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Biology
Test Description: Biochemistry Review
Instructions: Answer all questions to get your test result.
1) Which type of bond is found between water molecules?
A
hydrogen
B
peptide
C
covalent
D
ionic
2) Which type of bond holds hydrogen and oxygen atoms together within a water molecule?
A
ionic
B
hydrogen
C
peptide
D
covalent
3) Which of the following are monomers of proteins?
A
nucleotides
B
monosaccharides
C
amino acids
D
fatty acids
4) Which macromolecules contains C, H, and O in a 1:2:1 ratio?
A
carbohydrates
B
lipids
C
nucleic acids
D
proteins
5) All organic molecules contain this element.
A
calcium
B
sodium
C
carbon
D
nitrogen
6) Which organic molecules are monomers of lipids?
A
fatty acids
B
amino acids
C
monosaccharides
D
nucleotides
7) Which of the following is false about enzymes?
A
Enzymes are sensitive to pH and temperature changes
B
Enzymes are used up during a single reaction.
C
Enzymes speed up chemical reactions by lowering activation energy
D
Enzymes can be used over and over to do a chemical reaction
8) Acids have a pH that is
A
equal to 7
B
less than 7
C
more than 7
D
between 7 and 10
9) What happens to the enzyme catalase when its heated?
A
It has no effect on catalase
B
It becomes denatured and no longer can break down hydrogen peroxide
C
It speeds up the reaction of breaking down hydrogen peroxide
D
It slows down the reaction of breaking down hydrogen peroxide
10) Which of the following are monomers of nucleic acids?
A
amino acids
B
nucleotides
C
fatty acids
D
monosaccharides
*select an answer for all questions
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