Which organ of the body produces insulin? (A) Liver (B) Pancreas (C) Kidney (D) Gallbladder Answer: (B)
Which of the following blood vessels carries blood away from the heart? (A) Veins (B) Capillaries (C) Arteries (D) Venules Answer: (C)
The main function of lymph is to – (A) Transport oxygen (B) Fight infections (C) Digest food (D) Help in clotting Answer: (B)
Which vitamin is essential for preventing rickets? (A) Vitamin A (B) Vitamin B12 (C) Vitamin C (D) Vitamin D Answer: (D)
Which structure in a plant cell maintains its shape? (A) Cell wall (B) Cytoplasm (C) Nucleus (D) Chloroplast Answer: (A)
Which of the following is a function of the liver? (A) Filtering urine (B) Producing bile (C) Pumping blood (D) Regulating body temperature Answer: (B)
Which part of the body is affected by bronchitis? (A) Kidneys (B) Lungs (C) Liver (D) Intestines Answer: (B)
The valve between the right atrium and right ventricle is – (A) Bicuspid (B) Tricuspid (C) Aortic (D) Pulmonary Answer: (B)
Which enzyme digests proteins in the small intestine? (A) Amylase (B) Lipase (C) Pepsin (D) Trypsin Answer: (D)
Which of the following is NOT an excretory organ? (A) Kidney (B) Skin (C) Liver (D) Pancreas Answer: (D)
What is the primary function of the white part of the eye (sclera)? (A) Focus light (B) Protect the eye (C) Control pupil size (D) Detect color Answer: (B)
Which vitamin is known to boost immunity? (A) Vitamin A (B) Vitamin B (C) Vitamin C (D) Vitamin D Answer: (C)
Which plant hormone helps in the elongation of cells? (A) Auxin (B) Gibberellin (C) Cytokinin (D) Abscisic acid Answer: (A)
Which disease is caused by lack of iodine? (A) Goitre (B) Scurvy (C) Pellagra (D) Beriberi Answer: (A)
Which part of the nervous system controls reflexes? (A) Brain (B) Cerebrum (C) Spinal cord (D) Medulla Answer: (C)
What is the color of chlorophyll pigment? (A) Red (B) Yellow (C) Green (D) Brown Answer: (C)
Which of the following is a function of the skin? (A) Production of bile (B) Hormone secretion (C) Regulation of body temperature (D) Storage of calcium Answer: (C)
Which part of the flower contains the female reproductive organs? (A) Stamen (B) Anther (C) Pistil (D) Petal Answer: (C)
Which of the following connects the middle ear to the throat? (A) Cochlea (B) Auditory nerve (C) Eustachian tube (D) Tympanic membrane Answer: (C)
Which disease is caused by the Plasmodium parasite? (A) Typhoid (B) Malaria (C) Dengue (D) Rabies Answer: (B)
Which mineral is essential for the formation of hemoglobin? (A) Calcium (B) Iron (C) Zinc (D) Iodine Answer: (B)
Which of the following is an involuntary muscle? (A) Biceps (B) Calf muscle (C) Heart muscle (D) Deltoid Answer: (C)
Which blood component helps in fighting diseases? (A) RBC (B) WBC (C) Platelet (D) Plasma Answer: (B)
Which one of these is a viral disease? (A) Typhoid (B) Measles (C) Cholera (D) Tuberculosis Answer: (B)
What is the function of the cerebellum? (A) Thinking (B) Balance and coordination (C) Breathing (D) Memory Answer: (B)
Which hormone stimulates milk production after childbirth? (A) Oxytocin (B) Estrogen (C) Prolactin (D) Insulin Answer: (C)
The enzyme responsible for digestion of starch is – (A) Pepsin (B) Amylase (C) Trypsin (D) Lipase Answer: (B)
What is the lifespan of red blood cells in humans? (A) 60 days (B) 90 days (C) 100 days (D) 120 days Answer: (D)
Which organ stores urine before it is excreted? (A) Urethra (B) Bladder (C) Kidney (D) Ureter Answer: (B)
Which vitamin prevents scurvy? (A) Vitamin A (B) Vitamin B (C) Vitamin C (D) Vitamin D Answer: (C)
Which blood group is known as the universal recipient? (A) A (B) B (C) AB (D) O Answer: (C)
Which of the following protects the brain? (A) Skull (B) Ribs (C) Spine (D) Sternum Answer: (A)
The transparent layer covering the eye is called – (A) Retina (B) Iris (C) Cornea (D) Pupil Answer: (C)
Which vitamin is essential for bone growth? (A) Vitamin A (B) Vitamin B (C) Vitamin C (D) Vitamin D Answer: (D)
What is the main function of the heart? (A) Pump air (B) Produce hormones (C) Pump blood (D) Store oxygen Answer: (C)
The tube which carries urine from kidney to bladder is – (A) Urethra (B) Ureter (C) Nephron (D) Renal tubule Answer: (B)
Which part of the plant becomes the fruit? (A) Ovary (B) Ovule (C) Petal (D) Sepal Answer: (A)
Which of these is NOT a part of the male reproductive system? (A) Prostate (B) Urethra (C) Vas deferens (D) Ovary Answer: (D)
The area in the brain responsible for vision is – (A) Frontal lobe (B) Parietal lobe (C) Occipital lobe (D) Temporal lobe Answer: (C)
Which organ is involved in detoxification? (A) Spleen (B) Kidney (C) Liver (D) Pancreas Answer: (C)
Which of these cells have a biconcave shape? (A) WBC (B) Platelets (C) RBC (D) Neurons Answer: (C)
Which enzyme digests fats in the small intestine? (A) Trypsin (B) Lipase (C) Pepsin (D) Amylase Answer: (B)
Which part of the brain is responsible for intelligence and memory? (A) Cerebellum (B) Medulla (C) Cerebrum (D) Pons Answer: (C)
The scientific name for red blood cells is – (A) Erythrocytes (B) Leukocytes (C) Thrombocytes (D) Hemocytes Answer: (A)
Which nutrient is mainly used for energy production? (A) Protein (B) Fat (C) Carbohydrate (D) Vitamin Answer: (C)
What is the process of blood cell formation called? (A) Hemostasis (B) Hematopoiesis (C) Hemophilia (D) Hemorrhage Answer: (B)
The number of chromosomes in human gametes is – (A) 23 (B) 46 (C) 22 (D) 44 Answer: (A)
Which of these is a bacterial disease? (A) Hepatitis (B) Measles (C) Tuberculosis (D) Dengue Answer: (C)
The functional unit of the brain is – (A) Nephron (B) Neuron (C) Axon (D) Dendrite Answer: (B)