Biology PM2 Review

Front

What is enzyme activity?

Back

Enzyme activity refers to the rate at which an enzyme catalyzes a reaction. It is influenced by factors such as temperature, pH, and substrate concentration.

Front

How does temperature affect enzyme activity?

Back

Temperature affects enzyme activity by increasing the rate of reaction up to an optimal temperature, beyond which the enzyme may denature and lose its function.

Front

What is the difference between a scientific theory and a scientific law?

Back

A scientific theory is a well-supported explanation of natural phenomena, while a scientific law is a statement that describes a consistent relationship observed in nature.

Front

What is the role of mRNA in transcription?

Back

mRNA carries the genetic code from DNA to the ribosome, where it serves as a template for protein synthesis.

Front

What are the products of photosynthesis?

Back

The main products of photosynthesis are glucose and oxygen.

Front

How are photosynthesis and cellular respiration interrelated?

Back

Photosynthesis produces oxygen and glucose, which are used in cellular respiration, while cellular respiration produces carbon dioxide and water, which are used in photosynthesis.

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 is the significance of oxygen in cellular respiration?

Back

Oxygen is essential for aerobic cellular respiration as it acts as the final electron acceptor in the electron transport chain, allowing for the production of ATP.

Front

What is the function of ribosomes in protein synthesis?

Back

Ribosomes are the cellular structures where protein synthesis occurs, translating mRNA into polypeptide chains.

Front

What is the role of chlorophyll in photosynthesis?

Back

Chlorophyll is the green pigment in plants that absorbs light energy, primarily from the sun, to drive the process of photosynthesis.