Download App

STD 11 - 19. Chemical coordination and integration — NEET STD 11 Science — Question

Gujarat BoardEnglish MediumSTD 11 ScienceNEETSTD 11 - 19. Chemical coordination and integration4 Marks
MCQ
Steroid hormones work as
  • ✓
    They enter into target cells and binds with specific receptor and activates specific genes to form protein
  • B
    They binds to cell membrane
  • C
    They catalyze formation of $cAMP$
  • D
    None of the above
✓

Answer

Correct option: A.
They enter into target cells and binds with specific receptor and activates specific genes to form protein
a
Steroid hormones are lipid soluble. So they can pass freely across the lipid bilayer of plasma membrane. After getting entrance into cytoplasm, molecules of steroids hormones bind to receptor molecules, located within the cytoplasm of target cell and thus a hormone receptor complex is formed. Now, this complex moves into the nucleus of the cell and activates specific gene that ultimately produce specific proteins.

Need a full question paper?

Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.

Start Generating Free

Explore more

NEET STD 11 Science question papers→Gujarat Board STD 11 Science question papers→Gujarat Board question paper generator→

Similar questions

The starter of inoculum is added to the fresh milk in order to convert milk into curd, the term starter or inoculum here refer to
→
Parents of blood groups $O$ and $AB$ cannot have a child of group $AB$ because
→
A contraceptive pill contains
→
Assertion: Arthritis is inflammation of joints.
Reason: Gout is inflammation of joints due to accumulation of uric acid crystals.
→
What happens in micturition?
→
Nitrogenous waste is excreted in the form of pellet or paste by :
→
The old worn out $RBCs$ are filtered out by
→
Which of the following option contain wrong statement regarding exchange of gases ?
(i) Alveoli are the primary sites of exchange of gases.
(ii) Exchange of gases also occurs between blood and tissues.
(iii) O2 and CO2 are exchanged mainly based on pressure/concentration gradient.
(iv) Solubility of the gases as well as the thickness of the membranes involved in diffusion are also some important factors that can affect the rate of diffusion.
(v) Solubility of CO2 is 20-25 times lower than that of O2.
(vi) The amount of CO2 that can diffuse through the diffusion membrane per unit difference in partial pressure is much lower compared to that of O2
→
Statement I: Cannabinoids interfere with the transpost of neuro-transmitter dopamine.
Statement II: Opioids are known for their effects on ardiovascular system of the body.
→
Branching descent is one of the key concepts of
→