WorksheetsQ2 Science Final 2016-17: Ch 9.1 & 9.2
Total questions: 15
Worksheet time: 8mins
Name
Class
Date
1.
A __________ is a tiny, nonliving particle that invades and then multiplies inside a living cell.
a)
virus
b)
bacteria
c)
host
d)
parasite
2.
A __________ is a living thing that provides a source of energy for a virus or an organism.
a)
host
b)
parasite
c)
virus
d)
bacteria
3.
Viruses act like __________, organisms that live on or in a host and cause it harm.
a)
parasites
b)
hosts
c)
bacteria
d)
bacteriophage
4.
A ________ is a virus that infects bacteria. In fact, its name means "bacteria eater."
a)
bacteriophage
b)
vaccine
c)
host
d)
parasite
5.
A bacterial cell may also have a ________, a long, whiplike structure that helps a cell to move.
a)
flagellum
b)
binary fission
c)
Asexual reproduction
d)
conjugation
6.
Bacteria reproduce by a process called _________, in which one cell divides to form two identical cells.
a)
binary fission
b)
Asexual reproduction
c)
sexual reproduction
d)
conjugation
7.
____________ is a reproductive process that involves only one parent and produces offspring that are identical to the parent.
a)
Asexual reproducation
b)
binary fission
c)
sexual reproduction
d)
conjugation
8.
During a process called __________, one bacterium transfers some genetic material to another bacterium through a threadlike bridge.
a)
conjugation
b)
interpreting data
c)
parasitic conversion
d)
Warp 5
9.
A(n) ___________ is a small, rounded, thick-walled, resting cell that forms inside a bacterial cell.
a)
endospore
b)
virus
c)
bacteria
d)
host
10.
During ____________, the food is heated to a temperature that is high enough to kill most harmful bacteria without changing the taste of the food.
a)
pasteurization
b)
decomposers
c)
oxygen production
d)
binary fission
11.
These bacteria, which live in the soil, are __________; organisms that break down large chemicals in dead organisms into small chemicals.
a)
decomposers
b)
parasites
c)
viruses
d)
bacteriophage
12.
Bill Nye:
60% of your brain is made from _________.
60% of your brain is made from _________.
a)
fats
b)
proteins
c)
carbohydrates
d)
sodium
13.
Bill Nye:
How much saliva (spit) do you make in a single day?
How much saliva (spit) do you make in a single day?
a)
1 liter
b)
10 mililiters
c)
100 grams
14.
Bill Nye:
What are calories?
What are calories?
a)
A measure of heat energy in food
b)
An important nutrient
c)
Found in Earth's crust
15.
Bill Nye:
Used to build body tissues such as bone, muscle and blood.
Used to build body tissues such as bone, muscle and blood.
a)
Proteins
b)
Carbohydrates
c)
Fats
100 %
