Bacteria (JW)

Which shape describes some bacterial cells?

• cube-shaped

• bullet-shaped

• spiral

• robot-like

Tags

NGSS.MS-LS1-1

Endospores can form around bacteria during

• binary fission

• respiration

• sunlight hours

• harsh environmental conditions

Tags

NGSS.MS-LS1-5

What important role do bacteria called decomposers play?

• They return basic chemicals to the environment.

• They slow down food spoilage.

• They kill harmful bacteria.

• They produce vitamins.

Tags

NGSS.MS-LS2-3

NGSS.MS-LS2-4

Which of the following is NOT a role of bacteria that live in human bodies?

• digesting food

• competing for space with disease causing bacteria

• making vitamins

• fixing nitrogen

Tags

NGSS.MS-LS1-3

NGSS.MS-LS2-1

NGSS.MS-LS2-3

Binary fission is the bacterial process of

• asexual reproduction.

• obtaining food.

• producing energy.

• forming endospores.

Tags

NGSS.MS-LS3-2

Heterotrophic bacteria obtain food by

• capturing the sun's energy.

• using the energy from chemicals in their environment.

• consuming autotrophs and other heterotrophs.

• helping autotrophs make food.

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-3

The term "antibiotic resistant" refers to bacteria that

• are resistant to a vaccine.

• survive in the presence of an antibiotic.

• are weakened and destroyed by antibiotics.

• are dead or altered.

Tags

NGSS.MS-LS4-4

Many bacterial diseases can be cured using

• toxins

• endospores

• viruses

• antibiotics

All of the following slow down the growth of bacteria except for:

• disinfectants

• put in a warm dark place

• adding salt or vinegar

• refrigeration

Tags

NGSS.MS-LS1-5

Most bacteria are harmless or helpful?

• True

• False