choice question

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

Soil nutrients

Solar radiation

Soil water

Atmospheric CO2

Vastaus:

Atmospheric CO2

Soil nutrients

Soil water

Solar radiation

Tulos 0 / 1
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Kysymys:

True/false question

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

Answer hidden

Vastaus:

Käyttäjän vastaus
Tulos 0 / 1
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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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Vastaus:

Käyttäjän vastaus
Tulos 0 / 1
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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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Vastaus:

Käyttäjän vastaus
Tulos 0 / 1
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Kysymys:

Multiple choice question

The annual cycle of photosynthesis mainly follows

the changes in air temperature.

the changes in soil temperature.

the changes in CO2 concentration.

the changes in light.

Vastaus:

the changes in light.

the changes in air temperature.

the changes in soil temperature.

the changes in CO2 concentration.

Tulos 0 / 1
(skipped)

Kysymys:

Multiple choice question

As plants respire, they release

oxygen.

carbon dioxide.

Vastaus:

carbon dioxide.

oxygen.

Tulos 0 / 1
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Kysymys:

True/false question

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

Answer hidden

Vastaus:

Käyttäjän vastaus
Tulos 0 / 1
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Kysymys:

True/false question

The rate of respiration decreases with temperature.

Answer hidden

Vastaus:

Käyttäjän vastaus
Tulos 0 / 1
(skipped)

Kysymys:

True/false question

At low air humidity, a plant closes its stomata to prevent transpiration. The action also decreases photosynthesis

Answer hidden

Vastaus:

Käyttäjän vastaus
Tulos 0 / 1
(skipped)

Kysymys:

Multiple choice question

Photosynthesis of a tree canopy is driven or influenced by

atmospheric CO2.

soil moisture (REW).

air temperature (T).

air humidity (VPD).

the total leaf area (LAI).

photosynthetically active solar radiation (PAR).

Vastaus:

the total leaf area (LAI).

photosynthetically active solar radiation (PAR).

air humidity (VPD).

air temperature (T).

soil moisture (REW).

atmospheric CO2.

Tulos 0 / 1
(skipped)

Kysymys:

True/false question

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

Answer hidden

Vastaus:

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