Micronutrients- 2 Flashcards
What is a process by which a substance loses one or more electrons?
Oxidation
What type of fatty acids are most susceptible to damage caused by ROS?
Polyunsaturated
What are a component in a phsopholipids that compose cell and organelle membranes?
PUFA
What is a fat-soluble vitamin but also has water solubility which allows integration into cellular membranes?
Vitamin E
What vitamin is reactivated by a selenium-containing enzyme, thioredoxin reductase?
Vitamin C
What vitamin is synthesized by plants, high in leafy greens?
Vitamin E
Vitamin E ________ with dietary fat and PUFA
Increases
What is an essential mineral in all animals?
Selenium
Glutathione peroxidase is an enzyme that _______ hydrogen peroxide to water and ______ lipid hydroperoxidases to alcohols
Reduces
What are vitamin E and selenium deficiencies called?
White muscle disease
Adequate selenium is required for __________ and sperm function in dogs
Testosterone
What is needed for normal thyroid function?
Selenium
What is a strong oxidant and a cofactor for the enzyme superoxide dismutase with neutralizes ROS molecules?
Copper
Copper is also a cofactor for tyrosine conversion to ________
Melanin
What oxidase is an enzyme important for collagen maturation?
Lysyl
What vitamin is important for coagulation?
K
What is produced by the gut bacteria and why most foods do not require added vitamin K?
Menaquinone (K2)
What vitamin treatment is required for anticoagulant poisoning?
K
_____ diets for cats do require vitamin K supplementation
Fish
