PBS 2020 EOC & Unit 3 Test Review

Front

What is an infectious agent?

Back

An organism that can transmit disease from one individual to another.

Front

What are helminthes?

Back

A category of infectious agents that includes roundworms and can be transmitted through undercooked meat.

Front

What happens to cells in a 90% salt saline drip?

Back

Cells will shrivel and may die due to osmotic pressure.

Front

What is the function of peptidoglycan in bacteria?

Back

It is a component of the bacterial cell wall that helps maintain its structure and holds the stain during Gram staining.

Front

What is the outer covering of a bacterial cell called?

Back

The capsule.

Front

What is the role of the cell wall in bacteria?

Back

It provides structural support and protection to the bacterial cell.

Front

What are the main types of infectious agents?

Back

Bacteria, viruses, fungi, protozoans, and helminthes.

Front

How do bacteria reproduce?

Back

Bacteria reproduce asexually through a process called binary fission.

Front

What is the difference between Gram-positive and Gram-negative bacteria?

Back

Gram-positive bacteria have a thick peptidoglycan layer, while Gram-negative bacteria have a thin peptidoglycan layer and an outer membrane.

Front

What is a virus?

Back

A microscopic infectious agent that can only replicate inside the living cells of an organism.