BIOCHEM SEMI BOOK

• are fat soluble vitamins

  miscellaneous lipids
• examples of of soluble vitamins

  • a
  • d
  • e
  • k
• vitamin a

  retinol
• is a pale yellow primary alcohol

  vitamin a
• derived from carotene

  vitamin a
• a primary alcohol with molecular formula of C20H30O


  vitamin a
• affects the formation and maintenance of skin, mucous membranes, and teeth; vision; and reproduction

  vitamin a
• what are the early deficiency symptoms of vit a

  • night blindness
  • excessive skin dryness
  • dryness of the eyes
• difficulty in adapting to darkness

  night darkness
• lack of mucous membrane secretion, causing susceptibility to bacterial invasion

  excessive skin dryness
• it is due to a malfunctioning of the tear glands

  dryness of the eyes
• a major cause of blindness in children in developing countries

  dryness of the eyes
• what does it forms when it oxidize to the retinal and combines with opsine

  rhodopsin
• light seeing pigment

  rhodopsin
• maintains the skin and mucus membrane of the eyes, oral cavity, and the digestive, respiratory, reproductive and urinary tract

  vitamin a
• without this vitamin, the membrane becomes hard and scaly or keratinized

  vitamin a
• example of vitamin a

  carotene
• the solar vitamin

  vitamin d
• secondary alcohol with the formula C28H44O

  vitamin d
• primary effect is on calcium metabolism

  vitamin d
• necessary for the normal calcification of bone tissue

  vitamin d
• anti-rachitic vitamins

  vitamin d
• what are the compounds of vitamin d activity

  • vitamin d2 or ergocalciferol
  • vitamin d3 or cholerocalciferol
• vegetable origin


  vitamin d2/ergocalciferol
• animal origin


  vitamin d3/cholecalciferol
• other name for vit d2

  ergocalciferol
• other name for vit d3

  cholerocalciferol
• is present in the skin

  pro vitamin d
• pro vitamin d that is present in the skin

  7 dehydrocholesterol
• other name for vitamin e

  a-tocopherol
• from the greek word mean promoter of child birth

  vitamin e
• anti-sterility vitamin

  vitamin e
• occurs mainly in fish, oils, cotton seed, peanut oils, green leafy vegetables, wheat, germ oil

  vitamin e
• it acts as antioxidation because it inhibits the oxidation of fatty acids bu oxygen

  vitamin s
• essential for the synthesis pf prothrombin in the liver

  vitamin k
• anti hemorrhagic vitamin

  vitamin k
• synthesized by intestinal bacteria

  vitamin k
• cannot crossed the placenta

  vitamin k
• deficiency of this vitamin occur in the infants during the first few days because newborn lack intestinal bacteria that produces this vitamin and they don’t have stored vitamin (_) since they cannot enter the placenta

  vitamin k
• any of a large number of organic compound that make up living organisms and are essential to their functioning

  protein