KE REVIEW~ MODULE 1

Front

What are the four major types of biomolecules?

Back

Carbohydrates, proteins, lipids, and nucleic acids.

Front

What is the role of enzymes in biological processes?

Back

Enzymes are protein molecules that act as biological catalysts.

Front

Why is water important for aquatic organisms in cold climates?

Back

Water as a solid has a lower density than as a liquid.

Front

What process allows glucose to move through a cell membrane without energy?

Back

Facilitated diffusion.

Front

What is the difference between passive transport and active transport?

Back

Passive transport does not require energy, but active transport does.

Front

Define carbohydrates.

Back

Carbohydrates are biomolecules made of carbon, hydrogen, and oxygen, serving as a primary energy source.

Front

What are lipids and their primary function?

Back

Lipids are hydrophobic biomolecules that store energy and make up cell membranes.

Front

What are proteins made of?

Back

Proteins are made of amino acids and perform various functions including catalyzing reactions and providing structure.

Front

What are nucleic acids and their role?

Back

Nucleic acids, such as DNA and RNA, store and transmit genetic information.

Front

Explain the concept of selective permeability in cell membranes.

Back

Selective permeability means that cell membranes allow certain substances to pass while blocking others.