Quick Biology Multiple Choice

Question

1. What is homeostasis? 

a. The process in which internal conditions are kept within a tolerable range 

b. The process in which the internal conditions are kept constant 

c. The process in which the body responds to the external environment 

d. The process in which the internal temperature is kept constant 

4. How much extracellular fluid does the human body contain? 

a. 20L b. 10L c. 15L d. 25L 

5. What constitutes the internal environment? 

a. Plasma b. extracellular fluid c. interstitial fluid d. all of the above 

7. Which task would NOT be considered necessary for the survival of an organism?

a. Taking in nutrients

b. Responding to changes in the external environment  

c. Moving 

d. Synthesizing proteins, fats, and carbohydrates 

9. What elements are involved in homeostatic mechanisms? 

a. Thermoreceptor, set point, and effector 

b. Sensor, integrator, and effector 

c. Stimulus, sensor, and effector 

d. Sensor, responder, and effector 

10. What is an environment change that triggers a change in external or internal factors called?

a. Integrator b. sensor c. effector d. stimulus 

11. What is the role of the integrator? 

a. To activate the effector if necessary 

b. To return the system to its optimal state 

c. To detect changes in the environment  

d. To respond to the stimulus 

14. What are thermoreceptors?

a. Receptors that detect deviations from an internal set point temperature  

b. Receptors that adjust the rate of exothermic reactions 

c. Receptors that adjust the rate of thermal energy exchange through the body's surface d. d. All of the above  

15. How is thermal energy transferred through sweating? 

a. Evaporation b. convection c. radiation d. conduction  

16. Cold air displaces warmer air. What does this involve? 

a. Conduction b. radiation c. convection d. evaporation

19. Which organs are involved in the human excretory system? 

a. Kidneys, bladder, ureters, and urethra  

b. Liver and pancreas 

c. Liver, kidneys, and bladder 

d. Sweat glands and skin 

23. Where does the filtrate go from the distal convoluted tubule? 

a. Bowman's capsule b. proximal convoluted tubule c. loop of Henle d. collecting duct 

24. What causes kidney stones to form? 

a. Buildup of cholesterol 

b. Buildup of mineral solutes combined with calcium 

c. Buildup of mineral solutes, such as oxalates, phosphates, and carbonates 

d. Buildup of calcium 

Answer 1

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