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Biology Class 11 Chapter 13 - Immunity - 4
1.
Which one of the following is a phagocyte?
macrophages
none of these
neutrophils
both of these
2.
Monocytes are formed in the?
brain
liver
skin
bone marrow
3.
Life span of monocytes is?
10-20 hrs
10-20 weeks
10-20 mins
10-20 days
4.
Monocytes that leave the blood are called as?
microphages
RBCs
macrophages
erythrocytes
5.
Fever is produced by the protein?
myosin
keratin
actin
interleucin-1
6.
The life span of neutrophils in the tissues is?
4-5 days
4-5 weeks
4-5 mins
4-5 hours
7.
Natural killer cells are?
Erythrocytes
Platelets
RBCs
WBCs
8.
The weapons of the natural killer cells are?
sugars
proteins
none of these
fats
9.
The complement system reffers to a number of?
lipids
cholestrols
plasma proteins
sugars
10.
Neutrophils are?
RBCs
platelets
WBCs
erythrocytes
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