Muscle samples are taken from two groups of men. One group performs regular intense aerobic exercise. The second group is sedentary and does not exercise. When you compare their muscle samples at the microscopic level, you expect to find that the exercising men show increases in
A. Golgi apparatus.
B. capillary density.
C. smooth endoplasmic reticulum.
D. mitochondria.
E. mitochondria and capillary density.
E. mitochondria and capillary density.
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Four of the five answers listed below are human efforts to improve the carrying capacity of the earth
for humans. Select the exception. a. desertification b. recycling c. green revolution d. irrigation e. conservation
Most of the organisms that normally inhabit our skin help defend us against infection
a. True b. False
A(n) ________ is composed of a light-harvesting complex of chlorophyll pigments and an electron transport system
Fill in the blank(s) with correct word
Which of the following best (describes) defines substrate-level ATP synthesis?
A) An enzyme passes a high-energy phosphate to ADP resulting in ATP B) ATP is used to activate glucose for glycolysis C) An exergonic reaction is used to drive the synthesis of ATP from ADP plus phosphate D) Oxidation of a substrate results in a high energy bond E) ATP is synthesized from adenosine plus 3 phosphates