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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
reduce the activation energy in chemical reactions
C
all of the above
D
are usually made of proteins
6) A monosaccharide is a type of
A
lipid
B
protein
C
nucleic acid
D
carbohydrate
7) When sugars are put together, they go through which process?
A
ionic bonding
B
dehydration synthesis
C
digestion
D
hydrolysis
8) A by-product of dehydration synthesis is
A
water
B
carbon dioxide
C
hydrogen
D
oxygen
9) Which of the following macromolecules is the main source of energy for living things?
A
nucleic acids
B
proteins
C
carbohydrates
D
lipids
10) When bonds in macromolecules are broken, they release
A
energy
B
heat
C
water
D
atoms
11) Insulin is a
A
protein
B
lipid
C
amino acid
D
carbohydrate
12) A polysaccharide is made of
A
two sugars
B
many sugars
C
three sugars
D
one sugar
13) A lipid contains
A
three fatty acids linked by a protein
B
three fatty acids
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
stop everything all together
B
increase another action
C
decrease another action
D
increase the same action
15) Which of the following molecules is an enzyme?
A
lipase
B
glucose
C
lipose
D
lactose
16) Chemical messengers are
A
cell receptors
B
disaccharides
C
active sites
D
hormones
17) What effect would the lack of insulin have on the body?
A
All of the above
B
Water will leave the cells
C
Cells can't take up glucose
D
The body can't produce enzymes
18) When sugars are broken apart, they go through which process?
A
hydrolysis
B
digestion
C
dehydration synthesis
D
ionic bonding
19) Which of the following is a three dimensional polymer made of monomers of amino acids?
A
glucose
B
protein
C
lipid
D
DNA/RNA
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
a negative feedback loop
B
a neutral feedback loop
C
none of the above
D
a positive feedback loop
*select an answer for all questions
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