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Chemistry Of Life
Test Description: Chemistry and macromolecules
Instructions: Answer all questions to get your test result.
1) The smallest piece of an element is called _______________________
A
a mess
B
an atom
C
a nucleus
D
a compound
2) Two or more atoms of different elements bonded together makes _________.
A
a nucleus
B
a mixture
C
an element
D
a compound
3) A (n)_______________ is a smaller molecule that can be bonded to other identical molecules to form a polymer (large molecule)
A
monomer
B
atom
C
molecule
D
element
4) The monomers of carbohydrates are called __________________
A
fatty acids
B
nucleic acids
C
amino acids
D
glucose
5) The macromolecule that stores energy in living things and is part of membranes and waterproof coverings is ___________.
A
Protein
B
amino acid
C
nucleic acid
D
Lipid
6) _______________ is the most common element found in living things.
A
water
B
Phosphorus
C
Carbon
D
Nitrogen
7) For living things, the first choice of fuel for life processes is _____________.
A
carbohydrates
B
water
C
lipids
D
proteins
8) Enzymes are _____________________.
A
lipids
B
carbohydrates
C
nucleic acids
D
proteins
9) DNA is made from monomers of
A
nucleic acids
B
amino acids
C
fatty acids
D
glucose
10) The monomers that make up proteins are ____________.
A
glucose
B
nucleic acids
C
amino acids
D
fatty acids
11) Lipids contain glycerol and ________________
A
glucose
B
proteins
C
amino acids
D
fatty acids
12) The positively charged particle in an atom is _______________
A
neutron
B
atom
C
electron
D
proton
13) A nucleic acid has a 5-carbon sugar, a nitrogenous base and a _________.
A
amino acid
B
monomer
C
fatty acid
D
phosphate group
14) Starch is a complex ____________________.
A
Carbohydrate
B
Nucleic acid
C
Lipid
D
Protein
15) _________________ form cellular structure, regulate chemical reactions, transport things into and out of cells and help fight disease.
A
Lipids
B
Proteins
C
Carbohydrates
D
Nucleotides
16) The monomers of nucleic acids are _________________
A
fatty acids
B
nucleotides
C
amino acids
D
sugars
17) Macromolecule that has a C:H ratio of 2:1
A
DNA
B
lipids
C
carbohydrates
D
protein
18) Element that can bond with many different elements and with other atoms of itself. Forms basis for most compounds of life.
A
Hydrogen
B
Phosphorus
C
Carbon
D
Nitrogen
19) Form the basis of genetic information (DNA and RNA)
A
waxes
B
carbohydrates
C
proteins
D
nucleic acids
20) Substance that speeds up the rate of a chemical reaction.
A
catalyst
B
fat
C
nucleic acid
D
glucose
*select an answer for all questions
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