Anatomy & Physiology Immune #13

Question

Which statement regarding viruses requires clarification from the professor?

Answers

  1. Viruses have a protein coat.
    • Rationale:

      Viruses do have protein coats; therefore, this statement does not require clarification from the professor.

  2. Viruses are smaller than bacteria.
    • Rationale:

      Viruses are smaller than bacteria; therefore, this statement does not require clarification from the professor.

  3. Viruses have an outer coating that contains viral enzymes.
    • Rationale:

      Viruses do have an outer coating; however, this coating contains lipids, not enzymes. Therefore, this statement requires clarification from the professor.

  4. Viruses have RNA, DNA and long molecules in its genetic composition.
    • Rationale:

      The genetic composition of a virus is DNA, RNA, and long molecules; therefore, this statement does not require clarification from the professor.

Overview

Viruses are much smaller than bacteria. Their genetic composition is DNA, RNA, and long molecules.

Explanation

Learning Outcomes

A virus is a submicroscopic infectious agent. It is only capable of replication inside living organisms. Viruses have an outer coating that contains lipids, not enzymes.

Test Taking Tip

Ask yourself if each statement is true or false. The false statement requires clarification; therefore, this is the correct answer choice for this question!

Video Rationale