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WorksheetsSeventh Grade Viruses, Bacteria, Protists and Fungi Exam
Total questions: 50
Worksheet time: 3hrs 30mins
____ are tiny, nonliving particles that invade and then takes over the cell’s function to multiple inside a living cell.
viruses
bacteria
protists
fungi
A ___ is a substance introduced into the body to stimulate the production of antibodies that destroy specific disease-causing viruses and organisms.
bacteriophage
vaccine
endospore
autotroph
A ___ is a living thing on which a parasite lives.
endospore
bacteriophage
vaccine
host
Which of the following diseases does not have a vaccination to prevent it because it is caused by a bacterium?
polio
measles
chicken pox
strep throat
A ___ is a “bacteria-eater” that is a robot-like virus that infects bacteria.
endospore
bacteriophage
vaccine
nitrogen-fixing
A cell that is invaded by a virus will make ___.
more viruses
bacteria
decomposers
protists
When Leeuwenhoek saw the first bacterium, he was looking at ___ under the microscope he created.
soil
teeth plaque
pond water
botulism
What does Clostridium botulism cause?
a cold
food poisoning
strep throat
malarai
Endospores can resist __.
freezing
heating
drying
all of these
none of these
Bacteria are ___ which means their genetic material in their cells is not contained is not contained in a membrane-bound nucleus.
prokaryotic
eukaryotic
anaerobic
aerobic
Most bacteria have a ___.
nucleus
mitochondria
Golgi bodies
cell wall
___ is a small, rounded thick-walled, resting cell that forms inside a bacterial cell enabling the bacteria to survive harsh, unfavorable conditions.
heterotroph
endospore
autotroph
hidden virus
___ is the region inside the cell membrane found in both prokaryotic and eukayotic cells.
cell wall
endoplasmic reticulum
cytoplasm
mitochondria
___ is the process by which one bacterium transfers some genetic material to another bacterium through a thread-like bridge.
binary fission
conjugation
vaccination
parasitism
A ___ is a whip-like structure to help the bacteria move.
cilium
pseudopod
flagellum
endospore
Conjugation does not increase the number of bacteria, does result in bacteria that are ___ different.
genetically
energetically
chemically
mechanically
___ reproduction occurs between two parents that combine their genetic material to produce a new organism.
asexual
sexual
anaerobic
aerobic
___ reproduction involves only one parent in the process of producing offspring which are identical to the parent.
asexual
sexual
anaerobic
aerobic
Some bacteria die if oxygen is present in their surroundings; therefore, they are ___ which means without oxygen.
asexual
sexual
anaerobic
aerobic
___ bacteria need oxygen to break down their food.
asexual
sexual
anaerobic
aerobic
Organisms that break down food in the process of respiration are ___.
autotrophic
photosynthetic
heterotrophic
prokaryotic
___ make their own food by the process of photosynthesis or by absorbing chemicals in their environment.
autotrophic
anaerobic
heterotrophic
eukaryotic
Which of these are shapes of bacteria?
round
rod
spiral
all of these
none of these
A term that means “same life” is a close relationship in which at least one of the organisms benefits is called___.
parasitism
symbiosis
nitrogen-fixing
sarcodine
Autotrophic bacteria use the sun’s energy to produce food and then they release ___ into the air.
nitrogen
hydrogen
oxygen
carbon dioxide
___ 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.
decomposition
pastuerization
conjugation
binary fission
The man who invented the method of heating food to prolonging the shelf-life was ___.
Gregor Mendel
Anton van Leeuwenhoek
Louis Pasteur
Robert Hooke
__ are protozoans that use long, whip-like flagella to move.
flagellates
sarcodines
ciliates
amoeba
Heterotrophic bacteria that live in the soil are ___ that recycle organic substances for plants to use.
pasteurizers
decomposers
parasites
hosts
___ bacteria live in the soil and in nodules on the roots of certain plants called legumes.
Oxygen-fixing
Hydrogen-fixing
Nitrogen-fixing
Carbon-fixing
___ are eukaryotes that cannot be classified as animals, plants or fungi.
Bacteria
Viruses
Protists
Mushrooms
___ cells are cells that have a membrane-bound nucleus .
Eukaryotic
Prokaryotic
Aerobic
Anaerobic
___ are animal-like protists in that they are heterotrophic, but they are unicellular.
Slime molds
Mushrooms
Mold
Protozoans
__ are protozoans with pseudopods.
Paramecium
Sarcodines
Euglenoids
Dinoflagellates
Plant-like protists are called _.
algae
protozoans
ciliates
flagellates
Unicellular golden algae that have a silicon dioxide covering are _
dinoflagellates
euglenoids
red algae
diatoms
___ 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.
diatoms
euglenoids
paramecia
amoebas
Algae are important because they provide _ to our atmosphere when they photosynthesize.
nitrogen
carbon dioxide
oxygen
helium
Chlorophyll is _ pigment.
green
brown
yellow
red
Which of the algae can be multicellular and grow several meters tall?
green
brown
yellow
red
Which of the following is NOT a fungus-like protist?
slime mold
downy mildew
water mold
mushrooms
Fungus-like protist that contains amoeba-like cells that join together to form a jelly-like mass that oozes to move is _.
slime mold
water mold
downy mildew
athlete's foot
The Irish potato famine was caused by a _.
slime mold
water mold
downy mildew
athlete's foot
Heterotrophic organisms that have cell walls and use spores to reproduce asexually are _
viruses
protists
bacteria
fungi
Bacteria and fungi serve the ecological community by _.
providing nitrogen for the atmosphere
decomposing dead plants and animals
making food through photosynthesis
keeping pest control people in business
The fungus that can grow between your toes is _.
slime mold
water mold
downy mildew
athlete's foot
Ringworm is a _ that grows in a circular pattern.
slime mold
smut
rust
fungus
The mutualistic relationship between an alga and a fungus to break up rock into soil is _
slime mold
lichen
water mold
smut
Currently no cure for disease caused by these___.
bacteria
viruses
hosts
fungi
Bacteria that die in the presence of oxygen are called __.
anaerobic
aerobic
autotrophic
heterotrophic
