A plant that has Krantz anatomy likely conducts C3 metabolism only Photorespirat

Q: A plant that has Krantz anatomy likely conducts C3 metabolism only Photorespirat

A plant that has Krantz anatomy likely conducts C4 photosynthesis or Hatch slack pathway. light compensation point is This is when the light is strong enough for photosynthesis to equal respiration. or oxygen uptake by respiration equals oxygen release by photosynthesis. All of the above. Radiative transfer, sensible heat transfer, latent heat transfer are used by leaves to dissipate excess heat energy True

ID: 201407 • Letter: A

Question

A plant that has Krantz anatomy likely conducts

C3 metabolism only

Photorespiration only

CAM metabolism

C4 metabolism

The oxidative pentose phosphate pathway (OPPP) only

In photosynthesis research, what is the light compensation point?

This is when the light is strong enough for chloroplasts to move within the cells

This is when the [CO2] to [O2] ratio in the aqueous phase is sufficient for C3 photosynthesis

This is the light intensity when maximal photosynthesis is reached (photosynthesis is saturated)

This is the respiration rate when the plant is in complete darkness

This is when the light is strong enough for photosynthesis to equal respiration

Leaves exposed to full sunlight absorb a lot of energy and need to dissipate heat effectively to prevent damage. Which of the following are used by leaves to dissipate excess heat energy?

Radiative heat loss

Sensible heat loss

Latent heat loss

All of the above

A and C only.

If two plants of the same species are growing on the sunny side and the shady side of a building, the plant growing on the sunny side may have “sun leaves” that are broader and thinner than “shade leaves”.

True

False

If there is no shortage of water available to a plant, what is the approximate conversion of light energy (i.e., sun light) into biomass assuming that light levels are near but not dramatically exceeding the light saturation intensity?

Less than 1%

~5%

~10%

~27%

~90%

Explanation / Answer

A plant that has Krantz anatomy likely conducts C4 photosynthesis or Hatch slack pathway.

light compensation point is This is when the light is strong enough for photosynthesis to equal respiration. or oxygen uptake by respiration equals oxygen release by photosynthesis.

All of the above. Radiative transfer, sensible heat transfer, latent heat transfer are used by leaves to dissipate excess heat energy

True

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A plant that has Krantz anatomy likely conducts C3 metabolism only Photorespirat

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