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