Staar Biology Review 2

Front

What is the primary function of proteins in biological systems?

Back

Proteins serve various functions including acting as enzymes to catalyze chemical reactions, providing structural support, facilitating cell signaling, and playing a role in immune responses.

Front

Which biomolecule is primarily responsible for energy conversion during cellular respiration?

Back

The energy in the bonds of glucose molecules is transferred to the phosphate bonds in ATP during cellular respiration.

Front

What are nucleotides?

Back

Nucleotides are the building blocks of nucleic acids, such as DNA and RNA.

Front

What biomolecule is essential for making up cell membranes and hormones?

Back

Lipids are the biomolecules that make up cell membranes and hormones.

Front

What common elements are found in all biomolecules?

Back

All biomolecules (lipids, proteins, nucleic acids, carbohydrates) contain carbon, hydrogen, and oxygen.

Front

What is the role of enzymes in biological reactions?

Back

Enzymes act as catalysts that speed up chemical reactions without being consumed in the process.

Front

Define cellular respiration.

Back

Cellular respiration is the process by which cells convert glucose and oxygen into energy (ATP), carbon dioxide, and water.

Front

What are the two main types of nucleic acids?

Back

The two main types of nucleic acids are DNA (deoxyribonucleic acid) and RNA (ribonucleic acid).

Front

What is the function of lipids in the body?

Back

Lipids serve as a source of long-term energy storage, form cell membranes, and act as signaling molecules.

Front

What is the difference between saturated and unsaturated fats?

Back

Saturated fats have no double bonds between carbon atoms, while unsaturated fats contain one or more double bonds.