Simple quiz

Käyttäjä sai pisteitä 10 / 15
Pisteet yhteensä: 67 %

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Tulos 0 / 1

Kysymys:

True/false question

Transpiration decreases as air becomes drier.

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Vastaus:

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Kysymys:

Multiple choice question

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

sun light.

soil nutrients.

soil heat.

atmospheric oxygen.

Vastaus:

sun light.

atmospheric oxygen.

soil nutrients.

soil heat.

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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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Vastaus:

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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

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

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

Solar radiation

Soil nutrients

Atmospheric CO2

Vastaus:

Soil water

Soil nutrients

Atmospheric CO2

Solar radiation

Tulos 0 / 1

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 CO2 concentration.

the changes in soil temperature.

the changes in light.

the changes in air 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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Vastaus:

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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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Vastaus:

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Tulos 1 / 1

Kysymys:

True/false question

Plants open its stomata to avoid losing too much water.

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Vastaus:

Käyttäjän vastausFeedback
Väärin

Plant closes its stomata to avoid losing too much water.

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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:

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Kysymys:

True/false question

Plant respiration captures CO2.

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Vastaus:

Käyttäjän vastausFeedback
Oikein

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

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Kysymys:

True/false question

The rate of respiration decreases with temperature.

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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
Väärin

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