Simple quiz

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

Question Results

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 0 of 1

Question:

True/false question

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

Answer hidden

Response:

User answer
False
Score 0 of 1

Question:

True/false question

Transpiration decreases as air becomes drier.

Answer hidden

Response:

User answer
True
Score 0 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
False
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:

True/false question

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

Answer hidden

Response:

User answer
True
Score 0 of 1

Question:

True/false question

Plants open its stomata to avoid losing too much water.

Answer hidden

Response:

User answerFeedback
True

Plant closes its stomata to avoid losing too much water.

Score 0 of 1

Question:

True/false question

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

Answer hidden

Response:

User answerFeedback
True

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

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.

Answer hidden

Response:

User answer
False
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:

Multiple choice question

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

soil heat.

atmospheric oxygen.

sun light.

soil nutrients.

Response:

soil nutrients.

atmospheric oxygen.

sun light.

soil heat.

Score 0 of 1

Question:

True/false question

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

Answer hidden

Response:

User answer
False
Score 1 of 1

Question:

True/false question

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

Answer hidden

Response:

User answer
True
Score 0 of 1

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 water

Soil nutrients

Solar radiation

Score 0 of 1

Question:

Multiple choice question

Photosynthesis of a tree canopy is driven or influenced by

photosynthetically active solar radiation (PAR).

atmospheric CO2.

the total leaf area (LAI).

air humidity (VPD).

soil moisture (REW).

air temperature (T).

Response:

air humidity (VPD).

the total leaf area (LAI).

soil moisture (REW).

atmospheric CO2.

air temperature (T).

photosynthetically active solar radiation (PAR).