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PBS Unit 2 Diabetes (Part 2) Review
Test Description: Aligned with PLTW'S PBS Diabetes unit, 2014-2015.
Instructions: Answer all questions to get your test result.
1) Simple sugars are made of polysaccharides.
A
True.
B
False.
2) Proteins are made of amino acids.
A
False
B
True.
3) Glycerol is made of fatty acids.
A
False
B
True
4) Amino acids are made of proteins
A
False
B
True
5) Enzymes
A
catalyze chemical reactions
B
are usually made of proteins
C
reduce the activation energy in chemical reactions
D
all of the above
6) A monosaccharide is a type of
A
protein
B
nucleic acid
C
lipid
D
carbohydrate
7) When sugars are put together, they go through which process?
A
digestion
B
hydrolysis
C
dehydration synthesis
D
ionic bonding
8) A by-product of dehydration synthesis is
A
oxygen
B
water
C
carbon dioxide
D
hydrogen
9) Which of the following macromolecules is the main source of energy for living things?
A
carbohydrates
B
lipids
C
nucleic acids
D
proteins
10) When bonds in macromolecules are broken, they release
A
energy
B
atoms
C
heat
D
water
11) Insulin is a
A
carbohydrate
B
lipid
C
amino acid
D
protein
12) A polysaccharide is made of
A
two sugars
B
one sugar
C
many sugars
D
three sugars
13) A lipid contains
A
three fatty acids
B
three fatty acids linked by a protein
C
three fatty acids and a glycerol
D
three amino acids and a glycerol
14) Negative feedback means that an increase in one action will
A
increase another action
B
decrease another action
C
stop everything all together
D
increase the same action
15) Which of the following molecules is an enzyme?
A
glucose
B
lipose
C
lipase
D
lactose
16) Chemical messengers are
A
disaccharides
B
active sites
C
cell receptors
D
hormones
17) What effect would the lack of insulin have on the body?
A
The body can't produce enzymes
B
Water will leave the cells
C
All of the above
D
Cells can't take up glucose
18) When sugars are broken apart, they go through which process?
A
hydrolysis
B
ionic bonding
C
digestion
D
dehydration synthesis
19) Which of the following is a three dimensional polymer made of monomers of amino acids?
A
protein
B
DNA/RNA
C
lipid
D
glucose
20) When you are cold, your brain sends signals to release hormones to increase metabolic activity and generate heat. When your body returns to normal, the brain stops sending the signals. This is an example of
A
none of the above
B
a negative feedback loop
C
a positive feedback loop
D
a neutral feedback loop
*select an answer for all questions
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