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Biology Class 11 Chapter 13 - Immunity - 3
1.
Sebaceous glands produce?
actin
keratin
sebum
myosin
2.
Function of sebum is?
none of these
protection to the skin against drying
protection to the skin against microbes
both of these
3.
Merocrine and apocrine are?
reproductive glands
digestive glands
sweat glands
respiratory glands
4.
Sweat glands are located in the?
kidneys
stomach
skin
brain
5.
HCl in the stomach is secreted by?
intestine
oxyntic cells
zymogen cells
liver
6.
Which one of the following has a protective role in the body
against microbes?
skin
all of these
RT
GIT
7.
Second line of defence does not include?
natural killer cells
fever
phagocytic cells
skin
8.
Cells that destroy other cells by engulfing and ingesting them are
called as?
phagocytes
langerhans cells
keratinocytes
melanocytes
9.
The process of destruction and ingestion of cells by phagocytes is known as?
thrombosis
homeostasis
osmosis
phagocytosis
10.
Sebum is rich in?
carbohydrates
lipids
proteins
sugars
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