Busy. Please wait.

show password
Forgot Password?

Don't have an account?  Sign up 

Username is available taken
show password


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.
Didn't know it?
click below
Knew it?
click below
Don't know
Remaining cards (0)
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

Lecture 7 9/16/11 E1


The Word "Vitamins" -vita= "life" -amine= "contains N"(only a few actually contain N)
Vitamin Functions -required in small amounts -different from carbs, fat, protein -essential for metabolism -*metabolic regulators* -required for normal growth and maintenance
Vitamin Sources -not normally synthesized by the body -present in foods(effective in small amounts)
Fat Soluble Vitamins -resembles lipids(the reason why they are fat soluble) -Vitamin A, D, E, K -occur in plants as a provitamin(converted in the animal body by enzymes) -absorbed in small intestine with fat
Vitamin A -Beta Carotene: main source(precursor) of Vitamin A -fresh forage>grains(leafy has more) -extensive storage in liver -involved in eye function, epithilial tissue
Vitamin D -exposure to sunlight(in skin 7-dehydroxycholoesterol converts to vit D) -high in sun-cured forages -confinement may require vit D supplementation -some storage in liver -involved in regulating Ca & P metabolism
Vitamin E -Tocopherol(precursor) main source -extensive storage in body -serves as antioxidant(cellular health) and salidium: maintain health of cells(converts free radicals into water)
Vitamin K -produced by microbes in the gastrointestinal tract -deficiency not likely in most species -involved in blood clotting -moldy feed/forage=deficiency(releases a compound that inhibits vit K)
Water Soluble Vitamins -Vitamin B and C -absorbed in upper small intestine(except B12) -not as much stored as fat soluble vitamins -involved in transfer of energy(enzymatic activity-most are used this way), cofactors for enzymes
B Vitamins -B1:Thiamine -B2:Riboflavin -B3:Niacin -B5:Pantothenic Acid -B6:Pyridoxin -B7:Biotin -B9:Folic Acid -B12:Cobalamin -B4, B8, B10, B11: no longer considered B Vitamins
Vitamin C -maintains health -animals do not have a required amount, they produce enought themselves(humans, monkeys, & guinea pigs need to be supplemented)
Microbial Production -normally produced in Rumen -Vitamin K -B Vitamins
Vitamin Summary -organic nutrient(contains C) -not a functional source of energy -fat and water soluble -general function: metabolic regulators -microbes are a good source of B vitamins and vitamin K
Nutrient Review -Nutrient: a chemical compound having specific functions in the nutritive support of life; a nutritious ingredient or substance in food -water -carbohydrates -fats(lipids) -protein(amino acids) -minerals -vitamins
Created by: ickbutt



Use these flashcards to help memorize information. Look at the large card and try to recall what is on the other side. Then click the card to flip it. If you knew the answer, click the green Know box. Otherwise, click the red Don't know box.

When you've placed seven or more cards in the Don't know box, click "retry" to try those cards again.

If you've accidentally put the card in the wrong box, just click on the card to take it out of the box.

You can also use your keyboard to move the cards as follows:

If you are logged in to your account, this website will remember which cards you know and don't know so that they are in the same box the next time you log in.

When you need a break, try one of the other activities listed below the flashcards like Matching, Snowman, or Hungry Bug. Although it may feel like you're playing a game, your brain is still making more connections with the information to help you out.

To see how well you know the information, try the Quiz or Test activity.

Pass complete!

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