Microbiology #1

What do viruses need to reproduce?

• they need genetic material
• They need a host cell
• They need  bacteria
• They need insulin

When a virus invades a living cell, its _______
takes over the cell's functions.

• outer coat
• genetic material
• core
• cytoplasm

What do viruses have in common with living cells? They both...

• store genetic information
• have chloroplasts
• use glucose for cellular respiration
• have endoplasmic reticulum

How could you describe the size of a virus?

• Smaller than bacteria
• Larger than a parasite
• About the size of a dime
• Smaller than a proton

Antibiotics kill viruses

• True
• False

A tiny non-living particle that invades and then multiplies inside of a living cell is called a:

• vaccine
• virus
• bacteriophage

A process by which bacteria reproduce asexually

• binary fission

• cellular respiration

• pasteurization

• decomposers

The three main shapes of bacteria are all of the following EXCEPT

• rod shaped (bacilli)
• spherical (cocci)
• octagon (octilli)
• spiral (spirilla)

All bacteria have DNA. 

• true
• false

Which is a distinguishing characteristic describing most parasitic diseases?

• They are often carried by insects or vectors.

• They are usually harmless diseases and seldom fatal.

• They are most often experienced in very dry climates.

• They are most often experienced in very wet climates.