1. What is physiology?
a) The study of animal behavior
b) The study of animal genetics
c) The study of animal anatomy
d) The study of the normal functions of living organisms and their parts
Answer: d) The study of the normal functions of living organisms and their parts
2. What is homeostasis?
a) The process of maintaining a stable internal environment
b) The process of reproduction in animals
c) The process of growth and development in animals
d) The process of responding to external stimuli
Answer: a) The process of maintaining a stable internal environment
3. Which of the following is NOT a component of homeostatic regulation?
a) Sensor
b) Effector
c) Stimulus
d) Synapse
Answer: d) Synapse
4. What is negative feedback?
a) A feedback mechanism that amplifies the initial stimulus
b) A feedback mechanism that opposes the initial stimulus
c) A feedback mechanism that has no effect on the initial stimulus
d) A feedback mechanism that occurs only in pathological conditions
Answer: b) A feedback mechanism that opposes the initial stimulus
5. Which organ is primarily responsible for regulating blood glucose levels?
a) Liver
b) Pancreas
c) Kidney
d) Heart
Answer: b) Pancreas
6. What is the role of insulin in blood glucose regulation?
a) To increase blood glucose levels
b) To decrease blood glucose levels
c) To stimulate glycogen breakdown
d) To inhibit glycogen breakdown
Answer: b) To decrease blood glucose levels
7. What is the function of the respiratory system?
a) To exchange gases between the blood and the external environment
b) To transport nutrients to cells
c) To remove waste products from the body
d) To regulate body temperature
Answer: a) To exchange gases between the blood and the external environment
8. Which of the following is NOT a component of the respiratory system?
a) Lungs
b) Trachea
c) Liver
d) Bronchi
Answer: c) Liver
9. What is the role of hemoglobin in the blood?
a) To transport oxygen
b) To transport carbon dioxide
c) To fight infection
d) To regulate blood pressure
Answer: a) To transport oxygen
10. What is the function of the circulatory system?
a) To transport gases, nutrients, and waste products throughout the body
b) To exchange gases between the blood and the external environment
c) To regulate body temperature
d) To remove waste products from the body
Answer: a) To transport gases, nutrients, and waste products throughout the body