Biology Review Fall 2024

Front

What is an enzyme?

Back

A protein that acts as a catalyst to speed up chemical reactions in the body.

Front

What factors can affect enzyme activity?

Back

Temperature, pH (acidity), and the concentration of substrates.

Front

What is the difference between passive transport and active transport?

Back

Active transport requires energy to move molecules against their concentration gradient, while passive transport does not require energy and moves molecules down their concentration gradient.

Front

What is the primary function of nucleic acids?

Back

To store and transmit genetic information.

Front

What are the two main types of nucleic acids?

Back

DNA (deoxyribonucleic acid) and RNA (ribonucleic acid).

Front

What is the role of the digestive system?

Back

To break down food into nutrients that can be absorbed into the bloodstream.

Front

What is the role of the circulatory system?

Back

To transport nutrients, gases, hormones, and waste products throughout the body.

Front

What is the primary function of the cell membrane?

Back

To control the movement of substances in and out of the cell.

Front

What is homeostasis?

Back

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

Front

What is the function of mitochondria?

Back

To produce energy (ATP) through cellular respiration.