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NTS MCQs

National Testing Service — Complete MCQ Bank

262 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
141

Which flap of tissue prevents food from entering the trachea during swallowing?

  • ALarynx
  • BEpiglottis
  • CPharynx
  • DEsophagus
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Correct Answer: Option B — Epiglottis
Explanation: The epiglottis is a flap of tissue that folds over the trachea during swallowing preventing food and liquids from entering the airway and causing choking.
Submitted by: PaperMCQs
142

Which structure in the throat is commonly known as the voice box and is responsible for sound production?

  • APharynx
  • BLarynx
  • CTrachea
  • DEpiglottis
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Correct Answer: Option B — Larynx
Explanation: The larynx commonly known as the voice box contains vocal cords that vibrate to produce sound and also helps protect the airway during swallowing.
Submitted by: PaperMCQs
143

Which structure connects the throat to the lungs and branches into smaller airways within the chest?

  • AEsophagus
  • BTrachea
  • CLarynx
  • DPharynx
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Correct Answer: Option B — Trachea
Explanation: The trachea commonly known as the windpipe connects the throat to the lungs branching into smaller airways called bronchi that direct air into each lung.
Submitted by: PaperMCQs
144

Which part of the human respiratory system is primarily responsible for warming and filtering incoming air?

  • ATrachea
  • BNasal cavity
  • CBronchi
  • DAlveoli
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Correct Answer: Option B — Nasal cavity
Explanation: The nasal cavity warms moistens and filters incoming air removing dust and pathogens before it travels further into the respiratory system for gas exchange.
Submitted by: PaperMCQs
145

Which organ in the human body acts as a reservoir for blood and helps filter out old or damaged red blood cells?

  • ALiver
  • BSpleen
  • CPancreas
  • DKidney
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Correct Answer: Option B — Spleen
Explanation: The spleen acts as a reservoir for blood and filters out old or damaged red blood cells while also playing a role in immune system function within the body.
Submitted by: PaperMCQs
146

Which organ produces insulin to regulate blood sugar levels in the body?

  • ALiver
  • BPancreas
  • CKidney
  • DSpleen
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Correct Answer: Option B — Pancreas
Explanation: The pancreas produces insulin a hormone that regulates blood sugar levels by allowing cells to absorb glucose from the bloodstream for energy or storage.
Submitted by: PaperMCQs
147

Which organ stores bile produced by the liver until it is needed for digestion?

  • APancreas
  • BGallbladder
  • CStomach
  • DSpleen
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Correct Answer: Option B — Gallbladder
Explanation: The gallbladder stores and concentrates bile produced by the liver releasing it into the small intestine when needed to help digest fatty foods consumed during meals.
Submitted by: PaperMCQs
148

Which organ produces bile that aids in the digestion of fats?

  • APancreas
  • BLiver
  • CGallbladder
  • DStomach
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Correct Answer: Option B — Liver
Explanation: The liver produces bile which is stored in the gallbladder and released into the small intestine to emulsify fats making them easier to digest and absorb.
Submitted by: PaperMCQs
149

Which acid in the stomach helps in the digestion of food and kills harmful bacteria?

  • ASulfuric acid
  • BHydrochloric acid
  • CAcetic acid
  • DCitric acid
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Correct Answer: Option B — Hydrochloric acid
Explanation: Hydrochloric acid secreted by stomach glands helps digest food by activating pepsin and also kills many harmful bacteria that may be present in ingested food.
Submitted by: PaperMCQs
150

Which stomach enzyme is primarily responsible for breaking down proteins into smaller peptides?

  • AAmylase
  • BLipase
  • CPepsin
  • DTrypsin
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Correct Answer: Option C — Pepsin
Explanation: Pepsin is a stomach enzyme that breaks down proteins into smaller peptides functioning optimally in the highly acidic environment created by hydrochloric acid in the stomach.
Submitted by: PaperMCQs