2023 Biology Midterm Exam

Front

What is an enzyme?

Back

A protein that acts as a catalyst to speed up chemical reactions in biological processes.

Front

What conditions do enzymes require to function optimally?

Back

Enzymes require specific temperature and pH levels to function optimally.

Front

What is the role of carbohydrates in living organisms?

Back

Carbohydrates provide energy and serve as structural components in cells.

Front

What happens to a cell in a hypotonic solution?

Back

The cell will swell as water enters the cell due to osmosis.

Front

What is active transport?

Back

The movement of molecules across a membrane from low to high concentration, requiring energy.

Front

What is passive transport?

Back

The movement of molecules across a membrane from high to low concentration without the use of energy.

Front

What are examples of carbohydrates?

Back

Breads, pastas, fruits, and vegetables are examples of carbohydrates.

Front

What is the difference between saturated and unsaturated fats?

Back

Saturated fats have no double bonds between carbon atoms, while unsaturated fats have one or more double bonds.

Front

What is the function of DNA?

Back

DNA stores genetic information and provides instructions for the development and functioning of living organisms.

Front

What is the significance of the cell membrane?

Back

The cell membrane controls the movement of substances in and out of the cell, maintaining homeostasis.