Worksheets2.3 and 2.4 life review
Total questions: 13
Worksheet time: 7mins
Name
Class
Date
1.
A substance that cannot be broken down into simpler elements is a(n)
a)
particle
b)
compound
c)
element
d)
carb
2.
Why are enzymes important?
a)
they contain water
b)
they help the cell mature
c)
they have Dna
d)
they speed up chemical reactions
3.
Diffusion of water
a)
osmosis
b)
facilitate diffusion
c)
diffusion
d)
endocytosis
4.
Does not use energy to move materials through the cell
a)
passive transport
b)
active transport
5.
active transport
a)
does not need energy to move materials through the cell
b)
needs energy to move materials through the cell
6.
Protein transports
a)
help move materials from one side to the other
b)
help in DNA formation
7.
What happens when both sides of the cell membrane are the same during diffusion
a)
they keep moving until there are none left on one side
b)
they stop moving across the membrane
c)
they go first to one side and then the other
d)
they move all inside the cell
8.
passive transport
a)
high to low
b)
low to high
9.
active transport
a)
low to high
b)
high to low
10.
example of a nucleic acid
a)
DNA
b)
Proteins
c)
Carbohydrates
11.
Sugars and starches
a)
Proteins
b)
Carbohydrates
c)
Nucleic Acids
12.
oxygen moves through a cell membrane because of
a)
diffusion
b)
facilitated diffusion
c)
osmosis
13.
when two or more elements combine it is
a)
an element
b)
a compound
c)
a symbol
d)
elementi
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