Simple quiz

You got 9 of 15 possible points.
Your score was: 60 %

Question Results

Score 1 of 1

Question:

Multiple choice question

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

soil nutrients.

atmospheric oxygen.

sun light.

soil heat.

Response:

sun light.

soil nutrients.

atmospheric oxygen.

soil heat.

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

High soil moisture leads to decreased photosynthesis.

Answer hidden

Response:

User answerFeedback
False

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

Score 1 of 1

Question:

True/false question

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

Answer hidden

Response:

User answer
True
Score 0 of 1

Question:

True/false question

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

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:

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 excess of CO2.

exposure to shortage of soil moisture.

exposure to excess of light.

Score 0 of 1

Question:

True/false question

The rate of respiration decreases with temperature.

Answer hidden

Response:

User answer
True
Score 1 of 1

Question:

True/false question

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

Answer hidden

Response:

User answer
False
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

Answer hidden

Response:

User answer
True
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 water

Solar radiation

Atmospheric CO2

Soil nutrients

Score 0 of 1

Question:

Multiple choice question

Photosynthesis of a tree canopy is driven or influenced by

air humidity (VPD).

photosynthetically active solar radiation (PAR).

soil moisture (REW).

atmospheric CO2.

air temperature (T).

the total leaf area (LAI).

Response:

atmospheric CO2.

photosynthetically active solar radiation (PAR).

air humidity (VPD).

air temperature (T).

the total leaf area (LAI).

soil moisture (REW).

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

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
True
Score 0 of 1

Question:

True/false question

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

Answer hidden

Response:

User answer
False