Download Test #4: Biomolecule Foldable

Test #4: Biomolecule Foldable
Some questions (c) 2015 by Region 10 Educational Service Center.
Some questions (c) 2015 by TEKS Resource System.
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1
Which of these best represents a fatty-acid molecule?
A
B
C
D
2 Which of these substances stores the
most energy? 3
F
one gram of alcohol
Which biomolecule's function is least
likely to be affected by the order of its
single-molecule units?
G
one gram of carbohydrate
A DNA
H one gram of fat
B starch
J
C
one gram of protein RNA
D protein
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4 A biomolecule that is a large, complex
set of chains composed of alternating
subunits called nucleotides has which of
these functions in the cell? F
storing energy
G
catalyzing cellular reactions
6 Many land plants store energy in starch.
When energy is needed, the starch
molecules can be broken down quickly.
This chemical reaction produces which
of the following?
F
amino acids
H building tissue
G
lipids
J
H monosaccharides
storing genetic information
J
5
The enzymes that catalyze cellular
reactions are macromolecules made of
organic compounds composed of carbon,
hydrogen, oxygen, and nitrogen. These
types of macromolecules are known as –
7
RNA chains
What monomer is represented by this
diagram?
A carbohydrates
B lipids
C
proteins
D nucleic acids
A monosaccharide
B nucleotide
C
glycerol
D amino acid
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8 A student preparing for a hike wants to pack a snack that has biomolecules that provide
quickly available energy but few excess calories. Which nutrition label lists the best
combination of biomolecules that provide quickly available energy while providing the
fewest calories from other types of biomolecules?
F
G
H
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J
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9 Proteins and polysaccharides are polymers. These polymers are formed by
dehydration synthesis. Which statement correctly identifies a difference in the structure of
proteins and polysaccharides?
A Only polysaccharides are comprised of repeating units of cytosine, adenine,
guanine, and thymine.
B Only proteins are formed from amino acids joined by peptide bonds.
C
Only polysaccharides can be folded and twisted to very specific shapes.
D Only proteins can be large molecules with thousands of subunits.
10
Many plants have waxy coatings on
some surfaces. This coating reduces
water loss because it is not waterpermeable. This waxy coating is which
of the following types of organic
molecule?
F
carbohydrate
G
lipid
11
Which of the following elements are
common to all biomolecules?
I. Carbon
II. Nitrogen
III. Hydrogen
IV. Potassium
A I, III
H nucleic acid
B II, IV
J
protein
C
I, II, III
D I, II, III, IV
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12
Which of the following molecules is formed from a product of photosynthesis?
F
G
H
J
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