Vitamin E Flashcards
T/F spinach and kale are good dietary sources of both vitamin E and vitamin K
True
T/F the 8 different forms of vitamin E are all absorbed and transported into circulation
False
T/F humans can become vitamin E deficient if they have fat-malabsorption
True
what are the 8 different forms of vitamin E?
Alpha T Beta T Gamma T Delta T Alpha T3 Beta T3 Gamma T3 Delta T3
T/F most cyanobacteria are able to synthesize vitamins E
False, only some can
T/F plants are able to synthesize vitamins E
True
what is the predominant form of vitamin E in non-photosynthetic tissues?
a. a-tocopherol
b. y-tocotrienol
c. b-tocopherol
d. y-tocopherol
d
what is the predominant form of vitamin E in green plants?
a. a-tocotrienol
b. b-tocotrienol
c. a-tocopherol
d. b-tocopherol
c
what is the main form vitamin E takes in the human body?
a. a-tocopherol
b. b-tocopherol
c. y-tocopherol
d. p-tocopherol
a
T/F Abetalipoproteinemia is a genetic disorder related to the bioavailability of vitamin C
False, vitamin E, A, D or K
a-TTP disfunctions are likely a result from which decreased vitamins bioavailability?
a. Vitamin A
b. Vitamin E
c. Vitamin K
d. Vitamin D3
b
T/F humans can become vitamin E deficient if they have a disturbance in lipoprotein metabolism
True
Where is vitamin E primarily stored?
a. Liver
b. Adipose tissue
c. Nowhere
d. Pancreas
c
All of these symptoms can result from vitamin E deficiency EXCEPT?
a. muscle pain and weakness
b. Vision problems
c. Nausea/vomiting
d. Weak immune system
e. Chronic diarrhea
f. Numbness
g. Walking difficulties
h. Tiredness
i. Skin problems and hair loss
c
All of these symptoms can result from vitamin E toxicity EXCEPT?
a. Nausea
b. Diarrhea
c. Hemorrhages
d. Dry mouth
e. Flatulence
d
What is vitamin Cs role in its interaction with vitamin E?
a. aids with the excretion of vitamin E by inducing SCM
b. recycles oxidized a-tocopherol back to its reduced state
c. when taken together, vitamin C increases absorption of vitamin E
d. vitamin C inhibits the transport of vitamin E into cells and is taken as a supplement for vitamin E toxicity
b
Why should you eat a fatty meal with vitamin E intake?
efficiency of absorption increases depending on how much fat is ingested
Higher concentrations of what would reduce the effects of lower concentrations of vitamin E?
a. beta-carotene
b. selenium
c. potassium
d. sodium
b
why should you avoid taking a vitamin E supplement while taking antiplatelets, anticoagulants, NSAIDs, or aspirin?
Vitamin E increases risk of bleeding by inhibiting k-dependent carboxylase
What is the relationship between cholesterol-lowering medications and vitamin E?
cholesterol-lowering medications interfere with fat absorption which may decrease absorption of vitamin E
Anticonvulsant drugs may:
a. increase absorption of vitamin E
b. lower plasma vitamin E concentrations
c. increase excretion of vitamin E
d. cause adverse effects if combined with a vitamin E supplement
b
which of the following can vitamin E treat? (multiple answers)
a. Cataracts
b. Muscle damage
c. Fatty liver disease
d. Type 2 diabetes
e. visual impairment
f. age-related macular degeneration
a,c,d,f