Advanced quiz

You got 11 of 15 possible points.
Your score was: 73 %

Question Results

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:

Multiple choice question

Låga växter, mikroberna i marken och markens funktioner i allmänhet drar under vintern nytta av.
Välj ett alternative.

de låga temperaturerna

snöns isolerande inverkan

trädens långsammare aktivitet

den ringa mängden solljus

Response:

de låga temperaturerna

den ringa mängden solljus

trädens långsammare aktivitet

snöns isolerande inverkan

Score 1 of 1

Question:

True/false question

Då VPD ökar blir assimilationen långsammare eftersom växten tillsluter sina klyvöppningar.

Answer hidden

Response:

User answer
True
Score 1 of 1

Question:

Multiple choice question

"Stage of acclimation" refers to the seasonality of

the litter fall activity.

the photosynthetic activity.

the flowering activity.

the growth activity.

Response:

the photosynthetic activity.

the flowering activity.

the growth activity.

the litter fall activity.

Score 1 of 1

Question:

Multiple choice question

Photoinhibition means the decrease in photosynthesis due to

exposure to excess of light.

exposure to high temperature.

exposure to shortage of soil moisture.

exposure to excess of CO2.

Response:

exposure to excess of CO2.

exposure to shortage of soil moisture.

exposure to high temperature.

exposure to excess of light.

Score 1 of 1

Question:

True/false question

REW stands for "Relative Extractable Water"

Answer hidden

Response:

User answer
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.

Answer hidden

Response:

User answerFeedback
False

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

Score 1 of 1

Question:

True/false question

Since stomata are the same pores through which carbon dioxide enters into the leaves, the result of their closure is a reduction in photosynthesis.

Answer hidden

Response:

User answer
True
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

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

Plants open its stomata to avoid losing too much water.

Answer hidden

Response:

User answerFeedback
False

Plant closes its stomata to avoid losing too much water.

Score 1 of 1

Question:

True/false question

As VPD increases, photosynthesis decreases due to the closure of the stomata.

Answer hidden

Response:

User answer
True
Score 0 of 1

Question:

Multiple choice question

Photosynthesis shuts down if the temperature of previous night has been lower than

-5 celsius.

5 celsius.

-10 celsius.

0 celsius.

Response:

-5 celsius.

-10 celsius.

0 celsius.

5 celsius.

Score 0 of 1

Question:

True/false question

The stage of acclimation at any given day depends on the temperatures experienced by the plant during the previous months.

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Response:

User answerFeedback
True

The stage of acclimation at any given day depends on the temperatures experienced by the plant during the previous days.

Score 1 of 1

Question:

True/false question

The air is moist if VPD (Vapour Pressure Deficit) is high.

Answer hidden

Response:

User answer
False