UNIT 1 MODULE 4 Flashcards
VITAMIN
organic molecules with varying functions
HORMONES
chemicals that travel through blood and cause cellular responses in distant tissues
Vitamins as coenzymes
interact with enzymes to enable reactions or make interaction between enzyme and substrate more efficient
Vitamins as signaling molecules
vitamins can be the signaling molecule that binds to plasma membrane surface receptors
Vitamins as Antioxidants
Antioxidants provide electrons to atoms that dont have enough (free radicals) which prevents these atoms from harming our cells
Water Soluble Vitamins
vitamins that dissolve in water
Fat Soluble Vitamins
-Vitamins that dissolve in fat and can be kept in long term storage in fat tissue
Which vitamin functions as a Hormone?
Vitamin D
Vitamin B12
Role: converts fats and proteins to usable molecules to send into cellular respiration pathways
Dietary Source: Dairy, Fish, Poultry
Niacin
Role: Component of coenzyme that creates NAD+
dietary source: Poultry, beans, leafy greens, green veggies
Caffeine
Natural plant product
-will readily dissolve in water or fat, so it gets into the blood stream and across the plasma
Caffeine on the Brain
-Blocks Adenosine receptors
-Adenosine builds up in the brain over the course of the day which makes you tired
Effects of caffeine on the brain
Triggers brain to release hormones that cause fatty acids to move from stored fat tissue to blood stream
-blood sugar will also increase
Caffeine on the Body
increased production of hormone causes heart to beat faster