Questions and Answers
Regulating body temp in homeotherms(4)
Ans- -relocation
-thermogenisis
-blood flow:anatomical and functional consideration
-evaporation
Brown adipose tissue
Ans- -is one of the two fats in humans.
-activated by norepnephrine
-oxidative phosphorlation
Phagocytosis
,Ans- By the invagination of their membrane to obtain food.
Glucogen
Ans- Released when levels are low
Insulin
Ans- Released when levels are high
Modivates movement of material
Ans- -gravity
-hydrostatic pressure
-electrical gradients
-concentration gradients
Diffusion
Ans- By random molecular motion, molecular motion. Only short distances
, Pump, channels, and carrier-mediated transport
Ans- Ions/small molecules across membrane
Osmosis
Ans- Water movement across membranes (high to low)
Bulk flow
Ans- Efficient, long distance, mass movement, driven by hydrostatic pressure
Hydrostatic pressure
Ans- Force gradients
Concentration gradients
Ans- Entropy driven
Passive transport
Ans- Energeticly downhill, spontaneous process