Saturday, February 18, 2012

In photosynthesis, energy from the sun is being? photosynthesis questions?

in photosynthesis, energy from the sun is being?

a. turned into light

b. entirely lost to heat

c. stored as carbohydrates

d. absorbed as green light



which best describes light-dependent reaction?

a. they are the last stage of photosynthesis

b. they utilize the energy stored in ATP and NADPH

c. they use carbon dioxide to synthesize protiens

d. they create energy-rich ADP and NAD+



which would you expect to increase the rate of photosynthesis?

a. increasing the carbon dioxide concentration

b. decreasing the amount of free hydrogen

c. increasing the oxygen concentration

d. decreasing the exposure to water|||1: C



Edit: To the person below me, 1 cannot be D. If green light was being absorbed than the leaf would be purple. The leave needs to reflect green light to appear green, not absorb it.



2: D (i think)

3: A|||Hiya,



1. In photosynthesis, energy from the sun is being - c - stored as carbohydrates

BECAUSE- plants use sunlight to make food. And their food is starch. And starch is a type of carbohydrate.



2. Which best describes light dependent reaction? - d - they create energy - rich ADP and NAD+

BECAUSE- The light-dependent reactions, or light reactions, are the first stage of photosynthesis. In this process light energy is converted into chemical energy, in the form of the energy-carriers ATP and NADPH. In the light-independent reactions, the formed NADPH and ATP drive the reduction of CO2 to more useful organic compounds, such as glucose.



3. Which would you expect to increase the rate of photosynthesis - a - increasing the carbon dioxide concentration.

BECAUSE - plants use carbon dioxide to release oxygen SO the more the concentration of CO2 the more the rate of photosynthesis is.



Hope this helps %26lt;3.|||1. d, the energy is only used to run the reaction

2. id say d

3. a
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