Biology Midterm Review

Front

What is a bacterial cell characterized by?

Back

A bacterial cell is characterized by the presence of a cell wall and cell membrane but lacks a nucleus.

Front

What is active transport?

Back

Active transport is the movement of molecules against a concentration gradient, requiring energy.

Front

How does passive transport differ from active transport?

Back

Active transport requires energy, while passive transport occurs without energy.

Front

What role do enzymes play in biological processes?

Back

Enzymes control the rate at which food is broken down to release energy.

Front

How does the shape of an enzyme affect its function?

Back

The shape of an enzyme determines the specific reaction it will catalyze.

Front

What is the function of a cell wall?

Back

The cell wall provides structure and protection to the cell, particularly in plant and bacterial cells.

Front

What is the primary difference between plant and animal cells?

Back

Plant cells have a cell wall and chloroplasts, while animal cells do not.

Front

What is diffusion?

Back

Diffusion is the movement of molecules from an area of higher concentration to an area of lower concentration.

Front

What is osmosis?

Back

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

Front

What are hormones?

Back

Hormones are chemical messengers that regulate various functions in the body.