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NTA13 Questions
Zoology MCQs
Practice Zoology multiple-choice questions for NTA competitive exams. Each question includes the correct answer and a short explanation, and past-paper questions are marked so you can revise both repeated and fresh material in one place.
Liver
Lungs
Kidneys
Heart
ExplanationThe kidneys filter blood to remove waste products like urea and balance body fluids through urine formation.
Red blood cells
Platelets
White blood cells
Plasma
ExplanationWhite blood cells (leukocytes) are essential components of the immune system that fight off pathogens and infections.
Liver
Lungs
Kidneys
Heart
ExplanationThe kidneys filter blood to remove waste products like urea, forming urine in the process.
Red blood cells
White blood cells
Platelets
Plasma cells
ExplanationWhite blood cells (leukocytes) are responsible for fighting infections and foreign invaders.
Right atrium
Right ventricle
Left atrium
Left ventricle
ExplanationThe left ventricle is the strongest chamber and pumps oxygen-rich blood through the aorta to the rest of the body.
To pump blood
To release hormones
To digest food
To produce impulses
ExplanationThe endocrine system consists of glands that secrete hormones directly into the bloodstream to regulate body functions.
Amylase
Lipase
Pepsin
Trypsin
ExplanationPepsin is the primary digestive enzyme in the stomach that initiates the breakdown of proteins into peptides.
Fighting infection
Clotting blood
Transporting oxygen
Producing antibodies
ExplanationRed blood cells contain hemoglobin, which binds to oxygen to transport it throughout the body.
Pancreas
Liver
Gallbladder
Stomach
ExplanationThe liver produces bile, which is then stored in the gallbladder and released into the small intestine to aid fat digestion.
Cerebrum
Cerebellum
Medulla oblongata
Hypothalamus
ExplanationThe cerebellum is the part of the brain that coordinates voluntary movements, balance, and muscle tone.
Vitamin C
Vitamin K
Vitamin A
Vitamin E
ExplanationGut flora (intestinal bacteria) synthesize Vitamin K, which is essential for the process of blood clotting.
Neuron
Nephron
Alveoli
Villi
ExplanationThe nephron is the microscopic unit that filters blood and forms urine in the kidneys.
Thyroid gland
Adrenal gland
Pituitary gland
Pineal gland
ExplanationThe pituitary gland is called the master gland because it produces hormones that regulate the activity of many other endocrine glands.
Frequently Asked Questions
Are these Zoology MCQs free?
Yes. Every Zoology MCQ on this page is free to practice, including the correct answer and explanation.
Do these include past-paper questions?
Yes — questions sourced from past papers are clearly marked with a "Past Paper" badge, alongside fresh practice questions.
Which exams do these Zoology MCQs help with?
They are aimed at NTA and related Pakistani competitive exams that test Zoology.
How should I practice subject-wise MCQs?
Attempt each question first, then reveal the answer and read the explanation. Short, focused sessions on one subject work better than long unstructured reading.