Simple quiz

You got 14 of 15 possible points.
Your score was: 93 %

Well done!

Question Results

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

The rate of respiration decreases with temperature.

Answer hidden

Response:

User answer
False
Score 1 of 1

Question:

Multiple choice question

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

Soil water

Soil nutrients

Atmospheric CO2

Solar radiation

Response:

Soil nutrients

Soil water

Solar radiation

Atmospheric CO2

Score 1 of 1

Question:

Multiple choice question

Photoinhibition means the decrease in photosynthesis due to

exposure to high temperature.

exposure to excess of CO2.

exposure to excess of light.

exposure to shortage of soil moisture.

Response:

exposure to excess of light

exposure to excess of CO2

exposure to high temperature

exposure to shortage of soil moisture

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

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

atmospheric oxygen.

soil heat.

sun light.

soil nutrients.

Response:

sun light.

soil heat.

atmospheric oxygen.

soil nutrients.

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
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

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

Answer hidden

Response:

User answer
True
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.

Answer hidden

Response:

User answer
True
Score 1 of 1

Question:

Multiple choice question

The annual cycle of photosynthesis mainly follows

the changes in air temperature.

the changes in CO2 concentration.

the changes in soil temperature.

the changes in light.

Response:

the changes in air temperature.

the changes in soil temperature.

the changes in CO2 concentration.

the changes in light.

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.

Answer hidden

Response:

User answer
True
Score 0 of 1

Question:

True/false question

Transpiration decreases as air becomes drier.

Answer hidden

Response:

User answer
True
Score 1 of 1

Question:

Multiple choice question

Photosynthesis of a tree canopy is driven or influenced by

atmospheric CO2.

soil moisture (REW).

air temperature (T).

photosynthetically active solar radiation (PAR).

air humidity (VPD).

the total leaf area (LAI).

Response:

photosynthetically active solar radiation (PAR).

air humidity (VPD).

soil moisture (REW).

air temperature (T).

the total leaf area (LAI).

atmospheric CO2.

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.

Answer hidden

Response:

User answer
True