Fall Biology Exam Review

Front

What type of feedback mechanism is demonstrated when the body cools down through sweating during exercise?

Back

Negative feedback.

Front

What type of bond connects two amino acids?

Back

Peptide bond.

Front

What is the role of cholesterol in the cell membrane?

Back

Cholesterol helps to stabilize the structure of the cell membrane.

Front

What is a chromosome?

Back

A chromosome is a structure within cells that contains DNA and genetic information.

Front

What is the function of a chloroplast in a plant cell?

Back

Chloroplasts make food through the process of photosynthesis.

Front

What is the primary function of the mitochondria?

Back

Mitochondria produce energy for the cell through cellular respiration.

Front

Define covalent bond.

Back

A covalent bond is a chemical bond formed by the sharing of electrons between atoms.

Front

What is the function of the nucleus in a cell?

Back

The nucleus directs cell activities and contains genetic material.

Front

What is the structure of a phospholipid bilayer?

Back

A phospholipid bilayer consists of two layers of phospholipids with hydrophilic heads facing outward and hydrophobic tails facing inward.

Front

What is the difference between integral and peripheral proteins?

Back

Integral proteins span the membrane, while peripheral proteins are attached to the surface of the membrane.