Anatomy & Physiology Immune #11

Question

Which statement regarding bacteria requires clarification by the professor?

Answers

  1. Some bacteria are beneficial within the human body.
    • Rationale:

      Some bacteria is beneficial to the body; therefore, this statement does not require clarification by the professor.

  2. All bacteria are pathogenic within the human body.
    • Rationale:

      Some bacteria are pathogenic thereby leading to infection. In addition, bacteria can release toxins that are damaging to the tissues within the body; therefore, this statement requires clarification from the professor.

  3. Bacteria may appear as rods when viewed with a microscope.
    • Rationale:

      Some bacteria is shaped as rods when viewed under a microscope; therefore, this statement does not require clarification by the professor.

  4. Bacteria may appear as spirals when viewed with a microscope.
    • Rationale:

      Some bacteria is shaped as spirals when viewed under a microscope; therefore, this statement does not require clarification by the professor.

Overview

Bacteria is a member of a large group of unicellular microorganisms. These microorganisms have cell walls but lack organelles and an organized nucleus.

Explanation

Learning Outcomes

Bacteria can be either beneficial, or pathogenic, depending on the type that is found in the human body. They are shaped like rods, spheres, and spirals. In addition, bacteria is classified as either gram positive or gram negative. However, not all bacteria are pathogenic within the human body.

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