Which part of the nephron is responsible for filtration of blood?
(A) Loop of Henle
(B) Collecting duct
(C) Glomerulus
(D) Bowman’s capsule
Answer: (C)
Which organ system includes the skin, hair, and nails?
(A) Circulatory system
(B) Nervous system
(C) Integumentary system
(D) Excretory system
Answer: (C)
What is the normal human body temperature?
(A) 97.0°F
(B) 98.6°F
(C) 99.4°F
(D) 100°F
Answer: (B)
Which of these is the process by which white blood cells engulf bacteria?
(A) Osmosis
(B) Phagocytosis
(C) Pinocytosis
(D) Diffusion
Answer: (B)
Which structure controls the passage of food from the stomach to the small intestine?
(A) Cardiac sphincter
(B) Pyloric sphincter
(C) Ileocecal valve
(D) Rectal valve
Answer: (B)
Which component of blood carries hormones?
(A) RBC
(B) Platelets
(C) Plasma
(D) WBC
Answer: (C)
The structure that connects muscles to bones is –
(A) Ligament
(B) Tendon
(C) Cartilage
(D) Joint
Answer: (B)
Which gland is known as the “master gland”?
(A) Adrenal
(B) Pituitary
(C) Thyroid
(D) Pineal
Answer: (B)
Which part of the human eye changes shape to focus light?
(A) Cornea
(B) Iris
(C) Retina
(D) Lens
Answer: (D)
Which cell organelle contains digestive enzymes?
(A) Mitochondria
(B) Ribosome
(C) Lysosome
(D) Nucleus
Answer: (C)
Which blood group is the universal plasma donor?
(A) A
(B) B
(C) AB
(D) O
Answer: (C)
Which type of muscle is found in the walls of internal organs?
(A) Skeletal
(B) Cardiac
(C) Smooth
(D) Voluntary
Answer: (C)
Which layer of the skin contains nerve endings?
(A) Epidermis
(B) Dermis
(C) Hypodermis
(D) Subcutaneous
Answer: (B)
Which enzyme is responsible for digestion of milk protein in infants?
(A) Pepsin
(B) Trypsin
(C) Rennin
(D) Amylase
Answer: (C)
Which of these is a function of the spleen?
(A) Produce insulin
(B) Produce bile
(C) Destroy old RBCs
(D) Produce urea
Answer: (C)
Which hormone is responsible for the ‘fight or flight’ response?
(A) Adrenaline
(B) Insulin
(C) Glucagon
(D) Cortisol
Answer: (A)
The number of bones in an adult human body is –
(A) 206
(B) 210
(C) 208
(D) 212
Answer: (A)
Which of these transports water in plants?
(A) Phloem
(B) Cambium
(C) Xylem
(D) Vessels
Answer: (C)
Which part of the flower develops into fruit?
(A) Ovary
(B) Ovule
(C) Anther
(D) Petal
Answer: (A)
Which type of immunity is provided by vaccination?
(A) Natural passive
(B) Natural active
(C) Artificial active
(D) Artificial passive
Answer: (C)
What is the function of bile in digestion?
(A) Digest protein
(B) Neutralize acid
(C) Emulsify fat
(D) Absorb nutrients
Answer: (C)
Which organ system helps maintain acid-base balance?
(A) Endocrine
(B) Digestive
(C) Respiratory
(D) Excretory
Answer: (D)
Which mineral is essential for muscle contraction?
(A) Iodine
(B) Calcium
(C) Iron
(D) Zinc
Answer: (B)
What is the fluid inside the joint called?
(A) Cerebrospinal fluid
(B) Synovial fluid
(C) Aqueous humor
(D) Interstitial fluid
Answer: (B)
Which part of the neuron insulates the axon and speeds up impulses?
(A) Myelin sheath
(B) Dendrites
(C) Synapse
(D) Axon terminal
Answer: (A)
What is the primary waste product of protein metabolism?
(A) Urea
(B) Ammonia
(C) Creatinine
(D) Uric acid
Answer: (A)
Which organelle is called the “powerhouse” of the cell?
(A) Ribosome
(B) Mitochondria
(C) Nucleus
(D) Golgi body
Answer: (B)
Which vitamin helps in night vision?
(A) Vitamin B
(B) Vitamin C
(C) Vitamin A
(D) Vitamin D
Answer: (C)
The portion of the brain that controls voluntary muscle movements is –
(A) Medulla
(B) Cerebrum
(C) Pons
(D) Cerebellum
Answer: (D)
Which of the following is a bacterial disease?
(A) AIDS
(B) Malaria
(C) Typhoid
(D) Measles
Answer: (C)
What is the primary function of red blood cells?
(A) Fight infection
(B) Produce antibodies
(C) Transport oxygen
(D) Repair tissue
Answer: (C)
Which component of the blood forms clots?
(A) Platelets
(B) RBCs
(C) WBCs
(D) Plasma
Answer: (A)
Which is the innermost part of the tooth?
(A) Enamel
(B) Dentin
(C) Pulp
(D) Cementum
Answer: (C)
What is the role of villi in the small intestine?
(A) Move food
(B) Digest fats
(C) Absorb nutrients
(D) Absorb water
Answer: (C)
Which hormone is responsible for lowering blood glucose?
(A) Glucagon
(B) Cortisol
(C) Insulin
(D) Thyroxine
Answer: (C)
Which cell organelle is responsible for packaging and transporting proteins?
(A) Golgi apparatus
(B) Ribosome
(C) Lysosome
(D) Endoplasmic reticulum
Answer: (A)
Which pigment protects human skin from UV rays?
(A) Keratin
(B) Collagen
(C) Melanin
(D) Elastin
Answer: (C)
Which organ produces digestive enzymes and insulin?
(A) Liver
(B) Pancreas
(C) Gallbladder
(D) Spleen
Answer: (B)
Which blood cells help in fighting infections?
(A) RBCs
(B) WBCs
(C) Platelets
(D) Plasma
Answer: (B)
What is the name of the process by which plants lose water vapor?
(A) Translocation
(B) Photosynthesis
(C) Respiration
(D) Transpiration
Answer: (D)
Which part of the plant absorbs water and minerals?
(A) Leaf
(B) Flower
(C) Root
(D) Stem
Answer: (C)
The brain and spinal cord make up the –
(A) Peripheral nervous system
(B) Central nervous system
(C) Autonomic nervous system
(D) Somatic nervous system
Answer: (B)
Which hormone stimulates ovulation in females?
(A) Estrogen
(B) FSH
(C) LH
(D) Oxytocin
Answer: (C)
Which part of the male reproductive system stores sperm?
(A) Testes
(B) Vas deferens
(C) Epididymis
(D) Urethra
Answer: (C)
Which is the site of oxygen exchange in the lungs?
(A) Trachea
(B) Bronchi
(C) Bronchioles
(D) Alveoli
Answer: (D)
Which part of the plant conducts photosynthesis?
(A) Stem
(B) Leaf
(C) Flower
(D) Root
Answer: (B)
What type of reproduction involves one parent and identical offspring?
(A) Sexual
(B) Binary fission
(C) Asexual
(D) Budding
Answer: (C)
Which part of the flower produces pollen?
(A) Filament
(B) Anther
(C) Style
(D) Ovary
Answer: (B)
Which organ helps maintain the body’s pH balance?
(A) Liver
(B) Kidney
(C) Lungs
(D) Pancreas
Answer: (B)
What is the main function of the large intestine?
(A) Digestion of protein
(B) Absorption of nutrients
(C) Water absorption and feces formation
(D) Digestion of fats
Answer: (C)