Chapter 8 Flashcards
Atom
Smallest unit of matter
Antioxidants
Chemicals that protects cells from damaging from oxidation
Nucleus
Positively charge Center portion of the Atom
Electrons
Negative charged particles surrounding nucleus
Oxidation
Loss of electrons from a molecule
Reduction
The gain of electrons by molecule
Free radical
Adam that has lost an electron and is left with them unpaired electron
Vitamin E
Fat soluble vitamin
Tocotrienol
Biologically inactive form
Tocophorol
Biologically active form
Vitamin C
Water-soluble vitamins Synthesis of collagen prevent scurvy Enhances immune system Enhances iron absorption
Beta carotene
Carotenoids
Provitamin
Inactive precursors that must be converted to the active form of vitamins in the body
Enhance immune system
Protect skin from UV rays
Protect eyes
Vitamin A
Fat-soluble
Excess is stored in liver, fat, kidneys, lungs
Three active forms of vitamin A
Retinol
Retinal
Retionic Acid
Selenium
Trace mineral found in few amino acids in the body
Antioxidant
thyroid hormone