Statewise Prepration
Govt. Examwise MCQ
1593+ MCQ Questions in english हिन्दी
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.
DNA replication occurs in which phase of the cell cycle?
S-phase (Synthesis phase) is where DNA is duplicated.
What is the structural and functional unit of the kidney?
Nephron filters blood and forms urine.
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Which part of the plant is responsible for photosynthesis?
The leaf contains chloroplasts, which perform photosynthesis.
Which gas is released during photosynthesis?
Plants release oxygen as a by-product of converting CO₂ and water into glucose.
How many chambers are there in the human heart?
The human heart has 2 atria and 2 ventricles for efficient oxygenation and circulation.
Which vitamin is essential for blood clotting?
Vitamin K activates proteins needed for proper blood clotting.
What is the scientific name of humans?
Homo sapiens is the binomial name for modern humans.
Which part of the eye controls the amount of light entering?
The iris regulates the pupil size to control light entry.
What is the function of hemoglobin?
Hemoglobin binds oxygen in red blood cells and delivers it to tissues.
Which of the following is not a connective tissue?
Skin is an epithelial tissue, not connective.
What is the chemical formula of common salt?
Common salt is sodium chloride (NaCl), essential for human health and widely used in food preservation.
Which organ in the human body is known as the “filter”?
Kidneys filter waste from the blood and regulate water and salt balance, playing a crucial role in homeostasis.
What causes day and night on Earth?
The Earth rotates on its axis, resulting in the alternation of daylight and darkness every 24 hours.
Which enzyme is present in human saliva?
Salivary amylase (ptyalin) begins the digestion of starch into sugars.
What is the normal pH of human blood?
A slightly alkaline pH of 7.35–7.45 is essential for normal physiological functions.
Which gas is released during photosynthesis?
Plants release oxygen as a by-product of converting CO₂ and water into glucose.
Which gas is most abundant in Earth's atmosphere?
Nitrogen makes up about 78% of Earth’s atmosphere and is vital for plant growth through the nitrogen cycle.
Which disease is caused by the deficiency of iodine?
Iodine deficiency leads to thyroid gland enlargement, known as goitre.
Which part of the plant conducts photosynthesis?
Leaves contain chlorophyll, which captures sunlight to convert carbon dioxide and water into glucose and oxygen.
The largest organ in the human body is:
Skin covers and protects the body, making it the largest organ by surface area.
Which plant tissue is responsible for transport of water?
Xylem carries water and minerals from roots to other parts of the plant.
Which part of the brain controls balance and coordination?
The cerebellum manages posture, balance, and coordinated movements.
What is the basic unit of heredity?
A gene is a segment of DNA that codes for traits.
Which part of the cell is known as the "Powerhouse"?
It produces energy (ATP) through cellular respiration.
Madhya Pradesh hosted the National Games in which year?
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