Exam #3 Review

Front

What are enzymes?

Back

Enzymes are biological catalysts that speed up chemical reactions in living organisms by lowering the activation energy required for the reaction.

Front

What is the primary function of enzymes in the digestive system?

Back

Enzymes in the digestive system break down food into smaller molecules that can be absorbed by the body.

Front

What are the products of photosynthesis?

Back

The products of photosynthesis are glucose and oxygen.

Front

What are the reactants of photosynthesis?

Back

The reactants of photosynthesis are carbon dioxide and water.

Front

What is the role of the active site in an enzyme?

Back

The active site is the region on the enzyme where the substrate binds, and it must have a complementary shape to the substrate for the enzyme to catalyze the reaction.

Front

How do temperature and pH affect enzyme activity?

Back

Enzymes have optimal temperature and pH ranges; deviations can lead to decreased activity or denaturation.

Front

What is denaturation in the context of enzymes?

Back

Denaturation is the process where an enzyme loses its functional shape due to external factors like heat or pH changes, rendering it inactive.

Front

What is cellular respiration?

Back

Cellular respiration is the process by which cells convert glucose and oxygen into energy (ATP), carbon dioxide, and water.

Front

What are the inputs of cellular respiration?

Back

The inputs (reactants) of cellular respiration are glucose and oxygen.

Front

What is the difference between proteins and lipids in animal cells?

Back

Proteins catalyze chemical reactions and perform various functions, while lipids form cellular membranes and serve as long-term energy storage.