CP Biology First Semester Exam Review 2024

Front

What is simple diffusion?

Back

Simple diffusion is the movement of molecules from an area of higher concentration to an area of lower concentration without the use of energy or transport proteins.

Front

What does it mean for a cell membrane to be selectively permeable?

Back

A selectively permeable membrane allows certain molecules to pass through while blocking others, thus regulating what enters and leaves the cell.

Front

What is a competitive inhibitor?

Back

A competitive inhibitor is a molecule that competes with the substrate for binding to the active site of an enzyme, thereby reducing the enzyme's activity.

Front

Identify the monomer of proteins.

Back

The monomer of proteins is an amino acid.

Front

When does fermentation occur?

Back

Fermentation occurs when oxygen is not available for cellular respiration.

Front

What is facilitated diffusion?

Back

Facilitated diffusion is the process of transporting molecules across a membrane via protein channels, from an area of higher concentration to an area of lower concentration, without energy.

Front

Define active transport.

Back

Active transport is the movement of molecules across a cell membrane from a region of lower concentration to a region of higher concentration, using energy (ATP) and transport proteins.

Front

What is the role of the cell membrane?

Back

The cell membrane protects the cell, provides structure, and regulates the movement of substances in and out of the cell.

Front

What is a monosaccharide?

Back

A monosaccharide is the simplest form of carbohydrates, consisting of a single sugar molecule, such as glucose or fructose.

Front

What is a nucleotide?

Back

A nucleotide is the basic building block of nucleic acids (DNA and RNA), consisting of a sugar, a phosphate group, and a nitrogenous base.