PMA 2 Day 2 Review 24-25

Front

What is a nucleotide?

Back

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

Front

What is the structure of a protein like ovalbumin?

Back

Ovalbumin is a protein that has a chain of amino acids folded and twisted into a specific three-dimensional shape.

Front

How do enzymes affect chemical reactions?

Back

Enzymes decrease the activation energy required for a reaction to occur, thus speeding up the reaction.

Front

What role do proteins play in chemical reactions?

Back

Proteins act as catalysts, speeding up the rate of chemical reactions in biological processes.

Front

What is the function of nucleic acids?

Back

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

Front

What are the four main types of macromolecules?

Back

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

Front

What is the primary function of carbohydrates?

Back

Carbohydrates primarily serve as a source of energy for the body.

Front

What are amino acids?

Back

Amino acids are the building blocks of proteins, consisting of an amino group, a carboxyl group, and a unique side chain.

Front

What is the role of lipids in the cell membrane?

Back

Lipids compose the majority of the cell membrane, providing structure and regulating the movement of substances in and out of the cell.

Front

What is activation energy?

Back

Activation energy is the minimum energy required for a chemical reaction to occur.