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FPSC MCQs

Federal Public Service Commission — Complete MCQ Bank

96 Questions
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41
Biology Medium

Which type of nutrition involves organisms that feed on dead and decaying organic matter?

  • ASaprotrophic
  • BAutotrophic
  • CHolozoic
  • DParasitic
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Correct Answer: Option A — Saprotrophic
Explanation: Saprotrophic nutrition involves organisms such as fungi and bacteria secreting digestive enzymes onto dead organic matter and absorbing the digested nutrients playing a key role in decomposition.
Submitted by: PaperMCQs
42
Biology Medium

What is the term for the growth of plant roots downward in response to gravity?

  • APhototropism
  • BGeotropism
  • CHydrotropism
  • DThigmotropism
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Correct Answer: Option B — Geotropism
Explanation: Geotropism is the directional growth response of plant roots toward the pull of gravity ensuring they penetrate the soil to anchor the plant and absorb water and nutrients.
Submitted by: PaperMCQs
43
Biology Medium

What is the term for the bending of a plant toward light called?

  • AGeotropism
  • BPhototropism
  • CHydrotropism
  • DThigmotropism
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Correct Answer: Option B — Phototropism
Explanation: Phototropism is the growth response of a plant toward a light source caused by unequal distribution of auxin making cells on the shaded side elongate more than those on the lit side.
Submitted by: PaperMCQs
44
Biology Medium

Which type of tissue in plants transports dissolved food from leaves to other parts?

  • APhloem
  • BCambium
  • CXylem
  • DEpidermis
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Correct Answer: Option A — Phloem
Explanation: Phloem is the vascular tissue in plants responsible for transporting dissolved sugars and other organic compounds produced during photosynthesis from leaves to all parts of the plant.
Submitted by: PaperMCQs
45
Biology Medium

Which type of tissue in plants transports water and minerals from roots to leaves?

  • APhloem
  • BCambium
  • CEpidermis
  • DXylem
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Correct Answer: Option D — Xylem
Explanation: Xylem is the vascular tissue in plants that transports water and dissolved minerals from the roots upward through the stem to the leaves through a process driven by transpiration.
Submitted by: PaperMCQs
46
Biology Easy

What is the term for the movement of substances from high concentration to low concentration without energy?

  • AActive transport
  • BOsmosis
  • CEndocytosis
  • DDiffusion
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Correct Answer: Option D — Diffusion
Explanation: Diffusion is the passive movement of particles from a region of high concentration to low concentration down a concentration gradient without requiring cellular energy.
Submitted by: PaperMCQs
47
Biology Medium

What is the term for the movement of water from a region of high water concentration to low concentration through a semipermeable membrane?

  • ADiffusion
  • BOsmosis
  • CActive transport
  • DEndocytosis
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Correct Answer: Option B — Osmosis
Explanation: Osmosis is the movement of water molecules through a semipermeable membrane from a region of high water potential to low water potential without requiring energy.
Submitted by: PaperMCQs
48
Biology Medium

What is the term for the process by which plants lose water vapour through their leaves?

  • APhotosynthesis
  • BOsmosis
  • CTranspiration
  • DRespiration
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Correct Answer: Option C — Transpiration
Explanation: Transpiration is the process by which plants lose water vapour through stomata in their leaves creating a suction force that draws water and minerals up from the roots.
Submitted by: PaperMCQs
49
Biology Easy

How many chambers does the human heart have?

  • ATwo
  • BThree
  • CFour
  • DFive
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Correct Answer: Option C — Four
Explanation: The human heart has four chambers two upper atria that receive blood and two lower ventricles that pump blood ensuring separation of oxygenated and deoxygenated blood.
Submitted by: PaperMCQs
50
Biology Easy

What is the name of the pigment in red blood cells that carries oxygen?

  • AMelanin
  • BChlorophyll
  • CHaemoglobin
  • DMyoglobin
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Correct Answer: Option C — Haemoglobin
Explanation: Haemoglobin is the iron-containing protein in red blood cells that binds to oxygen in the lungs and transports it to tissues throughout the body for cellular respiration.
Submitted by: PaperMCQs
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