Concept 1 - Viruses & Bacteria

What does invading the host cell enable the virus to do?

• increase its size
• synthesize needed oxygen
• obtain nutrients
• reproduce

Tags

NGSS.MS-LS1-2

What does a virus have on the inside?

• DNA, but never RNA
• RNA but never DNA
• DNA or RNA
• neither DNA or RNA

A tiny, nonliving particle that invades and then reproduces inside a living cell.

• host cell
• bacteria
• virus
• pathogen

Which BEST compares bacteria and viruses?

• bacteria are smaller than viruses
• bacteria cause disease, but viruses do not
• bacteria are living organisms, but viruses are not
• bacteria have genetic material, but viruses do not

Why are viruses considered to be nonliving organism?

• they do not have genetic information
• they are not able to move on their own
• they do not interact with their environment
• they are no able to reproduce without a host cell

Prokaryotes do not have a nucleus. Which of the following is an example of a prokaryote?

• Virus

• Plant

• Bacteria

• Fungi

T/F All bacteria are bad

• True

• False

Besides DNA or RNA, what else is a virus made of?

• a cell wall

• a cell membrane

• a protein coat

• a carbohydrate coat

Which of the following is true for both bacteria and viruses?

• both contain genetic material

• can be killed using antibiotics

• have a cell membrane

• have a protein coat

Which viral life cycle kills its host cell by lysing (bursting)?

• Lysogenic Cycle

• Lytic Cycle

• Binary Fission

• Conjugation