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Chemistry Of Life - Biochemistry
Test Description: Chapter 2
Instructions: Answer all questions to get your test result.
1) Which pH is the most basic
A
pH 1
B
pH 7
C
pH 12
D
pH 8
2) Carbon can form how many bonds with other elements?
A
4
B
1
C
2
D
3
3) Fatty acids and _______ make up lipids
A
glucose
B
glycerol
C
glycogen
D
gluserol
4) Equilibrium is when
A
reactants are all turned into products
B
products are all turned into reactants
C
chemical reactions happen
D
reactants and products are created in equal rates
5) exothermic reactions _________ energy
A
Hydrogen bonds
B
release / exit
C
absorb / enter
D
covalent bonds
6) Which of the following is a property of water BECAUSE of hydrogen bonding
A
water polarity
B
negative and positive regions
C
high specific heat
D
nonpolar areas
7) When water molecules stick to other water molecules it is called
A
polar
B
cohesion
C
adhesion
D
nonpolar
8) When water sticks to other substances (like your jacket) it is called
A
adhesion
B
polar
C
nonpolar
D
cohesion
9) a solution is a mixture of _________ and __________
A
solutions
B
solvents and solutes
C
sovlutes and soulents
D
lemonade and water
10) Amino acids are the monomers of
A
protein
B
carbohydrates
C
lipids
D
nucleic acids
11) when substances are changed into other substances by breaking forming bonds, it is a
A
chemical reaction
B
exothermic reaction
C
chemical equilibrium
D
hydrogen bond
12) enzymes are what macromolecule
A
proteins
B
carbohydrates
C
nucleic acids
D
lipids
13) if a chemical reaction is catalyzed it will ...
A
slow down a chemical reaction
B
do nothing
C
change the color
D
speed up a chemical reaction
14) Which macromolecule is MOST commonly found in a ring shape?
A
proteins
B
carbohydrates
C
nucleic acids
D
lipids
15) the activation of a reaction is decreased by a
A
catalyst
B
substrate
C
product
D
reactant
16) what is the place on the enzyme where the substrate binds?
A
active site
B
water
C
substrate
D
product
17) what 2 things can destroy/denature an enzyme?
A
ph and carbohydrates
B
proteins
C
temperature and size
D
temperature and pH
18) a chain of amino acids is called a
A
protein
B
nucleic acid
C
lipid
D
carbohydrates
19) the suffix -ose tells you it is what macromolecule
A
nucleic acids
B
lipid
C
protein
D
carbohydrate
20) ___________ are the building blocks of __________
A
active site , substrate
B
monomers , polymers
C
polymers , monomers
D
nucleic acids
*select an answer for all questions
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