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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
covalent
B
ionic
C
peptide
D
hydrogen
2) Which type of bond holds hydrogen and oxygen atoms together within a water molecule?
A
peptide
B
ionic
C
covalent
D
hydrogen
3) Which of the following are monomers of proteins?
A
monosaccharides
B
fatty acids
C
nucleotides
D
amino acids
4) Which macromolecules contains C, H, and O in a 1:2:1 ratio?
A
carbohydrates
B
nucleic acids
C
lipids
D
proteins
5) All organic molecules contain this element.
A
sodium
B
carbon
C
nitrogen
D
calcium
6) Which organic molecules are monomers of lipids?
A
amino acids
B
fatty acids
C
nucleotides
D
monosaccharides
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
less than 7
B
more than 7
C
equal to 7
D
between 7 and 10
9) What happens to the enzyme catalase when its heated?
A
It speeds up the reaction of breaking down hydrogen peroxide
B
It becomes denatured and no longer can break down hydrogen peroxide
C
It has no effect on catalase
D
It slows down the reaction of breaking down hydrogen peroxide
10) Which of the following are monomers of nucleic acids?
A
monosaccharides
B
fatty acids
C
nucleotides
D
amino acids
*select an answer for all questions
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