Advanced quiz

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

Question Results

Score 0 of 1

Question:

True/false question

REW stands for "Relative Extractable Water"

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Response:

User answer
False
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.

den ringa mängden solljus

de låga temperaturerna

snöns isolerande inverkan

trädens långsammare aktivitet

Response:

de låga temperaturerna

snöns isolerande inverkan

trädens långsammare aktivitet

den ringa mängden solljus

Score 1 of 1

Question:

True/false question

High soil moisture leads to decreased photosynthesis.

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Response:

User answerFeedback
False

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

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:

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:

Multiple choice question

Photosynthesis of a shoot can be measured by enclosing it within a chamber and following the change of

water vapour concentration in the air of this chamber.

PAR radiation next to the chamber.

air temperature in this chamber.

carbon dioxide concentration in the air of this chamber.

Response:

PAR radiation next to the chamber.

air temperature in this chamber.

carbon dioxide concentration in the air of this chamber.

water vapour concentration in the air of this chamber.

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.

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Response:

User answer
True
Score 1 of 1

Question:

True/false question

In trees, approximately half of the carbon bound in photosynthesis is used for construction of new biomass.

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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.

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Response:

User answer
True
Score 1 of 1

Question:

Multiple choice question

"Stage of acclimation" refers to the seasonality of

the growth activity.

the litter fall activity.

the flowering activity.

the photosynthetic activity.

Response:

the photosynthetic activity.

the flowering activity.

the growth activity.

the litter fall activity.

Score 1 of 1

Question:

Multiple choice question

Respiration is a cellular process to obtain chemical energy from

the oxidation soil nutrients.

the oxidation of water.

the oxidation of organic molecules.

the oxidation of plant tissues.

Response:

the oxidation of organic molecules.

the oxidation of water.

the oxidation soil nutrients.

the oxidation of plant tissues.

Score 1 of 1

Question:

True/false question

Plants open its stomata to avoid losing too much water.

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Response:

User answerFeedback
False

Plant closes its stomata to avoid losing too much water.

Score 1 of 1

Question:

Multiple choice question

Photoinhibition means the decrease in photosynthesis due to

exposure to excess of CO2.

exposure to high temperature.

exposure to excess of light.

exposure to shortage of soil moisture.

Response:

exposure to excess of light.

exposure to excess of CO2.

exposure to high temperature.

exposure to shortage of soil moisture.

Score 0 of 1

Question:

True/false question

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

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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

0 celsius.

-5 celsius.

-10 celsius.

5 celsius.

Response:

-5 celsius.

5 celsius.

0 celsius.

-10 celsius.

Score 0 of 1

Question:

True/false question

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

Answer hidden

Response:

User answer
False