Busy. Please wait.
or

show password
Forgot Password?

Don't have an account?  Sign up 
or

Username is available taken
show password

why


Make sure to remember your password. If you forget it there is no way for StudyStack to send you a reset link. You would need to create a new account.
We do not share your email address with others. It is only used to allow you to reset your password. For details read our Privacy Policy and Terms of Service.


Already a StudyStack user? Log In

Reset Password
Enter the associated with your account, and we'll email you a link to reset your password.

Remove ads
Don't know
Know
remaining cards
Save
0:01
To flip the current card, click it or press the Spacebar key.  To move the current card to one of the three colored boxes, click on the box.  You may also press the UP ARROW key to move the card to the "Know" box, the DOWN ARROW key to move the card to the "Don't know" box, or the RIGHT ARROW key to move the card to the Remaining box.  You may also click on the card displayed in any of the three boxes to bring that card back to the center.

Pass complete!

"Know" box contains:
Time elapsed:
Retries:
restart all cards




share
Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.

  Normal Size     Small Size show me how

Nutrition Ch. 11

Fat Soluble Vitamins

QuestionAnswer
3 Forms of Vitamin A Retinol(Alcohol), Retinal(Aldehyde), and Retinoic acid(acid)
Retinol Binding Protein Carries retinol from the liver to cell
Vision Chemistry Visual molecule- rhodopsin, made of retinal(vit.A) and opsin(protein). Dark- retinal is bent and attached to opsin. Light- strengthens the retinal and breaks it off the opsin. Enzymes rebents and reattaches it to opsin
Night Blindness Slow recovery of vision in the dark after a bright flash of light
Other roles of Vitamin A Required: for goblet and epithelial cells development, by the immune system, for bone remodeling, steroids and thyroid hormones production
Xerophtalmia Blindness due to damage to the cornea, cause by Vitamin A deficiency
Beta-carotene Vitamin A precursor in plants, make vitamin out of it, yellowish
Vitamin A toxicity symptoms Occurs at 15,000ug; Cause joint pain, headache, slow clotting time, dry skin, nausea, diarrhea, fatigue, irritability, insomnia, amenorrhea, slow metabolism, and birth defects
Accutane & Retin-A Made from Vitamin A, thins the skin to reduce acne
Sources of Vitamin A Liver, dairy, some fruits and vegetables(mostly yellowish ones); killed inn fast foods
Vitamin D Can be made in skin with cholesterol and sunlight, elongate intestinal villi, increase Ca absorption, promotes bone mineralization, increase resistance to TB
Deficiency of Vitamin D Called Rickets, causes soft bones
Toxicity of Vitamin D Cause Ca deposits in soft tissues, such as kidney stones,
Sources of Vitamin D Dairy, 15 minutes of sun several times a week
Tocopherol General name for the four forms of Vitamin E
Free Radicals Atoms or molecules with an unpaired electron; very reactive, get it from everything- sunlight, smoking, pollution, etc.
Toxicity of Tocopherol Occurs 1000mg, causes nausea, cramps, fatigue, blurry vision
Sources of Tocopherol Oils, seeds, nuts, eggs, leafy green vegetables; can be destroyed by heat
Vitamin E's main function Antioxidants for the lipid tissue in the body
Vitamin E deficiency symptoms Anemia, poor vision, loss of coordination, cis in the breast
Vitamin K Required in the liver to make clotting factors and to make bone proteins
Sources of Vitamin K Milk, leafy green vegetables, GI bacteria
Deficiency of Vitamin K Causes easy bleeding and weakness
Toxicity of Vitamin K Occurs at 100 times of RDA, cause jaundice, RBC hemolysis, and brain damage
Hemorrhagic disease of the newborn Excessive bleeding due to low Vitamin K because the GI bacteria is sterile and they produce less prothombin. Treatment- drop of Vit K in mouth
Created by: Futuredoctor09