Bacteria and Viruses

Bacteria are found in which of the following places?

• In digestive system

• In the air

• In soil

• In all of the above

Which structure does bacteria NOT have?

• Cell membrane

• Chromosome

• Golgi apparatus

• Capsule

A small circular strand of DNA found in bacteria is called a

• Conjugate

• Peptidoglycan

• Plasmid

• Ribosome

Which of the following structures do all bacteria have?

• Capsule

• Cell wall

• Nucleus

• Cell membrane

Which structure protects bacteria from drying out?

• Capsule

• Conjugate

• Plasmid

• Peptidoglycan

What might limit the growth rate of bacteria?

• Lack of food

• Lack of moisture

• Lack of oxygen

• All of the above

Tags

NGSS.MS-LS1-5

NGSS.MS-LS2-1

To escape poor conditions such as extreme heat or cold, some bacteria form

• Blobs

• Capsules

• Capsids

• Endospores

Tags

NGSS.MS-LS1-5

NGSS.MS-LS4-4

Which of the following is NOT a beneficial role of bacteria in the environment?

• Decomposing wastes

• Developing resistance to antibiotics

• Fixing nitrogen in soil

• Aiding digestion

Tags

NGSS.MS-LS2-3

Bacteria can share plasmids with other bacteria through a process called

• Binary fission

• Conjugation

• Latent sharing

• Aiding digestion

The human body is known to have trillions of bacterial cells

• True

• False

Tags

NGSS.MS-LS1-1