Biology Midterm Review 2023

Front

What are fats, oils, and waxes classified as?

Back

Lipids are organic molecules that include fats, oils, and waxes.

Front

Which macromolecule is primarily responsible for making up the cell membrane?

Back

Phospholipids are the main component of cell membranes.

Front

What type of organic molecule are enzymes, hemoglobin, and maltase?

Back

They are all classified as proteins.

Front

What is facilitated diffusion?

Back

Facilitated diffusion is a type of passive transport that uses proteins to help move substances across a cell membrane.

Front

What does homeostasis refer to in biological systems?

Back

Homeostasis is the process by which living organisms maintain a stable internal environment.

Front

What are the four main types of macromolecules in biology?

Back

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

Front

What is the primary function of carbohydrates in living organisms?

Back

Carbohydrates serve as a primary energy source and structural components.

Front

What role do proteins play in biological systems?

Back

Proteins serve as enzymes, structural components, and play roles in transport and signaling.

Front

What is the difference between active transport and passive transport?

Back

Active transport requires energy to move substances against their concentration gradient, while passive transport does not.

Front

What is osmosis?

Back

Osmosis is the diffusion of water across a selectively permeable membrane.