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Biology Chapter 5
Test Description: More detailed review of chapter 5: Molecules of Life
Instructions: Answer all questions to get your test result.
1) An organic molecule is based on ____, while hydrocarbons are organisms that must also have _____
A
nitrogen, oxygen
B
carbon, hydrogen
C
oxygen, nitrogen
D
hydrogen, carbon
2) Which of the 4 main functional groups below is used for electron bonding?
A
amino group
B
carboxyl group
C
hydroxyl group
D
carbonyl group
3) A carbohydrate is not --
A
ring-shaped
B
inorganic
C
hydrophilic
D
have a base of CH2O
4) Which of the below is not a polysaccharide?
A
glycogen
B
starch
C
glucose
D
cellulose
5) A fat molecule is made of ___ and 3 ___ acids
A
glycerol, fatty
B
glycogen, fatty
C
glycerol, citric
D
glycogen, citric
6) A steroid molecule functions --
A
to cushion
B
to insulate
C
to store energy
D
as chemical messengers
7) Proteins are made of _____, which are made of ______
A
polypeptides, amino acids
B
amino acids, polypeptides
C
denaturation, polypeptides
D
denaturation, amino acids
8) Amino acids are not made of --
A
a side group with unique chemical properties
B
polypeptides
C
an amino group
D
a carboxyl group
9) _____ speed up chemical reactions by lowering activation energy, like their biological counterparts, _______
A
substrates, amino acids
B
catalysts, enzymes
C
proteins, steroids
D
enzymes, catalysts
10) Which helps build polymer chains?
A
Denaturation
B
Hydrolysis reaction
C
Condensation reaction
D
Dehydration reaction
*select an answer for all questions
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