Simple quiz

You got 13 of 15 possible points.
Your score was: 87 %

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Question Results

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:

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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:

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False

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

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 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:

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:

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True
Score 1 of 1

Question:

Multiple choice question

As plants respire, they release

carbon dioxide.

oxygen.

Response:

oxygen.

carbon dioxide.

Score 1 of 1

Question:

Multiple choice question

The annual cycle of photosynthesis mainly follows

the changes in CO2 concentration.

the changes in air temperature.

the changes in soil temperature.

the changes in light.

Response:

the changes in soil temperature.

the changes in air temperature.

the changes in light.

the changes in CO2 concentration.

Score 1 of 1

Question:

Multiple choice question

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

Solar radiation

Soil nutrients

Atmospheric CO2

Soil water

Response:

Soil nutrients

Solar radiation

Soil water

Atmospheric CO2

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:

Multiple choice question

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

atmospheric oxygen.

soil nutrients.

soil heat.

sun light.

Response:

sun light.

atmospheric oxygen.

soil nutrients.

soil heat.

Score 1 of 1

Question:

True/false question

Plant respiration captures CO2.

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Response:

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False

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

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:

Multiple choice question

Photoinhibition means the decrease in photosynthesis due to

exposure to excess of light.

exposure to shortage of soil moisture.

exposure to excess of CO2.

exposure to high temperature.

Response:

exposure to excess of light

exposure to shortage of soil moisture

exposure to high temperature

exposure to excess of 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.

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Response:

User answer
True
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.