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Biology Easy MCQs For FPSC Entry Test Preparation
Q.1: Panting is a representative of which mechanism?
- Pigmentation.
- Respiration.
- Evaporative cooling.
- Excretion.
C
Q.2: Formation of heat shock proteins in plants results in——?
- Elevation of temperature in cold conditions.
- Embracing the enzymes and other proteins and prevent their denaturation.
- Change the chemical nature of other proteins thus making them heat resistant.
- Help in evaporative cooling.
B
Q.3: Fishes, most of the invertebrates and amphibians are examples of —- animals?
- Endotherms
- Ectotherms
- Heterotherms
- Homeotherms
B
Q.4: The mechanism of regulation, generally between organism and its environment, of solutes and the gain and the loss of water is called—-?
- Homeostasis
- Hemostasis
- Osmoregualtion
- Thermoregulation
C
Q.5: Which of the following represents osmoregulatory steps taken by hydrophytes?
- Increases transpiration by increasing the surface area of the leave.
- Small and thick leaves to decrease the surface area proportional to the volume of the leave.
- Stomata closing in sufficient supply, and opening in restricted supply of water.
- None of these
A
Q.6: Most of the marine invertebrates are—–?
- Osmoconformers
- Osmoregulators
- Both depend upon the concentration of sea water
- None of these
A
Q.7: In human body 99% of total mass is formed of——-?
- 16 Bio-elements
- 12 Bio-elements
- 10 Bio-elements
- 6 Bio-elements
D
Q.8: Nitrogen is present in——?
- carbohydrates
- proteins
- lipids
- carbonates
B
Q.9: Biological organization is——-?
- simple
- advance
- complex
- highly complex
D
Q.10: Operculum is present in——-?
- bony fish
- sea fish
- cartilaginous fish
- none of these
A