Biomolecules and Enzyme Test Review

Front

What is an enzyme?

Back

A protein that acts as a catalyst to speed up chemical reactions in biological processes.

Front

What is the active site of an enzyme?

Back

The specific region of an enzyme where substrate molecules bind and undergo a chemical reaction.

Front

How do enzymes lower activation energy?

Back

Enzymes provide an alternative reaction pathway with a lower activation energy, allowing reactions to occur more easily.

Front

What is substrate specificity?

Back

The ability of an enzyme to choose exact substrates from a group of similar chemical molecules.

Front

What are lipids?

Back

A diverse group of hydrophobic organic molecules, including fats, oils, and phospholipids, that are insoluble in water.

Front

What is the primary function of lipids in the body?

Back

To provide insulation, store energy, and form cell membranes.

Front

What is the structure of a phospholipid?

Back

A molecule consisting of a hydrophilic (water-attracting) 'head' and two hydrophobic (water-repelling) 'tails'.

Front

What is the role of nucleotides in genetics?

Back

Nucleotides are the building blocks of nucleic acids (DNA and RNA) and carry genetic information.

Front

What is the difference between DNA and RNA?

Back

DNA is double-stranded and stores genetic information, while RNA is single-stranded and plays a role in protein synthesis.

Front

What is a catalyst?

Back

A substance that increases the rate of a chemical reaction without being consumed in the process.