Question

NUTRITION SCI106 LAB QUIZ VERSION A 1. The vitamin C deficiency disease is known as Name 2 functions of vitamin C in the body 2. 3. Name 2 signs associated with vitamin C deficiency 4 5. Name 2 significant food sources of vitamin C. (PLEASE BE SPECIFIC 6. 7. Using the diogram, rank the beverages in the test tubes below from highest vitamin C content (#1) to lowest vitamin C content (#4). (#2) (#3) 9. 10. apple guava orange pepsi 12, Fresh orange juice has 200% of the adult RDA for vitamin C per 1 cup (8 ounce) serving. What is the concentration of vitamin C in milligrams per ounce? 13. Birds can synthesize vitamin C in their bodies, but humans cannot do this. Which of the following is true? a. b. c. d. vitamin C is nonessential to humans vitamin C is essential to humans vitamin C is essential to birds a and c 14. Vitamin C is a. fat-soluble b. water-soluble c. a and b d. neither

Answer 1

#1. ANS: SCURVY

Vitamin C is also known as Ascorbic acid, is a vitamin found in foodsa and is used as a dietary supplement. This vitamin deficiency causes Scurvy which can be prevented and treated with vitamin C containing foods and dietary supplements.

#2 AND 3.

FUNCTIONS: Vitamin C is necessary for the growth, development and repair of all body tissues. Its functions includes: a) formation of collagen b) absorption of iron c) functioning immune system d) wound healing and f) maintanence of cartilage, teeth and bones.

#4 AND 5.

SIGNS ASSOCIATED WITH VITAMIN C DEFICIENCY: There are more signs related to vitamin c deficiency and these includes: a) rough, bumpy skin b) crokscrew-shaped body hair c) Spoon-shaped fingernails with red spots or lines d) dry, damaged skin e) easy bruising f) slow wound healing process g) painful, swollen joints h) weak bones i) bleeding gums and tooth loss and j) poor immunity.

#6 AND 7.

FOOD SOURCES OF VITAMIN C: The rich food sources of vitamin C includes vegetables and fruits like a) spinach, cabbage, and other green leafy vegetables b) potatoes, tomatoes and cauliflower c) citrus fruits like orage, lemonand grapefruit d) kiwi fruit and e) watermelon.

# 8 TO 11.

Citrus fruits are excellent sources of vitamin C, although certain types of fruits like guava(126 mg) contains more vitamin C per gram the citrus fruits such as oranges (70 mg). Next in line is apple. Apple (4.6mg) is a good source of vitamin C and contains both soluble and insoluble pectins and finally Pepsi. It contains 0 percenatge of vitamin c in the drinks.

#12. Eating fresh fruits is one of the easiest ways to get more vitamin C in the diet. Orange is a rich source of vitamin C. One eight-ounce glass of orange juice contains to an avaerage of 124 milligrams of vitamin C.

#13. Humans donot produce vitamin C due to a mutation in the gene called gulonolactone oxidase which further results in the inability to synthesize the protein.

#14. ANS: B

Vitamin B and C is a water soluble vitamin and other vitamins like A,D,E,K are fat soluble vitamins. Vitamin C is also a key key factor in antioxidant nutrient.