Simple quiz

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Your score was: 100 %

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Question Results

Score 1 of 1

Question:

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.

Response:

the changes in soil temperature.

the changes in CO2 concentration.

the changes in air temperature.

the changes in light.

Score 1 of 1

Question:

True/false question

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

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Response:

User answer
True
Score 1 of 1

Question:

Multiple choice question

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

sun light.

soil heat.

atmospheric oxygen.

soil nutrients.

Response:

soil nutrients.

atmospheric oxygen.

soil heat.

sun light.

Score 1 of 1

Question:

True/false question

Plant respiration captures CO2.

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Response:

User answerFeedback
False

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

Score 1 of 1

Question:

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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Response:

User answer
True
Score 1 of 1

Question:

True/false question

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

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Response:

User answer
True
Score 1 of 1

Question:

Multiple choice question

Photosynthesis of a tree canopy is driven or influenced by

soil moisture (REW).

atmospheric CO2.

air humidity (VPD).

air temperature (T).

photosynthetically active solar radiation (PAR).

the total leaf area (LAI).

Response:

atmospheric CO2.

soil moisture (REW).

air temperature (T).

the total leaf area (LAI).

air humidity (VPD).

photosynthetically active solar radiation (PAR).

Score 1 of 1

Question:

True/false question

High soil moisture leads to decreased photosynthesis.

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Response:

User answerFeedback
False

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

Score 1 of 1

Question:

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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Response:

User answer
True
Score 1 of 1

Question:

True/false question

When there is low soil moisture, plants close its stomata pores which then decreases photosynthesis.

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Response:

User answer
True
Score 1 of 1

Question:

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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Response:

User answer
True
Score 1 of 1

Question:

Multiple choice question

Photoinhibition means the decrease in photosynthesis due to

exposure to excess of CO2.

exposure to shortage of soil moisture.

exposure to excess of light.

exposure to high temperature.

Response:

exposure to high temperature

exposure to shortage of soil moisture

exposure to excess of light

exposure to excess of CO2

Score 1 of 1

Question:

True/false question

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

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Response:

User answerFeedback
False

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

Score 1 of 1

Question:

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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Response:

User answer
True
Score 1 of 1

Question:

True/false question

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

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Response:

User answer
True