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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
lactose
B
glucose
C
lactase
D
fructose
2) 2) The following molecule is best described as a ______. CH3—CH2—CH2—CH2
A
lipid
B
carbohydrate
C
protein
D
hydrocarbon
3) 3) A single carbon atom (atomic # 6) can form a maximum of ______ covalent bond(s).
A
1
B
4
C
2
D
3
4) 4) ______ is a hydroxyl group.
A
—OH
B
—H
C
—NH2
D
—COOH
5) In the following reaction, galactose is a ______. galactose + glucose → lactose + water
A
polysaccharide
B
monomer
C
protein
D
polymer
6) 6) What name is given to the following reaction? galactose + glucose → lactose + water
A
dehydration reaction
B
hydrogenation
C
hydrolysis
D
glycolysis
7) 7) What name is given to the following reaction? sucrose + water → glucose + fructose
A
dehydration reaction
B
denaturation
C
A) glucogenesis
D
hydrolysis
8) 8) Carbohydrates typically include ______.
A
C, H, and O atoms
B
a hydrocarbon chain
C
a PO4 group
D
an NH2 group
9) 9) Which of the following are isomers? (Same molecule, different structure)
A
glucose and maltose
B
lactose and maltose
C
sucrose and glucose
D
glucose and fructose
10) 10) Complete the equation: monosaccharide + monosaccharide → ______ + water
A
fat
B
disaccharide
C
polysaccharide
D
polypeptide
*select an answer for all questions
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