BIOD 171 Exam 1 : BIOD 171 Exam 1 Review: Questions & Answers/Latest Updated

BIOD 171 Exam 1 Study Guide: BIOD 171 Exam 1 Review: Questions &
Answers

1. What is the formal definition of microbiology?

A. The study of large organisms and ecosystems

B. The study of microbes and their biological processes

C. The study of chemical reactions in the atmosphere

D. The study of plant structures

• Correct Answer: B

• Rationale: Microbiology is defined as the study of microbes, which includes
both microorganisms and viruses, and their biological processes.

2. Which of the following is considered the smallest biological unit of life?

A. An atom

B. A molecule

C. A cell

D. A tissue

• Correct Answer: C

• Rationale: The sources identify a cell as the smallest biological unit of life.

3. What is a macromolecule?

A. A single atom

B. A small inorganic molecule

, C. A complex molecule composed of smaller subunits

D. A type of virus

• Correct Answer: C

• Rationale: A macromolecule is classified as a complex molecule that is built
up from smaller chemical structures known as subunits or monomers.

4. Which of the following is NOT one of the four main types of macromolecules?
A. Proteins

B. Nucleic Acids

C. Carbon Dioxide

D. Lipids

• Correct Answer: C

• Rationale: The four main types of macromolecules found in cells are
proteins, nucleic acids, lipids, and carbohydrates.

5. Which macromolecule can act as an enzyme to catalyze biochemical
processes?

A. Carbohydrates

B. Lipids

C. Nucleic Acids

D. Proteins

• Correct Answer: D