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Question:

True/false question

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

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Question:

Multiple choice question

The annual cycle of photosynthesis mainly follows

the changes in air temperature.

the changes in soil temperature.

the changes in light.

the changes in CO2 concentration.

Response:

the changes in light.

the changes in air temperature.

the changes in soil temperature.

the changes in CO2 concentration.

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Question:

True/false question

The rate of respiration decreases with temperature.

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

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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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True/false question

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

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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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Question:

Multiple choice question

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

Soil water

Soil nutrients

Solar radiation

Atmospheric CO2

Response:

Atmospheric CO2

Soil nutrients

Soil water

Solar radiation

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Question:

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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Question:

True/false question

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

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False

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

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Question:

Multiple choice question

Photoinhibition means the decrease in photosynthesis due to

exposure to excess of light.

exposure to excess of CO2.

exposure to shortage of soil moisture.

exposure to high temperature.

Response:

exposure to excess of light.

exposure to excess of CO2.

exposure to high temperature.

exposure to shortage of soil moisture.

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Question:

True/false question

Carbon becomes locked as part of the accumulating plant biomass as plants grow.

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Transpiration decreases as air becomes drier.

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Question:

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.