Which organelle is known as the ‘protein factory’ of the cell?
(A) Mitochondria
(B) Ribosome
(C) Golgi body
(D) Endoplasmic reticulum
Answer: (B)

Which disease is caused by the deficiency of protein in children?
(A) Kwashiorkor
(B) Scurvy
(C) Rickets
(D) Beriberi
Answer: (A)

The movement of water from root to leaf is known as –
(A) Translocation
(B) Transportation
(C) Transpiration
(D) Ascent of sap
Answer: (D)

Which of the following is the site of photosynthesis in a plant cell?
(A) Nucleus
(B) Mitochondria
(C) Chloroplast
(D) Cytoplasm
Answer: (C)

Which blood cells are responsible for producing antibodies?
(A) Monocytes
(B) Platelets
(C) Lymphocytes
(D) Erythrocytes
Answer: (C)

Which of the following is the basic unit of DNA?
(A) Nucleotide
(B) Amino acid
(C) Enzyme
(D) Fatty acid
Answer: (A)

Which of the following is an example of an amphibian?
(A) Lizard
(B) Crocodile
(C) Frog
(D) Whale
Answer: (C)

Which of the following is not a component of the human skeleton?
(A) Cartilage
(B) Bone
(C) Ligament
(D) Muscle
Answer: (D)

Which is a bacterial disease?
(A) Polio
(B) Influenza
(C) Typhoid
(D) Rabies
Answer: (C)

The substance responsible for clotting of blood is –
(A) Albumin
(B) Globulin
(C) Fibrinogen
(D) Hemoglobin
Answer: (C)

Which process removes metabolic wastes from the body?
(A) Circulation
(B) Respiration
(C) Excretion
(D) Digestion
Answer: (C)

The main constituent of hair and nails is –
(A) Collagen
(B) Keratin
(C) Elastin
(D) Myosin
Answer: (B)

Which of the following is a genetic disorder?
(A) Tuberculosis
(B) Hemophilia
(C) Cholera
(D) Dysentery
Answer: (B)

In which organ is insulin produced?
(A) Liver
(B) Pancreas
(C) Kidney
(D) Intestine
Answer: (B)

The normal duration of the human menstrual cycle is –
(A) 21 days
(B) 28 days
(C) 30 days
(D) 35 days
Answer: (B)

Which part of the brain controls reflex actions?
(A) Cerebellum
(B) Spinal cord
(C) Medulla
(D) Pons
Answer: (B)

Which of the following is the largest muscle in the human body?
(A) Sartorius
(B) Biceps
(C) Gluteus maximus
(D) Masseter
Answer: (C)

Which hormone is responsible for secondary sexual characteristics in females?
(A) Progesterone
(B) Testosterone
(C) Insulin
(D) Glucagon
Answer: (A)

Which vitamin is not stored in the human body and must be taken regularly?
(A) Vitamin A
(B) Vitamin C
(C) Vitamin D
(D) Vitamin E
Answer: (B)

Which part of the neuron receives messages from other neurons?
(A) Axon
(B) Dendrite
(C) Synapse
(D) Myelin
Answer: (B)

The number of pairs of ribs in the human body is –
(A) 10
(B) 11
(C) 12
(D) 13
Answer: (C)

Which gland secretes melatonin?
(A) Thyroid
(B) Pineal
(C) Pituitary
(D) Adrenal
Answer: (B)

Which part of the body produces red and white blood cells?
(A) Liver
(B) Bone marrow
(C) Kidney
(D) Spleen
Answer: (B)

Which part of the body digests protein?
(A) Mouth
(B) Esophagus
(C) Stomach
(D) Colon
Answer: (C)

Which of the following is an example of tissue?
(A) Heart
(B) Blood
(C) Skin
(D) Brain
Answer: (B)

The process of fertilization takes place in –
(A) Uterus
(B) Ovary
(C) Fallopian tube
(D) Cervix
Answer: (C)

Which of the following is a sensory organ?
(A) Liver
(B) Stomach
(C) Skin
(D) Lung
Answer: (C)

Which of the following is not a component of the circulatory system?
(A) Arteries
(B) Veins
(C) Capillaries
(D) Bronchi
Answer: (D)

Which organ removes old red blood cells?
(A) Liver
(B) Spleen
(C) Kidney
(D) Heart
Answer: (B)

Which part of the human brain is responsible for regulating body temperature?
(A) Cerebrum
(B) Cerebellum
(C) Hypothalamus
(D) Medulla
Answer: (C)

How many chambers are present in a human heart?
(A) 2
(B) 3
(C) 4
(D) 5
Answer: (C)

Which part of the plant is responsible for photosynthesis?
(A) Stem
(B) Root
(C) Leaf
(D) Flower
Answer: (C)

What is the primary function of red blood cells?
(A) Clot blood
(B) Carry oxygen
(C) Fight infection
(D) Produce antibodies
Answer: (B)

Which organ controls the endocrine system?
(A) Pituitary gland
(B) Adrenal gland
(C) Thyroid gland
(D) Hypothalamus
Answer: (D)

The process by which plants lose water is –
(A) Transpiration
(B) Photosynthesis
(C) Respiration
(D) Diffusion
Answer: (A)

Which vitamin is essential for blood clotting?
(A) Vitamin A
(B) Vitamin B
(C) Vitamin D
(D) Vitamin K
Answer: (D)

Which blood group is known as universal recipient?
(A) O
(B) AB
(C) A
(D) B
Answer: (B)

Which pigment is present in bile?
(A) Bilirubin
(B) Melanin
(C) Hemoglobin
(D) Chlorophyll
Answer: (A)

The function of white blood cells is to –
(A) Carry oxygen
(B) Provide immunity
(C) Carry nutrients
(D) Produce hormones
Answer: (B)

Which type of lens is present in a human eye?
(A) Concave
(B) Convex
(C) Cylindrical
(D) Plano-convex
Answer: (B)

Which element is required for the synthesis of hemoglobin?
(A) Zinc
(B) Iodine
(C) Calcium
(D) Iron
Answer: (D)

Which part of the plant anchors it to the soil?
(A) Leaf
(B) Root
(C) Stem
(D) Flower
Answer: (B)

The main excretory product in humans is –
(A) Urea
(B) Ammonia
(C) Uric acid
(D) Carbon dioxide
Answer: (A)

The deficiency of which vitamin causes rickets?
(A) Vitamin A
(B) Vitamin B
(C) Vitamin C
(D) Vitamin D
Answer: (D)

Which part of the body is mainly responsible for detoxification?
(A) Kidney
(B) Liver
(C) Heart
(D) Stomach
Answer: (B)

Which of these connects muscles to bones?
(A) Tendon
(B) Ligament
(C) Cartilage
(D) Bone marrow
Answer: (A)

The transparent layer of the eye is called –
(A) Retina
(B) Cornea
(C) Iris
(D) Sclera
Answer: (B)

What is the full form of RNA?
(A) Ribonucleic acid
(B) Ribose nucleic acid
(C) Reactive nucleic acid
(D) Ribo nitrogen acid
Answer: (A)

Which of the following is a type of connective tissue?
(A) Nerve
(B) Muscle
(C) Bone
(D) Skin
Answer: (C)

Which part of the flower is male reproductive organ?
(A) Ovary
(B) Anther
(C) Stigma
(D) Style
Answer: (B)