Simple quiz

Käyttäjä sai pisteitä 12 / 15
Pisteet yhteensä: 80 %

Well done!

Vastaukset

Tulos 1 / 1

Kysymys:

True/false question

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

Answer hidden

Vastaus:

Käyttäjän vastaus
Oikein
Tulos 1 / 1

Kysymys:

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

Vastaus:

Käyttäjän vastaus
Oikein
Tulos 1 / 1

Kysymys:

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

Vastaus:

Käyttäjän vastaus
Oikein
Tulos 0 / 1

Kysymys:

Multiple choice question

The annual cycle of photosynthesis mainly follows

the changes in light.

the changes in soil temperature.

the changes in CO2 concentration.

the changes in air temperature.

Vastaus:

the changes in light.

the changes in CO2 concentration.

the changes in soil temperature.

the changes in air temperature.

Tulos 0 / 1

Kysymys:

True/false question

In some part of the stems, some photosynthesis may also occur.

Answer hidden

Vastaus:

Käyttäjän vastaus
Väärin
Tulos 1 / 1

Kysymys:

True/false question

Early spring is a tricky time for plants due to the combination of sunny but still quite cold days.

Answer hidden

Vastaus:

Käyttäjän vastaus
Oikein
Tulos 1 / 1

Kysymys:

Multiple choice question

As plants respire, they release

carbon dioxide.

oxygen.

Vastaus:

oxygen.

carbon dioxide.

Tulos 1 / 1

Kysymys:

True/false question

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

Answer hidden

Vastaus:

Käyttäjän vastaus
Oikein
Tulos 1 / 1

Kysymys:

Multiple choice question

Photoinhibition means the decrease in photosynthesis due to

exposure to high temperature.

exposure to excess of light.

exposure to shortage of soil moisture.

exposure to excess of CO2.

Vastaus:

exposure to excess of CO2.

exposure to high temperature.

exposure to shortage of soil moisture.

exposure to excess of light.

Tulos 1 / 1

Kysymys:

Multiple choice question

What is the source of carbon that is assimilated in photosynthesis?

Atmospheric CO2

Soil water

Solar radiation

Soil nutrients

Vastaus:

Soil water

Solar radiation

Atmospheric CO2

Soil nutrients

Tulos 0 / 1

Kysymys:

True/false question

Transpiration decreases as air becomes drier.

Answer hidden

Vastaus:

Käyttäjän vastaus
Oikein
Tulos 1 / 1

Kysymys:

True/false question

The rate of respiration decreases with temperature.

Answer hidden

Vastaus:

Käyttäjän vastaus
Väärin
Tulos 1 / 1

Kysymys:

True/false question

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

Answer hidden

Vastaus:

Käyttäjän vastaus
Väärin
Tulos 1 / 1

Kysymys:

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

Vastaus:

Käyttäjän vastaus
Oikein
Tulos 1 / 1

Kysymys:

True/false question

High soil moisture leads to decreased photosynthesis.

Answer hidden

Vastaus:

Käyttäjän vastausFeedback
Väärin

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