WorksheetsThe Chemical Basis for Life
Total questions: 10
Worksheet time: 11mins
Name
Class
Date
1.
What is the purpose of an enzyme?
a)
give permission for the reaction
b)
raise activation energy
c)
speed up reactions
d)
control how many reactions occur
2.
What is a substance called if it speeds up a chemical reaction?
a)
reusable
b)
catalyst
c)
specific
d)
fragile
3.
Which of the following statements about enzymes is NOT true?
a)
enzymes are reusable
b)
enzymes work best at specific pH and temperatures
c)
enzymes are lipids
d)
enzymes are proteins
4.
These are called the "quick energy" foods
a)
carbohydrates/sugars
b)
protein
c)
fats/lipids
d)
nucleic acids
5.
Which is not a use or function of protein?
a)
forms enzymes and hormones
b)
forms transport channel in cell membrane
c)
forms structural proteins in the body
d)
quick energy
6.
__________ are nucleic acid functions
a)
store & transfer genetic info
b)
store & create energy
c)
structure & energy for cells
d)
membrane structure and nutrient transfer
7.
What type of carbohydrate is this?
a)
polysaccharide
b)
disaccharide
c)
monosaccharide
d)
it isn't a carbohydrate
8.
Which macromolecule is shown?
View Figure 1 (if not visible)
View Figure 1 (if not visible)
a)
lipid
b)
protein
c)
nucleic acid
d)
carbohydrate
9.
Carbohydrates are made of...
a)
C H O
b)
C H O N
c)
C H O N P
d)
C H O N S
10.
Which of the following is LEAST likely to dissolve in water?
a)
nonpolar fats and oils
b)
polar sugar molecules
c)
salt made of a positive sodium ion and a negative chloride ion
d)
all of the substances will dissolve easily in water
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