Advanced quiz

You got 13 of 15 possible points.
Your score was: 87 %

Question Results

Score 1 of 1

Question:

True/false question

High soil moisture leads to decreased photosynthesis.

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Response:

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False

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

Score 1 of 1

Question:

True/false question

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

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Response:

User answer
True
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

carbon dioxide concentration in the air of this chamber.

PAR radiation next to the chamber.

air temperature in this chamber.

water vapour concentration in the air of this chamber.

Response:

PAR radiation next to the chamber.

water vapour concentration in the air of this chamber.

carbon dioxide concentration in the air of this chamber.

air temperature in this chamber.

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

snöns isolerande inverkan

trädens långsammare aktivitet

de låga temperaturerna

Response:

den ringa mängden solljus

trädens långsammare aktivitet

de låga temperaturerna

snöns isolerande inverkan

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:

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:

Multiple choice question

Respiration is a cellular process to obtain chemical energy from

the oxidation soil nutrients.

the oxidation of organic molecules.

the oxidation of plant tissues.

the oxidation of water.

Response:

the oxidation of plant tissues.

the oxidation soil nutrients.

the oxidation of water.

the oxidation of organic molecules.

Score 1 of 1

Question:

True/false question

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

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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

-5 celsius.

5 celsius.

0 celsius.

-10 celsius.

Response:

-10 celsius.

-5 celsius.

0 celsius.

5 celsius.

Score 1 of 1

Question:

True/false question

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

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Response:

User answer
False
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:

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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

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:

Multiple choice question

"Stage of acclimation" refers to the seasonality of

the growth activity.

the flowering activity.

the litter fall activity.

the photosynthetic activity.

Response:

the flowering activity.

the growth activity.

the litter fall activity.

the photosynthetic activity.

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:

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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

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 excess of CO2.

exposure to shortage of soil moisture.

exposure to high temperature.

exposure to excess of light.