Skin: The Jack of all Trades
ICSE · Class 9 · Biology
Practice quiz for Skin: The Jack of all Trades — ICSE Class 9 Biology. MCQs and questions with answers to test your preparation.
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What percentage of an adult human's total body weight does the skin account for?
The outermost layer of the epidermis is called:
Melanin pigment in human skin is primarily found in which layer?
The dermis contains all of the following structures EXCEPT:
Sample Questions
Which of the following are primary functions of human skin?
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Protection from mechanical shocks, Temperature regulation, Sensation of touch and pain, Synthesis of Vitamin D
Skin performs multiple functions including protection, sensation, temperature regulation, and vitamin D synthesis. Digestion is not a function of skin but of the digestive system.
Which of the following are derivatives of human skin?
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Hair, Nails, Sweat glands, Mammary glands
Hair, nails, sweat glands, sebaceous glands, and mammary glands are all derivatives of skin. Teeth are not skin derivatives.
The oily secretion produced by sebaceous glands is called:
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Sebum
Sebaceous glands produce sebum, an oily secretion that makes hair and skin waterproof and keeps the epidermis supple.
Normal human body temperature is approximately:
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37°C
Normal human body temperature is about 37°C when measured in the mouth. It may be 1°C higher in rectum and 1°C lower in armpits.
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