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Ch. 3 The Molecules Of Life
Test Description: Part 1 of 4
Instructions: Answer all questions to get your test result.
1) 1) People with lactose intolerance do not have enough ______.
A
lactase
B
lactose
C
fructose
D
glucose
2) 2) The following molecule is best described as a ______. CH3—CH2—CH2—CH2
A
carbohydrate
B
protein
C
hydrocarbon
D
lipid
3) 3) A single carbon atom (atomic # 6) can form a maximum of ______ covalent bond(s).
A
3
B
2
C
1
D
4
4) 4) ______ is a hydroxyl group.
A
—H
B
—OH
C
—NH2
D
—COOH
5) In the following reaction, galactose is a ______. galactose + glucose → lactose + water
A
polysaccharide
B
protein
C
polymer
D
monomer
6) 6) What name is given to the following reaction? galactose + glucose → lactose + water
A
hydrogenation
B
dehydration reaction
C
glycolysis
D
hydrolysis
7) 7) What name is given to the following reaction? sucrose + water → glucose + fructose
A
hydrolysis
B
dehydration reaction
C
A) glucogenesis
D
denaturation
8) 8) Carbohydrates typically include ______.
A
a PO4 group
B
C, H, and O atoms
C
a hydrocarbon chain
D
an NH2 group
9) 9) Which of the following are isomers? (Same molecule, different structure)
A
glucose and fructose
B
glucose and maltose
C
sucrose and glucose
D
lactose and maltose
10) 10) Complete the equation: monosaccharide + monosaccharide → ______ + water
A
polypeptide
B
polysaccharide
C
disaccharide
D
fat
*select an answer for all questions
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