Statewise Prepration
Govt. Examwise MCQ
1266+ MCQ Questions in english हिन्दी
Which part of the brain is responsible for thinking and intelligence?
The cerebrum is the largest part of the brain and is responsible for logic, reasoning, memory, and intelligence.
Which gland is known as the "master gland" of the body?
The pituitary gland controls other endocrine glands and many body functions.
Which pigment is responsible for red color in blood?
Hemoglobin contains iron and gives red color by binding with oxygen.
Which microorganism causes AIDS?
HIV (a virus) attacks the immune system, leading to AIDS.
Which process involves the conversion of glucose to energy in cells?
Cellular respiration breaks down glucose to release ATP energy.
Which organ in the human body filters waste from the blood?
Kidneys filter blood, removing urea and excess water as urine.
Which gas is essential for respiration in animals?
Oxygen is required for aerobic respiration to release energy from food..
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Which part of the flower becomes the fruit?
After fertilization, the ovary matures into the fruit.
Which blood vessel carries oxygenated blood from the lungs to the heart?
It’s the only vein that carries oxygen-rich blood—from lungs to the left atrium.
Which hormone regulates the metabolism in the human body?
Thyroxine, secreted by the thyroid gland, controls metabolic rate and energy use.
Which vitamin is also known as ascorbic acid?
Vitamin C (ascorbic acid) helps in wound healing, immunity, and iron absorption.
Habitat of an organism refers to:
It's the natural home of an organism.
What is the energy currency of the cell?
ATP stores and transports chemical energy in cells.
Study of fungi is called:
Mycology
. Total number of chromosomes in human body cells is:
Humans have 23 pairs of chromosomes = 46 in total.
. Insulin is secreted by which gland?
Insulin regulates blood glucose levels.
Light-sensitive layer of the eye is:
The retina contains photoreceptor cells (rods and cones).
Movement of water through a semi-permeable membrane is called:
Osmosis is passive movement of water across membranes.
The pigment responsible for the green color of plants is:
Chlorophyll absorbs light for photosynthesis and reflects green.
The protein found in nails and hair is:
Keratin provides strength and structure to nails and hair.
The genetic material in most organisms is:
DNA carries genetic instructions for development and function.
Which organ helps detoxify harmful substances in the body?
The liver breaks down toxins and drugs in the bloodstream.
The main function of red blood cells (RBCs) is:
RBCs contain hemoglobin which carries oxygen from lungs to tissues.
. Which organisms fix nitrogen in the soil?
Rhizobium bacteria live in root nodules of legumes and fix atmospheric nitrogen.
Which part of the brain controls heartbeat and breathing?
Medulla oblongata regulates involuntary functions like heartbeat and respiration.
Which enzyme digests protein in the stomach?
Pepsin is secreted by the stomach and breaks down proteins into peptides.
The malaria parasite is transmitted by:
Female Anopheles mosquitoes transmit Plasmodium during blood meals.
What is the term for animals that eat only plants?
Herbivores feed exclusively on plant material.
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