Unit 1 Review

Front

What is diffusion?

Back

Diffusion is the process by which molecules spread from areas of high concentration to areas of low concentration, essential for processes like gas exchange in lungs and nutrient absorption in cells.

Front

What is the significance of diffusion in biological systems?

Back

Diffusion is essential for processes like gas exchange in lungs and nutrient absorption in cells.

Front

What is the ultimate goal of the cell membrane?

Back

The ultimate goal of the cell membrane is to maintain homeostasis of the cell.

Front

What happens if the shape of an enzyme changes due to high temperature or pH?

Back

If the shape of an enzyme changes due to high temperature or pH that is too high, it will not be able to catalyze the reaction.

Front

What is a selectively permeable membrane?

Back

A selectively permeable membrane allows some things to enter and leave cells while keeping other things out.

Front

What are the four main types of biomolecules?

Back

The four main types of biomolecules are carbohydrates, lipids, proteins, and nucleic acids.

Front

What is the function of carbohydrates in living organisms?

Back

Carbohydrates provide energy and serve as structural components in cells.

Front

What role do lipids play in biological systems?

Back

Lipids store energy, provide insulation, and make up cell membranes.

Front

What are proteins made of?

Back

Proteins are made of amino acids linked together by peptide bonds.

Front

What is the function of enzymes?

Back

Enzymes act as catalysts to speed up chemical reactions in biological systems.