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Transcript
Chapter 10 - Chemicals in Our Bodies and Our Environment: Vitamins, Food Additives, Pesticides and More
1.
A)
B)
C)
D)
Which of the following is not true for vitamins?
Only small amounts are needed, usually milligrams.
They can be digested and are essential building components.
They are caloric nutrients.
They preserve existing components.
2.
A)
B)
C)
D)
The derivation of the word vitamin is the following:
substances that are important to the body and made up of amines
substances that are important to the body and made up of proteins
substances that are important to the body and made up of amides
all vitamins are made up of amines
3.
A)
B)
C)
D)
Which of the following is the chemical name for Vitamin C?
niacin
Folic acid
Ascorbic acid
Pantothenic acid
4.
A)
B)
C)
D)
Which of the following vitamins is water soluble?
Vitamin A
Vitamin E
Vitamin C
Vitamin D
5.
A)
B)
C)
D)
The result of vitamin C deficiency is _____.
scaly skin
diabetes
loss of hair
scurvy
6.
A)
B)
C)
D)
Which of the following is an excellent antioxidant?
vitamin C
vitamin D
vitamin E
vitamin K
7.
A)
B)
C)
D)
Which of the following is not in the vitamin B family?
alpha-tocopherol
niacin
biotin
folic acid
Page 1
Chapter 10 - Chemicals in Our Bodies and Our Environment: Vitamins, Food Additives, Pesticides & More
8.
A)
B)
C)
D)
What is the vitamin that is chemically known as alpha-tocopherol?
vitamin A
vitamin B
vitamin C
vitamin E
9.
A)
B)
C)
D)
Which of the following vitamins act as coenzymes?
Vitamin A
Vitamin B
Vitamin C
Vitamin D
10.
A)
B)
C)
D)
Vitamin E is present in the following foods except ______.
eggs
vegetable oil
nuts
tomatoes
11.
A)
B)
C)
D)
The natural function of vitamin E is ______.
to prevent oxidation
to facilitate oxidation
to increase metabolism
to decrease metabolism
12.
A)
B)
C)
D)
Free radicals damage biological tissue by:
increasing oxidation in the cells
disrupting DNA formation
disrupting cell membranes
disrupting cell mitosis
13. In the absence of adequate Vitamin C, what chemical group will be lacking in synthesis
of collagen?
A) Methyl groups
B) Chloride groups
C) NH3 groups
D) OH Groups
14.
A)
B)
C)
D)
Vitamin A is present in the following foods except ______.
liver
eggs
milk
oranges
Page 2
Chapter 10 - Chemicals in Our Bodies and Our Environment: Vitamins, Food Additives, Pesticides & More
15.
A)
B)
C)
D)
Carrots are a good source of which vitamins?
vitamin A
vitamin B
vitamin C
vitamin D
16.
A)
B)
C)
D)
Which of the following is a symptom of vitamin A deficiency?
scurvy
scaly skin
sterility
night blindness
17.
A)
B)
C)
D)
Which of the following is a symptom of vitamin D deficiency?
sterility
night blindness
rickets
scurvy
18.
A)
B)
C)
D)
Which of the following foods is vitamin D added to prevent vitamin D deficiency?
water
milk
orange juice
tomato juice
19. Which vitamin formed in our bodies converts a cholesterol into a chemical precursor by
exposure to ultraviolet light?
A) vitamin A
B) vitamin B
C) vitamin D
D) vitamin K
20. Which vitamin is usually given to newborns to aid in the production of proteins for
blood clotting?
A) vitamin A
B) vitamin B
C) vitamin D
D) vitamin K
Page 3
Chapter 10 - Chemicals in Our Bodies and Our Environment: Vitamins, Food Additives, Pesticides & More
21.
A)
B)
C)
D)
Warfarin is a drug that interferes with which vitamin in order to prevent blood clots?
vitamin A
vitamin B
vitamin D
vitamin K
22.
A)
B)
C)
D)
Antioxidants perform the following function:
prevent rickets
prevent foods from becoming rancid
control calcium levels in the formation of bone
help prevent night blindness
23.
A)
B)
C)
D)
A vitamin that contains its own antioxidants naturally is ______.
vitamin E
vitamin C
vitamin B
vitamin A
24. Which vitamin is very important for women who are pregnant to prevent the birth
defect, “spina bifida”.
A) Vitamin B1
B) Vitamin B3
C) Vitamin B9
D) Vitamin B12
25.
A)
B)
C)
D)
An additive placed in food to prevent spoilage is _______.
EDTA
enzymes
BTA
MSG
26.
A)
B)
C)
D)
Food additives that are labeled by the FDA as safe are ______.
EDTA
GRAS
BHA
BTA
Page 4
Chapter 10 - Chemicals in Our Bodies and Our Environment: Vitamins, Food Additives, Pesticides & More
27. Which of the following foods have the highest concentration of antioxidants,
“lycopene”?
A) carrots
B) oranges
C) tomatoes
D) blueberries
28.
A)
B)
C)
D)
All chemical pesticides do the following:
block vital metabolic processes of the organism
prevent organisms from reproducing
are toxic only to humans
are toxic only to the undesirable organism
29.
A)
B)
C)
D)
Which of the following is an example of an herbicide?
MSG
BHA
Z, 4-D
DDT
30.
A)
B)
C)
D)
Which of the following vitamins is formed, by sunlight, in our bodies?
Vitamin A
Vitamin B
Vitamin C
Vitamin D
31.
A)
B)
C)
D)
What type of pesticide is DDT?
a herbicide
An insecticide
alagicide
larvicide
32.
A)
B)
C)
D)
Organophosphate pesticides are toxic to insects because they poison the _______.
nerves
digestive system
reproductive system
respiratory system
33.
A)
B)
C)
D)
Which of the following pesticides has the highest LD50?
diazinon
malathion
parathion
dichcoruos
Page 5
Chapter 10 - Chemicals in Our Bodies and Our Environment: Vitamins, Food Additives, Pesticides & More
34.
A)
B)
C)
D)
A natural pesticide used as a flea spray for animals is _______.
pheromones
rotenone
pyrethrins
DDT
35.
A)
B)
C)
D)
A popular pesticide used as a crop insecticide for over 150 years is _______.
pheromones
rotenone
pyrethrins
DDT
36.
A)
B)
C)
D)
The trace contaminant, 2,4,5-T, is found in which pesticide?
DDT
lindane
dioxin
diazinon
37.
A)
B)
C)
D)
PCBs are an environmental concern because _______.
they biomagnify
they have low LD50
they have high LD50
they bioaccumulate in the organism
38.
A)
B)
C)
D)
Which of the following does not belong to the family of dioxins?
Z,4-D
2,3,7,8-TCDD
PCDF
PCDD
39.
A)
B)
C)
D)
Which is the greatest source of dioxins?
production of PCBs
bleaching of paper
paper mills
incinerators
40.
A)
B)
C)
D)
Our exposure to dioxins is mainly through ______.
the water we drink
contact
our diet
the air we breathe
Page 6
Chapter 10 - Chemicals in Our Bodies and Our Environment: Vitamins, Food Additives, Pesticides & More
41.
A)
B)
C)
D)
Bioaccumulation is the result of the following:
bioconcentration
Bioconcentration and biomagnification
bromagnification
Concentration of organic chemicals
42. Which of the following would have the highest concentration of DDT because of
biomagnification?
A) A Herring gull
B) trout
C) Zoo plankton
D) phytoplankton
43.
A)
B)
C)
D)
What would be the free radical formed from CH4?
CH4
CH3
CH4
CH3
44.
A)
B)
C)
D)
Antioxidants such as vitamin E react with free radicals to form ______.
non-radicals
reactive free radicals
positive radicals
negative radicals
45.
A)
B)
C)
D)
What is the best food source of thiamin (B1), which assists in nerve function?
liver
milk
sunflower seeds
yogurt
46.
A)
B)
C)
D)
What is the best food source of riboflavin (B2), which is used for healthy skin?
pork
legumes
sunflower seeds
milk
Page 7
Chapter 10 - Chemicals in Our Bodies and Our Environment: Vitamins, Food Additives, Pesticides & More
47. Which vitamin found in cheese, milk, and egg food sources is used for new cell
synthesis?
A) B1
B) B2
C) B3
D) B12
48.
A)
B)
C)
D)
Vitamin C has a major role in the following:
fat metabolism
synthesis of RNA
immune system support
nerve function
49.
A)
B)
C)
D)
Fish in our diets is an excellent source of the following:
vitamin A
vitamin D
vitamin E
vitamin K
50.
A)
B)
C)
D)
Which of the following does the FDA not certify?
F D & C blue #1
F D & C blue #2
F D & C blue #3
F D & C green #3
51.
A)
B)
C)
D)
Which pesticide has the highest maximum water contaminant level (PPB)?
alachlor
methovychlor
endrin
glyphosate
52.
A)
B)
C)
D)
Glyphosate is the following:
herbicide
insecticide
fungicide
larvicide
53.
A)
B)
C)
D)
Which of the following vitamins is a good source of an antioxidant?
vitamin A
vitamin D
vitamin E
vitamin K
Page 8
Chapter 10 - Chemicals in Our Bodies and Our Environment: Vitamins, Food Additives, Pesticides & More
54.
A)
B)
C)
D)
Which of the following does not have a ring in its molecular structure?
vitamin C
vitamin B1
vitamin B3
vitamin B6
55. Organophosphate pesticides consists of molecules that contain a central phosphorus
atom and _______ bonds.
A) 3
B) 4
C) 5
D) 6
56.
A)
B)
C)
D)
The organophosphate pesticide that has the lowest LD50 for mammals is _______.
parathion
diazinon
DDT
malathion
57.
A)
B)
C)
D)
Organophosphate pesticides are toxic to insects because they
Inhibit oxygen flow in the blood
Inhibit enzymes in the nerves system
inhibit reproduction
Attacks the respiratory system
Page 9
Chapter 10 - Chemicals in Our Bodies and Our Environment: Vitamins, Food Additives, Pesticides & More
Answer Key
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8.
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35.
36.
37.
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41.
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44.
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46.
47.
C
A
C
C
D
A
A
D
B
D
A
C
D
D
A
D
C
B
D
D
D
B
A
C
A
B
D
A
C
D
B
A
A
C
B
C
D
A
D
C
B
A
B
A
C
D
D
Page 10
Chapter 10 - Chemicals in Our Bodies and Our Environment: Vitamins, Food Additives, Pesticides & More
48.
49.
50.
51.
52.
53.
54.
55.
56.
57.
C
B
C
D
A
C
A
C
D
B
Page 11