GENERAL SCIENCE
Biology & Human Body MCQs
Practice solved GENERAL SCIENCE MCQs for this class with answers and explanations.
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Topics
11
MCQs
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Papers
Q1
Long-sightedness is corrected with which type of lens?
Explanation
Long-sightedness, also called hyperopia, is corrected using a convex (converging) lens, which helps focus light properly on the retina.
Q2
Physiology is the study of:
Explanation
Physiology is the branch of biology that studies the normal functions and processes of living organisms and their body systems.
Q3
AIDS is primarily transmitted through:
Explanation
HIV, the virus that causes AIDS, can be transmitted through sexual contact, infected blood, and sharing contaminated needles. It is not spread through ordinary touch or air.
Q4
Name the hardest part of the human body.
Explanation
Tooth enamel is the hardest substance in the human body because it contains a very high percentage of mineral content.
Q5
Study of the development of the human race is known as:
Explanation
Anthropology is the scientific study of humans, including human development, societies, cultures, and biological evolution.
Q6
What is the common name for the condition myopia?
Explanation
Myopia is commonly called nearsightedness or short-sightedness, in which distant objects appear blurred.
Q7
Which one is not a vestigial organ of a human being?
Explanation
The eyelids are functional organs that protect and lubricate the eyes, whereas the appendix and coccyx are commonly listed as vestigial structures.
Q8
What is the work of the pituitary gland in the human body?
Explanation
The pituitary gland produces hormones that regulate several other endocrine glands and many important body functions.
Q9
The lifespan of White Blood Cells is:
Explanation
The lifespan of white blood cells varies by type; some may survive for hours or days, while others can persist much longer. The given MCQ convention uses 5–21 days.
Q10
How many bones is a human body composed of at the time of birth?
Explanation
A newborn baby has approximately 300 bones. Many of these bones gradually fuse together during growth, resulting in 206 bones in a typical adult human body.
Q11
Father transfers 'Y' Chromosomes to:
Explanation
A father has X and Y chromosomes in his sperm. If a sperm carrying the Y chromosome fertilizes the mother's X-bearing egg, the child is genetically male (XY), resulting in a son.