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[A] : Prostaglandins are hormone like mo...

[A] : Prostaglandins are hormone like molecules produced by many body cells of mammals
[R]: Prostaglandins stimulates contraction of smooth muscles, secretion and piatelet aggregation.

A

If both A and R are true and R is the correct explanation of A

B

If both A and R are true but R is not the correct explanation of A

C

If A is true and R is false

D

If both A and R are false

Text Solution

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The correct Answer is:
B
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TRUEMEN BIOLOGY ENGLISH-Animal Physiology -ASSERTION AND REASON
  1. [A] : Steroid hormones are similar to cholesterol in structure. [R]...

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  2. [A] : The hormone aldosterone is secreted by adrenal cortex after the ...

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  3. [A] : Prostaglandins are hormone like molecules produced by many body ...

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  4. [A] : Placenta is a tissue in eutherian mam- mals that has both embryo...

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  5. [A] : Testes are attached to abdominal wall by inguinal canal, it is d...

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  6. [A] : Emboly involves the invagination and involution. [R] : Emboly i...

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  7. [A] : In vertebrates, motor fibres to striped muscle, parasympathetic...

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  8. [A] : Keratin is one of a group of fibrous in- soluble proteins (scele...

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  9. [A] : Macrophage is a large amoeboid cell that can engulf, ingest and ...

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  10. [A] : Molecules of fatty acid, glycerol, sugars and amino acids are ab...

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  11. [A] : Vitamins, A, D, E and K dissolve in fat and are absorbed with fa...

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  12. [A] : Vitamins A, D, E and K are fat soluble while vitamin B complex ...

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  13. [A] : In lower invertebrates the digestion is intracellular while in h...

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  14. [A] : Pancreas is the second largest of the di- gestive glands. [R]...

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  15. [A] : In the embryos liver is haemopoietic, it produces red blood corp...

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  16. [A] : Blood plasma is the slightly alkaline, liv- ing intercellular m...

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  17. [A]: When platelets disintegrate, 5-hydroxy tryptamine and histamine a...

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  18. [A] : Blood platelets play a very important role in coagulation of bl...

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  19. [A]: Prothrombin is necessory for blood clotting. , [R]: This is p...

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  20. [A] : In frog skull is dicondyiic. [R]: Skull articulates with the...

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