Simple quiz

Käyttäjä sai pisteitä 10 / 15
Pisteet yhteensä: 67 %

Vastaukset

Tulos 1 / 1

Kysymys:

True/false question

Carbon capture is performed by the green parts of plants via photosynthesis.

Answer hidden

Vastaus:

Käyttäjän vastaus
Oikein
Tulos 1 / 1

Kysymys:

True/false question

When there is low soil moisture, plants close its stomata pores which then decreases photosynthesis.

Answer hidden

Vastaus:

Käyttäjän vastaus
Oikein
Tulos 0 / 1

Kysymys:

Multiple choice question

Photosynthesis of a tree canopy is driven or influenced by

photosynthetically active solar radiation (PAR).

atmospheric CO2.

the total leaf area (LAI).

air temperature (T).

air humidity (VPD).

soil moisture (REW).

Vastaus:

air humidity (VPD).

photosynthetically active solar radiation (PAR).

soil moisture (REW).

the total leaf area (LAI).

atmospheric CO2.

air temperature (T).

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:

Multiple choice question

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

Atmospheric CO2

Solar radiation

Soil nutrients

Soil water

Vastaus:

Atmospheric CO2

Soil nutrients

Solar radiation

Soil water

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.

Tulos 1 / 1

Kysymys:

Multiple choice question

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

sun light.

atmospheric oxygen.

soil nutrients.

soil heat.

Vastaus:

atmospheric oxygen.

soil nutrients.

sun light.

soil heat.

Tulos 0 / 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
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:

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

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

Answer hidden

Vastaus:

Käyttäjän vastaus
Oikein
Tulos 0 / 1

Kysymys:

True/false question

Plant respiration captures CO2.

Answer hidden

Vastaus:

Käyttäjän vastausFeedback
Oikein

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

Tulos 0 / 1

Kysymys:

True/false question

Leaf area increases with stand age, resulting in a decreasing rate of photosynthesis in the stand.

Answer hidden

Vastaus:

Käyttäjän vastausFeedback
Oikein

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

Tulos 0 / 1

Kysymys:

Multiple choice question

Photoinhibition means the decrease in photosynthesis due to

exposure to shortage of soil moisture.

exposure to excess of light.

exposure to high temperature.

exposure to excess of CO2.

Vastaus:

exposure to excess of CO2

exposure to excess of light

exposure to shortage of soil moisture

exposure to high temperature