Simple quiz

You got 8 of 15 possible points.
Your score was: 53 %

Question Results

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 1 of 1

Question:

Multiple choice question

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

soil nutrients.

soil heat.

atmospheric oxygen.

sun light.

Response:

atmospheric oxygen.

soil nutrients.

soil heat.

sun light.

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 0 of 1

Question:

True/false question

Plant respiration captures CO2.

Answer hidden

Response:

User answerFeedback
True

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

Score 0 of 1

Question:

Multiple choice question

As plants respire, they release

carbon dioxide.

oxygen.

Response:

carbon dioxide.

oxygen.

Feedback:

Photosynthesis releases oxygen whereas respiration releases CO2.

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 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 0 of 1
(skipped)

Question:

Multiple choice question

Photoinhibition means the decrease in photosynthesis due to

exposure to shortage of soil moisture.

exposure to excess of light.

exposure to excess of CO2.

exposure to high temperature.

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 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

Transpiration decreases as air becomes drier.

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

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

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 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

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.