Free Printable LS Chapter 7 Review

1.

Antiviral medicines work using which method?

a)

killing the host

b)

curing symptoms

c)

destroying the virus

d)

preventing the virus from entering the cell

2.

Which of the following does NOT protect you from viruses?

a)

Antibiotics

b)

Acquired immunity

c)

Natural Immunity

d)

Antibodies

3.

An antibiotic is a drug used to kill ____.

a)

bacteria

b)

cyanobacteria

c)

latent viruses

d)

viruses

4.

Which of the following is NOT a method to prevent the spread of viral diseases?

a)

Limit contact with an infected human

b)

Cover your mouth when you sneeze

c)

Share cups

d)

Practice good hygiene

5.

Peanuts and peas contain nitrogen-fixing bacteria in growths called ____.

a)

Nodules

b)

Colonies

c)

Filaments

d)

Chains

6.

Of the following, where are archaea likely to be found?

a)

hot springs

b)

dental plaque

c)

freshwater ponds

d)

cattle intestines

7.

What happens when a virus enters a host cell?

a)

It is continuously active

b)

It stays dormant in the cell for months

c)

It is sometimes active and sometimes latent

d)

It is latent and dormant for equal amounts of time

8.

Which of the following is a beneficial use of viruses?

a)

Gene transfer

b)

Rabies

c)

Immunity

d)

Pathogens

9.

Thick walls produced by some bacterial pathogens are called ____.

a)

Endospores

b)

Saprophytes

c)

Antibiotics

d)

Nitrogen-fixing

10.

Which of the following is a means for bacteria to enter your body?

a)

through the food you eat

b)

through a cut

c)

in the air you breathe

d)

all of the above

11.

Which of the following is NOT a shape common to viruses?

a)

square

b)

cylinder

c)

crystal

d)

sphere

12.

Bacteria that live in places with a supply of oxygen are ____.

a)

anaerobic

b)

aerobes

c)

viruses

d)

capsules

13.

What is the purpose of the pili on the surface of bacteria?

a)

encourages reproduction

b)

protects bacterium from other bacteria

c)

helps bacteria stick to surfaces

d)

allow the bacteria to move

14.

Harmful bacteria in food can be killed by ____.

a)

sunlight

b)

cold

c)

heat

d)

all of the above

15.

Which of the following is not caused by a virus?

a)

chicken pox

b)

tuberculosis

c)

mumps

d)

measles

16.

Viruses can infect all of the following except

a)

animals

b)

humans

c)

water

d)

plants

17.

Which element or compound do organisms use to make proteins?

a)

phosphorus

b)

nitrogen

c)

cellulose

d)

sugar

18.

Which element can some plants obtain from bacteria?

a)

phosphorus

b)

carbon

c)

nitrogen

d)

oxygen

19.

What does the flagellum of a bacteria do?

a)

contain DNA

b)

protect bacterium from drying out

c)

help bacteria stick to surfaces

d)

allow the bacteria to move

20.

How many stomach sections do cows have?

a)

1

b)

2

c)

3

d)

4

21.

Which of the following is NOT a method used by bacteria to obtain food?

a)

feed on dead organisms

b)

use light energy and make food

c)

use energy from chemical reactions to make food

d)

grow and harvest food

22.

What is the purpose of the capsule on bacteria?

a)

allow the bacteria to move

b)

protects bacterium from drying out

c)

helps bacteria stick to surface

d)

contain DNA

23.

Bacteria are responsible for all of the following in humans except ________.

a)

making vitamin K

b)

breaking food into smaller particles

c)

digesting uranium

d)

preventing harmful bacteria from growing

24.

Bacteria are used to make all of the following foods except ________.

a)

yogurt

b)

cheese

c)

pickles

d)

apples

25.

Which of the following is NOT a food that is usually pasteurized?

a)

milk

b)

fresh fruit

c)

ice cream

d)

fruit juice

LS Chapter 7 Review

Total questions: 25

Worksheet time: 13mins

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