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