Photosynthesis and Cellular Respiration

What are the roles of ATP and NADPH in photosynthesis?

• ATP and NADPH are forms of chemical energy produced from the light dependent reactions to be used in the light independent reactions that produce sugars.

• ATP and NADPH are forms of chemical energy produced from the light independent reactions, to be used in the light dependent reactions that produce sugars.

• ATP and NADPH are forms of chemical energy produced from the light dependent reactions to be used in the light independent reactions that produce proteins.

• ATP and NADPH are forms of chemical energy produced from the light dependent reactions to be used in the light independent reactions that use sugars as reactants.

Identify the stages of photosynthesis and the connections between those stages. Applying this knowledge, what is the overall outcome of the light-dependent reactions in photosynthesis?

• NADPH and ATP molecules are produced during the light-independent reactions and are used to power the light-dependent reactions.

• Sugar and ATP are produced during the light-dependent reactions and are used to power the light-independent reactions.

• Carbon dioxide and NADPH are produced during the light-independent reactions and are used to power the light-dependent reactions.

• NADPH and ATP molecules are produced during the light-dependent reactions and are used to power the light-independent reactions.

Based on your understanding of the process of photosynthesis, predict what will happen to a plant leaf that loses CO2 too quickly.

• This event will have no effect on the rate of photosynthesis in the leaf.

• Photosynthesis in the leaf will slow down or possibly stop.

• Photosynthesis in the leaf will increase exponentially.

• Photosynthesis in the leaf will first decrease and then increase.

Examine the illustration of the photosynthesis equation. How does the equation relate to both photosynthesis and cellular respiration, and what is the connection between the two processes?

• Photosynthesis utilizes energy to build carbohydrates, while cellular respiration metabolizes carbohydrates.

• Photosynthesis utilizes energy to metabolize carbohydrates, while cellular respiration builds carbohydrates.

• Photosynthesis and cellular respiration both utilize carbon dioxide and water to produce carbohydrates.

• Photosynthesis and cellular respiration both metabolize carbohydrates to produce carbon dioxide and water.

In which compartment of the plant cell do the light-independent ( Calvin Cycle) reactions of

photosynthesis take place?

• Thylakoid

• Mesophyll

• Stroma

• Outer membrane

_______ and ________ are two major products of photosynthesis.

(a)  

If a plant were to be exposed to only red light, would photosynthesis be possible?

• Photosynthesis does not take place.

• The rate of photosynthesis increases sharply.

• The rate of photosynthesis decreases drastically.

• The rate of photosynthesis decreases and then increases.

Correctly label the indicated parts of a chloroplast.

• A. stroma, B. outer membrane, C. granum, D. thylakoid, E. inner membrane

• A. outer membrane, B. stroma, C. granum, D. thylakoid, E. inner membrane

• A. outer membrane, B. stroma, C. granum, D. inner membrane, E. thylakoid

• A. stroma, B. outer membrane, C. inner membrane, D. granum, E. thylakoid

Which words are missing from the equation for photosynthesis? carbon dioxide (CO2) + ________ + sunlight ---> sugar + __________

• Sugar, nitrogen

• Energy, ATP

• Water, oxygen

• Oxygen, carbon dioxide

The green pigment in the chloroplast is called (a)   .