Biology Review

Front

What is homeostasis?

Back

Homeostasis is the process by which living organisms maintain a stable internal environment despite changes in external conditions.

Front

How does sweating help maintain homeostasis during exercise?

Back

Sweating helps regulate body temperature by cooling the body through evaporation.

Front

What are the two structures found in every living cell?

Back

The cell membrane and cytoplasm.

Front

What is the function of enzymes in biological reactions?

Back

Enzymes are proteins that increase the rate of chemical reactions inside cells.

Front

What are enzymes composed of?

Back

Enzymes are composed of simpler molecules called amino acids.

Front

Why is the shape of an enzyme important?

Back

The shape of an enzyme determines its function, as enzymes are specific to a substrate.

Front

What controls the movement of substances in and out of a cell?

Back

The cell membrane controls what can come into or leave a cell.

Front

What is the main function of chloroplasts?

Back

The main function of chloroplasts is photosynthesis, the process by which plants convert light energy into chemical energy.

Front

What is the difference between mitosis and meiosis?

Back

Mitosis is the process of cell division that results in two identical daughter cells, while meiosis is the process that produces gametes with half the number of chromosomes.

Front

What is the role of the nucleus in a cell?

Back

The nucleus is the control center of the cell, containing genetic material (DNA) and regulating cell activities.