2nd Year Biology | Homeostasis | Quiz Part-I

Dear Students!

• This quiz is from Biology, Chapter No.15: HOMEOSTASIS, FSc Part-II / 2nd Year.
• We tried our best to make/choose maximum Multiple Choice Questions (MCQs) in this chapter. 
• This quiz is the Version-I of this chapter.

NOTE: 

The remaining MCQs of this chapter No.15 (Homeostasis) will be uploaded soon Insha Allah.

Attempt Short Questions and Answers of Chapter No.15 (Homeostasis)

Chapter No.15: HOMEOSTASIS - Quize Part-I

 

1. Phenomenon which keeps the physical or chemical parameters of internal environment relatively constant within predetermined range:
   1.   Hemostasis
   2.   Homeostasis
   3.   Homeothermic
   4.   Heterothermic
2. Who first presented the advantage of Homeostasis in 1857?
   1.   Darwin
   2.   Cannon
   3.   Claude Bernard
   4.   T.H.Morgan
3. Production of pyrogens is:
   1.   Aggressive
   2.   Protective
   3.   Destructive
   4.   Protective + destructive
4. Detector -> control center -> effector are the basic component of ___ system:
   1.   Conducting
   2.   Colloidal
   3.   Control
   4.   Cellular
5. Detection of change and signaling for effector’s response to control system is:
   1.   Feedback mechanism
   2.   Positive feedback
   3.   Negative feedback
   4.   All of them
6. Characteristics of control system in which a disturbance sets off events that increase the disturbance even further:
   1.   Positive feedback
   2.   Negative feedback
   3.   Feedback mechanism
   4.   Positive + negative feedback
7. The regulation of body temperature, PH and hormonal levels is done by:
   1.   Feedback mechanism
   2.   Positive feedback
   3.   Negative feedback
   4.   All of these
8. The environment which prevails inside the cell is called:
   1.   Extra cellular
   2.   Inter cellular
   3.   Intra cellular
   4.   External cellular
9. The mechanism of solute and water regulation generally between organisms and its environment:
   1.   Thermoregulation
   2.   Osmoregulation
   3.   Homeostasis
   4.   Excretion
10. If the solution around the cell is hypertonic, the cell become:
    1.   Isotonic
    2.   Hypotonic
    3.   Hypertonic
    4.   Isotonic + hypotonic
11. Pick one osmoregulatory activity performed by the xerophytes:
    1.   Large surface area of leaf for transpiration
    2.   Shed their leaves to restrict transpiration
    3.   Opening and closing of stomata for transpiration
    4.   None of them
12. Mango is an example of:
    1.   Hydrophytes
    2.   Mesophytes
    3.   Xerophytes
    4.   None of them
13. Movement of salt from one environment to other first required ATP because it moves from:
    1.   Hypotonic to hypertonic
    2.   Hypo-osmotic to hyper-osmotic
    3.   Both
    4.   None of them
14. Sharks are able to keep hypertonic body fluids to that of sea’s water by maintaining:
    1.   High concentration of urea
    2.   Low concentration urea
    3.   High concentration of urea and trimethy amine oxide
    4.   None of them
15. If an RBC is placed in hypotonic solution, it will:
    1.   Shrink
    2.   Burst
    3.   Remain same
    4.   Remove water