Unit 3: Bacteria and Viruses

Bacteria are prokaryotes which means they

• have a nucleus on their capsule
• do not contain a nucleus
• can live in environments with and without oxygen

A disease causing organism

• pathogen
• poison
• vaccine

Strep throat is caused by 

• bacteria
• virus

The flu is caused by

• bacteria
• virus

All bacteria are

• unicellular
• multicellular
• eukaryotic

Tags

NGSS.MS-LS1-1

How are bacterial cells different from the cells of eukaryotes?

• The bacteria are prokaryotes, and the genetic material is not contained in the nuclei.

• The bacteria are eukaryotes, and the genetic material is not contained in the nuclei.

• The bacteria are prokaryotes, and the genetic material is contained in the nuclei.

• The bacteria are eukaryotes, and the genetic material is contained in the nuclei.

Tags

NGSS.MS-LS4-2

Organisms that break down food large, complex chemicals in dead organisms into small, simple chemicals

• ribosomes

• flagelllum

• conjugation

• decomposers

Tags

NGSS.MS-LS2-3

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 statement is true about viruses?

• Viruses can eat and metabolize food.

• Viruses can reproduce only using a host cell.

• Viruses can reproduce on their own at any time.

• Viruses contain DNA, so they are alive.

One important way to control the spread of viruses in through

• the use of vaccines

• drinking a lot of tea

• the use of other types of bacteria

• the use of antibiotics