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BIO Exam 2A 2015
Test Description: Atoms to molecules
Instructions: Answer all questions to get your test result.
1) which of the following are functions of nucleic acids?
A
contain instructions for making proteins
B
combine to form proteins
C
they contain sulfur
D
they are made of lipids
2) types of lipids include
A
triglycerides
B
amino acids
C
nucleotides
D
polysaccharides
3) characteristics of DNA include
A
passing traits from one generation to the next
B
made of sugar, phosphate, and a carbon base
C
made of a single strand that winds to form a double helix
D
all of the other answers are correct
4) differences between RNA and DNA include
A
all of the rest are correct
B
DNA is double stranded
C
RNA is single stranded
D
Thymine in DNA, Uracil in RNA
5) a __________ cannot be broken down into other types of subsances
A
molecule
B
element
C
metal
D
compound
6) functions of proteins include
A
transporting materials
B
providing shape to cells
C
speeding up reactions
D
all of the rest are correct
7) the main difference between saturated and unsaturated fatty acids is
A
the number of hydrogen atoms bonded to the carbon atoms
B
the presence or absence of an acid group
C
saturated fatty acids are liquids
D
the amount of energy they contain
8) complex carbohydrates are made of subunits called
A
nucleotides
B
starch
C
amino acids
D
monosaccharides
9) proteins are made of subunits called
A
nucleotides
B
amino acids
C
carbohydrates
D
monosaccharides
10) nucleic acids are made of subunits called
A
amino acids
B
simple sugars
C
nucleotides
D
DNA
11) the main element in organic compounds is _____
A
carbon
B
hydrogen
C
sodium
D
oxygen
12) there are about ____ amino acids found in living things
A
4
B
55
C
20
D
120
13) chemical bonds in which one atom takes an electron from another are
A
ionic
B
hydrogen
C
metallic
D
covalent
14) matter is anything that takes up space and has
A
mass
B
chemistry
C
shape
D
energy
15) a bond in which atoms share electrons is
A
hydrogen
B
ionic
C
metallic
D
covalent
*select an answer for all questions
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