Home
Class 12
BIOLOGY
[A] : Steroid hormones are similar to ch...

[A] : Steroid hormones are similar to choles- terol in structure.
[R]: Steroids contain phenanthrene ring struture.

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

Verified by Experts

The correct Answer is:
B
Promotional Banner

Topper's Solved these Questions

  • ANIMAL KINGDOM -NONCHORDATES

    TRUEMAN BIOLOGY|Exercise MCQ|291 Videos

  • APPLICATION OF BIOTECHNOLOGY

    TRUEMAN BIOLOGY|Exercise Multiple Choice Questions|121 Videos

Similar Questions

Explore conceptually related problems

Hormone similar to animal steroidal hormone is

[A]: Homologous organs have similar structure but different functions. [R]: It is believed that homologous structures were created for different purposes and their present function is secondarily achieved out of necessity

[A] : Peptide bonds are present in primary , secondary & tertiary structures of proteins . [R] : All structures of protein contain amino acids .

Antidiuretic hormone which is not steroid also known as

Total number of structural isomers of C_9H_18 containing cyclohexane ring.

Which of the following hormones is a steroid ?

How does steroid hormone influence the cellular activities? ,

Which of the following hormones is not a steroid ?

Assertion: Aldosterone is a steroid hormone and is important in the control of sodium and potassium ion concentration in mammals Reason: It upgrades sodium ion concentration in the ECF by promoting reabsorption of sodium ions from renal tubules and excretion of potassium ions in urine

[A]: During ovarian cycle follicles are con- trolled by gonadotropic hormones, follicle stimulating hormone (FSH) and luteinizing hormone (LH). [R]: During ovarian cycle follicles undergo maturation, contain a secondary oocyte and produce female sex hormones.

TRUEMAN BIOLOGY-Animal Physiology -ASSERTION AND REASON
  1. [A]: A tadpole whose thyroid gland has been removed does not metamorph...

    Text Solution

    |

  2. [A]: The regulation of RBC production is ac complished by the hormone ...

    Text Solution

    |

  3. [A] : Steroid hormones are similar to choles- terol in structure. [...

    Text Solution

    |

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

    Text Solution

    |

  5. [A] : Prostaglandins are hormone like mol- ecules produced by many bod...

    Text Solution

    |

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

    Text Solution

    |

  7. [A] : Testes are attached to abdominal wall by a ligament and under te...

    Text Solution

    |

  8. [A] : Emboly involves the invagination and involution. Enmbloy is ex...

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |