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NTS MCQs

National Testing Service — Complete MCQ Bank

69 Questions
Exam Preparation Guide

How to prepare for NTS

NTS tests evaluate aptitude, analytical reasoning, quantitative ability, English and subject knowledge for admissions, scholarships and recruitment.

EnglishQuantitative SkillsAnalytical ReasoningSubject Knowledge
Practice under a timer and review weak areas after every test to improve both speed and accuracy.
NTS preparation illustration
21
Biology Medium

What is the term for an interconnected network of food chains in an ecosystem?

  • APyramid of biomass
  • BTrophic level
  • CFood web
  • DFood chain
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Correct Answer: Option C — Food web
Explanation: A food web is a complex network of interconnected food chains in an ecosystem representing the multiple feeding relationships and energy pathways between organisms.
Submitted by: PaperMCQs
22
Biology Easy

What is the term for the sequence of feeding relationships in an ecosystem?

  • APyramid of numbers
  • BEcological niche
  • CTrophic level
  • DFood chain
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Correct Answer: Option D — Food chain
Explanation: A food chain is a linear sequence showing how energy and nutrients are transferred from one organism to another through feeding relationships starting from producers.
Submitted by: PaperMCQs
23
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
24
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
25
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
26
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
27
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
28
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
29
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
30
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