Which organelle is known as the “cell’s post office”?
(A) Mitochondria
(B) Nucleus
(C) Ribosome
(D) Golgi apparatus
Answer: (D)

The fluid portion of blood is known as –
(A) Serum
(B) Plasma
(C) Platelet
(D) Lymph
Answer: (B)

Which of the following is not a function of the kidney?
(A) Filtration of blood
(B) Hormone secretion
(C) Vitamin D activation
(D) Bile production
Answer: (D)

Which protein is found in milk?
(A) Casein
(B) Albumin
(C) Myosin
(D) Collagen
Answer: (A)

The region where two neurons meet is called –
(A) Axon
(B) Dendrite
(C) Synapse
(D) Receptor
Answer: (C)

Which vitamin prevents anemia?
(A) Vitamin A
(B) Vitamin B12
(C) Vitamin D
(D) Vitamin E
Answer: (B)

What is the function of the large intestine?
(A) Protein digestion
(B) Absorption of water
(C) Fat digestion
(D) Absorption of minerals
Answer: (B)

Which of these is a unicellular organism?
(A) Algae
(B) Amoeba
(C) Hydra
(D) Earthworm
Answer: (B)

Which of the following increases red blood cell production?
(A) Estrogen
(B) Erythropoietin
(C) Cortisol
(D) Insulin
Answer: (B)

Which organ is responsible for producing digestive enzymes and insulin?
(A) Liver
(B) Pancreas
(C) Gallbladder
(D) Kidney
Answer: (B)

Which part of the eye focuses light on the retina?
(A) Iris
(B) Cornea
(C) Pupil
(D) Lens
Answer: (D)

Which of the following is NOT an organ?
(A) Brain
(B) Heart
(C) Lung
(D) Bone marrow
Answer: (D)

Which condition is caused by high blood sugar?
(A) Anemia
(B) Diabetes
(C) Hemophilia
(D) Hypertension
Answer: (B)

The hormone responsible for milk ejection is –
(A) Prolactin
(B) Oxytocin
(C) Estrogen
(D) Insulin
Answer: (B)

Which enzyme is found in pancreatic juice?
(A) Pepsin
(B) Amylase
(C) Ptyalin
(D) Trypsin
Answer: (D)

Which organ in the human body produces urea?
(A) Kidney
(B) Liver
(C) Pancreas
(D) Intestine
Answer: (B)

Which of the following are filter-feeders?
(A) Amoeba
(B) Sponges
(C) Earthworms
(D) Ants
Answer: (B)

The number of thoracic vertebrae in humans is –
(A) 7
(B) 10
(C) 12
(D) 14
Answer: (C)

Which blood group can receive blood from all other groups?
(A) A
(B) B
(C) O
(D) AB
Answer: (D)

The instrument used to examine the ears is –
(A) Ophthalmoscope
(B) Stethoscope
(C) Otoscope
(D) Microscope
Answer: (C)

Which blood cells are the first responders to infection?
(A) Monocytes
(B) Lymphocytes
(C) Neutrophils
(D) Eosinophils
Answer: (C)

Which organ system regulates hormones in the human body?
(A) Nervous system
(B) Digestive system
(C) Endocrine system
(D) Circulatory system
Answer: (C)

Which part of the flower is sticky to trap pollen?
(A) Ovule
(B) Stigma
(C) Anther
(D) Filament
Answer: (B)

Which type of fat is considered good for health?
(A) Trans fat
(B) Saturated fat
(C) Unsaturated fat
(D) Hydrogenated fat
Answer: (C)

The hormone that causes ‘fight or flight’ response is –
(A) Cortisol
(B) Testosterone
(C) Adrenaline
(D) Prolactin
Answer: (C)

Which organ has both endocrine and exocrine functions?
(A) Thyroid
(B) Pituitary
(C) Pancreas
(D) Liver
Answer: (C)

Which nutrient is the major source of energy for the body?
(A) Protein
(B) Vitamins
(C) Carbohydrates
(D) Fats
Answer: (C)

Which vitamin is known to help in wound healing?
(A) Vitamin A
(B) Vitamin C
(C) Vitamin D
(D) Vitamin E
Answer: (B)

Which part of the heart receives oxygenated blood from the lungs?
(A) Left atrium
(B) Right atrium
(C) Left ventricle
(D) Right ventricle
Answer: (A)

Which gland secretes TSH (thyroid-stimulating hormone)?
(A) Thyroid
(B) Pituitary
(C) Adrenal
(D) Pancreas
Answer: (B)

Which of the following is not an autoimmune disease?
(A) Lupus
(B) Type 1 diabetes
(C) Asthma
(D) Rheumatoid arthritis
Answer: (C)

Which process converts solar energy into chemical energy?
(A) Respiration
(B) Digestion
(C) Photosynthesis
(D) Transpiration
Answer: (C)

Which mineral is a component of hemoglobin?
(A) Calcium
(B) Iron
(C) Magnesium
(D) Zinc
Answer: (B)

Which is the second largest organ in the human body?
(A) Brain
(B) Liver
(C) Heart
(D) Skin
Answer: (A)

Which of the following is a monocot plant?
(A) Pea
(B) Mustard
(C) Wheat
(D) Gram
Answer: (C)

The hormone glucagon is secreted by –
(A) Beta cells
(B) Alpha cells
(C) Delta cells
(D) Acinar cells
Answer: (B)

The reproductive part of a plant is the –
(A) Leaf
(B) Root
(C) Flower
(D) Stem
Answer: (C)

Which part of the nephron is responsible for water reabsorption?
(A) Glomerulus
(B) Proximal tubule
(C) Loop of Henle
(D) Collecting duct
Answer: (C)

Which vitamin is fat-soluble?
(A) Vitamin B
(B) Vitamin C
(C) Vitamin K
(D) Vitamin H
Answer: (C)

Which of these is a connective tissue?
(A) Muscle
(B) Epithelium
(C) Cartilage
(D) Nerve
Answer: (C)

The total number of chromosomes in human sex cells is –
(A) 22
(B) 44
(C) 23
(D) 46
Answer: (C)

The first organ to develop in a human embryo is –
(A) Brain
(B) Heart
(C) Liver
(D) Kidney
Answer: (B)

What is the function of the diaphragm in respiration?
(A) Regulates heartbeat
(B) Helps in inhalation
(C) Helps in digestion
(D) Controls eye movement
Answer: (B)

Which hormone controls the menstrual cycle?
(A) Testosterone
(B) Cortisol
(C) Estrogen
(D) Insulin
Answer: (C)

Which gland controls growth and metabolism?
(A) Adrenal
(B) Pituitary
(C) Pancreas
(D) Thyroid
Answer: (D)

Which organ is involved in voice production?
(A) Tongue
(B) Pharynx
(C) Larynx
(D) Trachea
Answer: (C)

The scientific study of tissues is called –
(A) Cytology
(B) Histology
(C) Physiology
(D) Pathology
Answer: (B)

Which organ absorbs nutrients from digested food?
(A) Stomach
(B) Small intestine
(C) Liver
(D) Pancreas
Answer: (B)

Which part of the brain is involved in vision?
(A) Frontal lobe
(B) Occipital lobe
(C) Temporal lobe
(D) Parietal lobe
Answer: (B)

Which of these is a male reproductive organ?
(A) Ovary
(B) Uterus
(C) Testes
(D) Fallopian tube
Answer: (C)