Lecture 4: Sources of ATP

Question 1

what is the breakdown of ATP

Answer 1

ATP breaks down into ADP and Pi

Question 2

contraction breaks down ATP by the enzyme ______

Answer 2

myosin ATPase

Question 3

what are the chemical reaction that breakdown ATP

Answer 3

myosin ATPase and ion pumps (Ca ATPase, Na/K ATPase)

Question 4

2nd law of thermodynamics

Answer 4

no reactions in nature are 100% efficient in transferring energy, some energy is lost as HEAT

Question 5

calorie

Answer 5

amount of heat required to raise 1 g of water to 1 degree Celcius (from 14.5 to 15.5 degrees C)

Question 6

mole

Answer 6

mass in grams of a compound based on its atomic mass

Question 7

Calories/#moles

Answer 7

free energy available in the compound to perform work

Question 8

glucose: 1 mole (180 g)= ___ k cal

Answer 8

686 kcal

Question 9

palmitic acid: 1 mole (256 g) = ____ k cal

Answer 9

2340 kcal

Question 10

immediate non oxidative pathways

Answer 10

can regenerate ATP quickly but have small reserves

Question 11

oxidative pathways

Answer 11

have extensive reserves but take seconds to minutes for the metabolic pathways to increase ATP production