Enzymes, Cell Respiration, Photosynthesis Review

Front

What is an enzyme?

Back

A biological catalyst that speeds up chemical reactions in living organisms by lowering the activation energy.

Front

What is the optimum pH for enzyme activity?

Back

The pH at which an enzyme functions most effectively, often around 6.6 for many enzymes.

Front

What is cellular respiration?

Back

The process by which cells convert glucose and oxygen into energy (ATP), carbon dioxide, and water.

Front

What is the formula for cellular respiration?

Back

C6H12O6 + 6O2 → 6CO2 + 6H2O.

Front

What role does the H+ concentration gradient play in cellular respiration?

Back

It is used to generate ATP through chemiosmosis during oxidative phosphorylation.

Front

What is photosynthesis?

Back

The process by which green plants and some other organisms use sunlight to synthesize foods with the help of chlorophyll.

Front

What are the two main stages of photosynthesis?

Back

Light-dependent reactions and the Calvin cycle (light-independent reactions).

Front

What is the significance of light intensity in photosynthesis?

Back

Light intensity affects the rate of photosynthesis; too little light limits the process, while too much can cause damage.

Front

What is the role of NADPH in photosynthesis?

Back

NADPH is used as a reducing agent in the Calvin cycle to convert carbon dioxide into glucose.

Front

What is the relationship between photosynthesis and cellular respiration?

Back

Photosynthesis converts carbon dioxide and water into glucose and oxygen, while cellular respiration uses glucose and oxygen to produce energy, carbon dioxide, and water.