EXAM III

Front

What is the purpose of the C4 pathway in plants?

Back

The C4 pathway fixes Carbon Dioxide in one part of the leaf and pumps it into the bundle sheath cells to reduce the occurrence of Photorespiration.

Front

Where does the Calvin Cycle (C3 Cycle) occur in the cell?

Back

The Calvin Cycle occurs in the Stroma of the Chloroplast.

Front

What is Competitive Inhibition in enzyme activity?

Back

Competitive Inhibition occurs when two or more materials vie for access to the active site of an enzyme, and at least one of them is not a reactant, preventing the reaction from occurring.

Front

What is Anabolism?

Back

Anabolism refers to the reactions that build molecules up in the body.

Front

What is Feedback Inhibition?

Back

Feedback Inhibition is the process where the final products of a metabolic pathway bind to the Allosteric site of the first enzyme in the pathway, shutting the pathway down.

Front

What is Photorespiration?

Back

Photorespiration is a process in plants where oxygen is consumed and carbon dioxide is released, often occurring when the concentration of carbon dioxide is low.

Front

What role do bundle sheath cells play in C4 plants?

Back

Bundle sheath cells in C4 plants are where the fixed carbon dioxide is released for the Calvin Cycle, minimizing photorespiration.

Front

What is the main difference between C3 and C4 photosynthesis?

Back

C3 photosynthesis occurs in the mesophyll cells, while C4 photosynthesis involves an additional step in bundle sheath cells to reduce photorespiration.

Front

What is the function of the Stroma in chloroplasts?

Back

The Stroma is the fluid-filled space in chloroplasts where the Calvin Cycle takes place.

Front

What is Noncompetitive Inhibition?

Back

Noncompetitive Inhibition occurs when an inhibitor binds to an enzyme at a site other than the active site, reducing the enzyme's activity regardless of the substrate concentration.