Simple quiz

You got 5 of 15 possible points.
Your score was: 33 %

Question Results

Score 0 of 1

Question:

True/false question

High soil moisture leads to decreased photosynthesis.

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Response:

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True

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

Score 0 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
False
Score 0 of 1

Question:

True/false question

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

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Response:

User answer
True
Score 0 of 1

Question:

Multiple choice question

Photosynthesis of a tree canopy is driven or influenced by

air humidity (VPD).

air temperature (T).

the total leaf area (LAI).

atmospheric CO2.

soil moisture (REW).

photosynthetically active solar radiation (PAR).

Response:

the total leaf area (LAI).

air humidity (VPD).

air temperature (T).

soil moisture (REW).

atmospheric CO2.

photosynthetically active solar radiation (PAR).

Score 1 of 1

Question:

True/false question

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

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Response:

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True
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 0 of 1

Question:

Multiple choice question

As plants respire, they release

oxygen.

carbon dioxide.

Response:

oxygen.

Feedback:

Photosynthesis releases oxygen whereas respiration releases CO2.

carbon dioxide.

Score 0 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
False
Score 1 of 1

Question:

Multiple choice question

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

soil heat.

atmospheric oxygen.

soil nutrients.

sun light.

Response:

sun light.

atmospheric oxygen.

soil nutrients.

soil heat.

Score 0 of 1

Question:

Multiple choice question

Photoinhibition means the decrease in photosynthesis due to

exposure to shortage of soil moisture.

exposure to high temperature.

exposure to excess of light.

exposure to excess of CO2.

Response:

exposure to excess of light.

exposure to shortage of soil moisture.

exposure to excess of CO2.

exposure to high temperature.

Score 0 of 1

Question:

True/false question

The rate of respiration decreases with temperature.

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Response:

User answer
True
Score 0 of 1

Question:

Multiple choice question

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

Soil nutrients

Solar radiation

Atmospheric CO2

Soil water

Response:

Atmospheric CO2

Soil nutrients

Soil water

Solar radiation

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

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

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Response:

User answer
True
Score 0 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
False