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Seventh Grade Viruses, Bacteria, Protists and Fungi Exam

Total questions: 50

Worksheet time: 3hrs 30mins

Name
Class
Date
1.

____ are tiny, nonliving particles that invade and then takes over the cell’s function to multiple inside a living cell.

a)

viruses

b)

bacteria

c)

protists

d)

fungi

2.

A ___ is a substance introduced into the body to stimulate the production of antibodies that destroy specific disease-causing viruses and organisms.

a)

bacteriophage

b)

vaccine

c)

endospore

d)

autotroph

3.

A ___ is a living thing on which a parasite lives.

a)

endospore

b)

bacteriophage

c)

vaccine

d)

host

4.

Which of the following diseases does not have a vaccination to prevent it because it is caused by a bacterium?

a)

polio

b)

measles

c)

chicken pox

d)

strep throat

5.

A ___ is a “bacteria-eater” that is a robot-like virus that infects bacteria.

a)

endospore

b)

bacteriophage

c)

vaccine

d)

nitrogen-fixing

6.

A cell that is invaded by a virus will make ___.

a)

more viruses

b)

bacteria

c)

decomposers

d)

protists

7.

When Leeuwenhoek saw the first bacterium, he was looking at ___ under the microscope he created.

a)

soil

b)

teeth plaque

c)

pond water

d)

botulism

8.

What does Clostridium botulism cause?

a)

a cold

b)

food poisoning

c)

strep throat

d)

malarai

9.

Endospores can resist __.

a)

freezing

b)

heating

c)

drying

d)

all of these

e)

none of these

10.

Bacteria are ___ which means their genetic material in their cells is not contained is not contained in a membrane-bound nucleus.

a)

prokaryotic

b)

eukaryotic

c)

anaerobic

d)

aerobic

11.

Most bacteria have a ___.

a)

nucleus

b)

mitochondria

c)

Golgi bodies

d)

cell wall

12.

___ is a small, rounded thick-walled, resting cell that forms inside a bacterial cell enabling the bacteria to survive harsh, unfavorable conditions.

a)

heterotroph

b)

endospore

c)

autotroph

d)

hidden virus

13.

___ is the region inside the cell membrane found in both prokaryotic and eukayotic cells.

a)

cell wall

b)

endoplasmic reticulum

c)

cytoplasm

d)

mitochondria

14.

___ is the process by which one bacterium transfers some genetic material to another bacterium through a thread-like bridge.

a)

binary fission

b)

conjugation

c)

vaccination

d)

parasitism

15.

A ___ is a whip-like structure to help the bacteria move.

a)

cilium

b)

pseudopod

c)

flagellum

d)

endospore

16.

Conjugation does not increase the number of bacteria, does result in bacteria that are ___ different.

a)

genetically

b)

energetically

c)

chemically

d)

mechanically

17.

___ reproduction occurs between two parents that combine their genetic material to produce a new organism.

a)

asexual

b)

sexual

c)

anaerobic

d)

aerobic

18.

___ reproduction involves only one parent in the process of producing offspring which are identical to the parent.

a)

asexual

b)

sexual

c)

anaerobic

d)

aerobic

19.

Some bacteria die if oxygen is present in their surroundings; therefore, they are ___ which means without oxygen.

a)

asexual

b)

sexual

c)

anaerobic

d)

aerobic

20.

___ bacteria need oxygen to break down their food.

a)

asexual

b)

sexual

c)

anaerobic

d)

aerobic

21.

Organisms that break down food in the process of respiration are ___.

a)

autotrophic

b)

photosynthetic

c)

heterotrophic

d)

prokaryotic

22.

___ make their own food by the process of photosynthesis or by absorbing chemicals in their environment.

a)

autotrophic

b)

anaerobic

c)

heterotrophic

d)

eukaryotic

23.

Which of these are shapes of bacteria?

a)

round

b)

rod

c)

spiral

d)

all of these

e)

none of these

24.

A term that means “same life” is a close relationship in which at least one of the organisms benefits is called___.

a)

parasitism

b)

symbiosis

c)

nitrogen-fixing

d)

sarcodine

25.

Autotrophic bacteria use the sun’s energy to produce food and then they release ___ into the air.

a)

nitrogen

b)

hydrogen

c)

oxygen

d)

carbon dioxide

26.

___ is a method of prolonging the shelf-life of food by heating the food to a temperature that is high enough to kill harmful bacteria without changing the taste of the food.

a)

decomposition

b)

pastuerization

c)

conjugation

d)

binary fission

27.

The man who invented the method of heating food to prolonging the shelf-life was ___.

a)

Gregor Mendel

b)

Anton van Leeuwenhoek

c)

Louis Pasteur

d)

Robert Hooke

28.

__ are protozoans that use long, whip-like flagella to move.

a)

flagellates

b)

sarcodines

c)

ciliates

d)

amoeba

29.

Heterotrophic bacteria that live in the soil are ___ that recycle organic substances for plants to use.

a)

pasteurizers

b)

decomposers

c)

parasites

d)

hosts

30.

___ bacteria live in the soil and in nodules on the roots of certain plants called legumes.

a)

Oxygen-fixing

b)

Hydrogen-fixing

c)

Nitrogen-fixing

d)

Carbon-fixing

31.

___ are eukaryotes that cannot be classified as animals, plants or fungi.

a)

Bacteria

b)

Viruses

c)

Protists

d)

Mushrooms

32.

___ cells are cells that have a membrane-bound nucleus .

a)

Eukaryotic

b)

Prokaryotic

c)

Aerobic

d)

Anaerobic

33.

___ are animal-like protists in that they are heterotrophic, but they are unicellular.

a)

Slime molds

b)

Mushrooms

c)

Mold

d)

Protozoans

34.

__ are protozoans with pseudopods.

a)

Paramecium

b)

Sarcodines

c)

Euglenoids

d)

Dinoflagellates

35.

Plant-like protists are called _.

a)

algae

b)

protozoans

c)

ciliates

d)

flagellates

36.

Unicellular golden algae that have a silicon dioxide covering are _

a)

dinoflagellates

b)

euglenoids

c)

red algae

d)

diatoms

37.

___ are unicellular algae that are found mostly in fresh water and can be heterotrophic when little sunlight is available, but are autotrophic when in the presence of sunlight.

a)

diatoms

b)

euglenoids

c)

paramecia

d)

amoebas

38.

Algae are important because they provide _ to our atmosphere when they photosynthesize.

a)

nitrogen

b)

carbon dioxide

c)

oxygen

d)

helium

39.

Chlorophyll is _ pigment.

a)

green

b)

brown

c)

yellow

d)

red

40.

Which of the algae can be multicellular and grow several meters tall?

a)

green

b)

brown

c)

yellow

d)

red

41.

Which of the following is NOT a fungus-like protist?

a)

slime mold

b)

downy mildew

c)

water mold

d)

mushrooms

42.

Fungus-like protist that contains amoeba-like cells that join together to form a jelly-like mass that oozes to move is _.

a)

slime mold

b)

water mold

c)

downy mildew

d)

athlete's foot

43.

The Irish potato famine was caused by a _.

a)

slime mold

b)

water mold

c)

downy mildew

d)

athlete's foot

44.

Heterotrophic organisms that have cell walls and use spores to reproduce asexually are _

a)

viruses

b)

protists

c)

bacteria

d)

fungi

45.

Bacteria and fungi serve the ecological community by _.

a)

providing nitrogen for the atmosphere

b)

decomposing dead plants and animals

c)

making food through photosynthesis

d)

keeping pest control people in business

46.

The fungus that can grow between your toes is _.

a)

slime mold

b)

water mold

c)

downy mildew

d)

athlete's foot

47.

Ringworm is a _ that grows in a circular pattern.

a)

slime mold

b)

smut

c)

rust

d)

fungus

48.

The mutualistic relationship between an alga and a fungus to break up rock into soil is _

a)

slime mold

b)

lichen

c)

water mold

d)

smut

49.

Currently no cure for disease caused by these___.

a)

bacteria

b)

viruses

c)

hosts

d)

fungi

50.

Bacteria that die in the presence of oxygen are called __.

a)

anaerobic

b)

aerobic

c)

autotrophic

d)

heterotrophic