In: Biology
QUESTION 46
Risk factors for atherosclerosis include factors that can raise the levels of blood cholesterol, such as: (keep in mind some good habits can help lessen the impact of bad habits)
| A. | 
 maintaining homeostatic blood pressure  | 
|
| B. | 
 regular exercise and a low-fat diet  | 
|
| C. | 
 sedentary lifestyle, low-fat diet  | 
|
| D. | 
 dieting and REM sleep  | 
|
| E. | 
 obesity, smoking, and a sedentary life style  | 
1.5 points
QUESTION 47
The Electron Transport Chain (ETC) is the last step in cellular respiration, what is the final number of ATP produced in this step?
| A. | 
 2  | 
|
| B. | 
 5  | 
|
| C. | 
 32  | 
|
| D. | 
 3  | 
|
| E. | 
 1  | 
1.5 points
QUESTION 48
The Krebs Cycle (Citric Acid Cycle) is the second step in cellular respiration, what is the final number of ATP produced in this step?
| A. | 
 1  | 
|
| B. | 
 3  | 
|
| C. | 
 32  | 
|
| D. | 
 5  | 
|
| E. | 
 2  | 
1.5 points
QUESTION 49
The SA node (pacemaker of the heart) is located
| A. | 
 right ventricle  | 
|
| B. | 
 right atrium  | 
|
| C. | 
 left atrium  | 
|
| D. | 
 left ventricle  | 
1.5 points
QUESTION 50
The branch of science that studies living organisms and their life processes is
| A. | 
 physics  | 
|
| B. | 
 chemistry  | 
|
| C. | 
 biology  | 
|
| D. | 
 geology  | 
1.5 points
QUESTION 51
The central nervous system is composed of which of the following?
| A. | 
 somatic division and autonomic division  | 
|
| B. | 
 somatic division and motor division  | 
|
| C. | 
 sensory division and motor division  | 
|
| D. | 
 autonomic nervous system and brain  | 
|
| E. | 
 brain and spinal cord  |