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Bio 1322
Chapter 10
34
Nutrition
Undergraduate 2
02/18/2015

Additional Nutrition Flashcards

 


 

Cards

Term
The bioavailability of a vitamin is not influenced by
Definition
The cost of the food product
Term
In order to minimize loss of vitamins during food preparation one might
Definition
refrigerate fresh food and vegetables
Term
which of the following statement is false with respect to fat-soluble vitamins
Definition
no toxic effect can occur since they are typically excreted in the urine
Term
Alcoholics are at an increased risk to have a
Definition
thiamin deficiency
Term
Symptoms associated with riboflavin deficiency include
Definition
cracks at the corners of the mouth
Term
Biotin plays a critical factor in the metabolic pathway of which compound
Definition
oxaloacetate
Term
Which B vitamin coenzyme plays a role in the synthesis of heme, nucleic acids and lecithin
Definition
pyridoxal phosphate (PPL)
Term
Which B vitamin is necessary for the conversion of vitamin B12 to an active coenzyme form
Definition
folate
Term
Symptoms associated with scurvy
Definition
can be resolved with adequate amounts of vitamin c
Term
flushing of the skin can be associated with the ingestion of
Definition
niacin
Term
When the diet contains an adequate amount of protein, what amino acid can be used by the body to synthesize niacin
Definition
tryptophan
Term
what is a chief function of the B vitamin
Definition
coenzyme participation
Term
which of the following is NOT among the general characteristics of the water-soluble vitamins
Definition
they are absorbed directly into the blood
Term
The absorption of which of the following vitamins is most affected by the disorder atrophic gastritis
Definition
vitamin B12
Term
Which of the following explains why B vitamin deficiencies lead to lack of energy
Definition
coenzymes needed for energy metabolism are produced in insufficient amounts
Term
which of the following is NOT among the common signs of pellagra
Definition
Desiccation
Term
The Wernicke-Korsakoff syndrome may be treated with supplements of
Definition
thiamin
Term
Research has shown that the risk for neutral tube defects is lowered by taking supplements of
Definition
folate
Term
The sign and symptoms of riboflavin deficiency are known collectively as
Definition
ariboflavinosis
Term
What vitamin forms a part of coenzyme A
Definition
pantothenic acid
Term
The chief symptoms of early vitamin B6 deficiency include
Definition
confusion and depression
Term
Which of the following characteristics is shared by vitamin B12 and folate
Definition
both are required for nuclide acid synthesis
Term
Pernicious anemia results from a deficiency of
Definition
vitamin B12
Term
The protein that requires ascorbic acid for its formation is
Definition
collagen
Term
Which of the following is an early sign of vitamin c deficiency
Definition
bleeding gums
Term
Your friend Jane just returned from the doctor, who diagnosed her with a specific vitamin B toxicity. However, she doesn't recall the name of the vitamin. Which of the following is the only possible culprit associated with toxicity symptoms
Definition
niacin
Term
A deficiency of which of the following vitamins results in accumulation of homocysteine in the blood
Definition
folate
Term
Those groups who are at risk for developing marginal nutrient deficiencies and may benefit from taking vitamin supplements include
Definition
all the above
(women of childbearing age and pregnant women, vegans, athletes who are engaged in intense competitive events, and people with low energy intakes such as habitual dieters and the elderly)
Term
Why shouldn't vitamin E supplements be taken for at least one week before surgery
Definition
vitamin E acts as a blood thinner and could lead to excessive bleeding
Term
The known dangers of taking vitamin supplements include all of the following EXCEPT
Definition
Pathogenic bacterial overgrowth of the large intestine leading to increased risk of infection
Term
There are certain groups of people that under certain circumstances should not take specific supplements identify which of the following is correct
Definition
all of the above
(postmenopausal women should not take vitamin A supplements, smokers should not tale beta-carotene supplements, men and postmenopausal women should not take iron supplements)
Term
Which of the following describes the basic function of a coenzyme
Definition
attaches to an enzyme and allows a chemical reaction to take place
Term
Biotin can be synthesized by
Definition
intestinal bacteria
Term
What is the most likely reason for the development of a vitamin B12 deficiency
Definition
inadequate absoption
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