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WorksheetsOrganic Molecules
Total questions: 33
Worksheet time: 3hrs 45mins
Enzymes are
carbohydrates
lipids
proteins
nucleic acids
Starches are
carbohydrates
lipids
proteins
nucleic acids
RNA is a
carbohydrate
lipid
protein
nucleic acid
Insulin is a
carbohydrate
lipid
protein
nucleic acid
Glucose is a
carbohydrate
lipid
protein
nucleic acid
A steroid is a
carbohydrate
lipid
protein
nucleic acid
Cellulose is a
carbohydrate
lipid
protein
nucleic acid
DNA is a
carbohydrate
lipid
protein
nucleic acid
Glycogen is a
carbohydrate
lipid
protein
nucleic acid
Hemoglobin is a
carbohydrate
lipid
protein
nucleic acid
A phospholipid is a
carbohydrate
lipid
protein
nucleic acid
The building blocks of proteins are
sugars (monosaccharides)
amino acids
nucleotides
fatty acids
The building blocks of lipids are
sugars (monosaccharides)
amino acids
nucleotides
fatty acids
The building blocks of carbohydrates are
sugars (monosaccharides)
amino acids
nucleotides
fatty acids
The building blocks of nucleic acids are
sugars (monosaccharides)
amino acids
nucleotides
fatty acids
The main function of carbohydrates is
holds genetic code for making proteins
long term energy
short term energy
The main function of lipids is
holds genetic code for making proteins
long term energy
short term energy
The main function of nucleic acids is
holds genetic code for making proteins
long term energy
short term energy
What does it mean that an enzyme is a "catalyst" for chemical reactions?
speeds up the reaction
slows down the reaction
makes sure the reaction does not occur
An enzyme is to a ________________ as a lock is to a key.
protein
amino acid
substrate
molecule
Enzymes are reusable
True
False
Enzymes are specific
True
False
Enzymes work best at a certain
temperature
pH
both temperature and pH
In general, do enzymes work faster at cooler temperatures or warmer temperatures?
cooler temperatures
warmer temperatures
What does it mean for an enzyme to become denatured?
the enzyme dies
the enzyme works better
the enzyme changes shape and no longer works
How can an enzyme become denatured?
extreme pH
high temperature
both extreme pH and high temperature
What 3 letters to enzyme names usually end in?
ose
ase
ise
What enzyme would break apart the sugar lactose?
(a)
pH 7 =
acid
base
neutral
pH 2 =
acid
base
neutral
pH 10 =
acid
base
neutral
What does a buffer do?
minimizes change in pH (keeps pH stable)
makes pH more acidic
makes pH more basic
Which 2 elements are in ALL organic molecules?
C (carbon)
H (hydrogen)
N (nitrogen)
P (phosphorus)
