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Question

Which of the following would be classified as an innate mechanical mechanism?
A) activation of complememt
B) phagocytosis of invading organisms
C) washing action of tears and saliva
D) inflammation
E) release of histamine

Antibodies
A) play a large role in cell-mediated mmunity
B) are composed of four light and four heavy polypeptide chains
C)are not specific, but act generally
E) have a variable region that binds to a specific antigenic determinant

Answer 1

C is considered innate. B is considered a cellular component of innate immunity. Complement proteins are considered part of the soluble component of innate immunity.

For question 2, the answer is E.

And this is immunology, not anatomy.

Answer 2

C and E
Explanation
Question one: all these process are of innate immunity but question is asking MECHANICAL mechanism so answer C is right.
Question two: Though, antibodies(Abs) plays role in cell-mediated immunity but not LARGE ROLE ( A) is wrong choice).
Abs are specific, and composed of two light and two heavy chains( B and C also wrong.

Answer 3

1 b and a seriuosly both imp in innate immunity look it up

2 e and a

Answer 4

C

E