113 exam 2

Question 1

what are characteristics of red fibers (type 1)?

Answer 1

-numerous and large mitochondria
-low glycolytic activity
-high krebs cycle

Question 2

what are characteristics of intermediate fibers (type IIA)?

Answer 2

-numerous, small mitochondria
-middle glycolytic activity
-middle krebs cycle

Question 3

what are characteristics of white fibers (type IIB or IIX)?

Answer 3

-less, small mitochondria + small z-line mitochondria
-high glycolytic activity
-low krebs cycle
-anaerobic or glycolytic metabolism