Explain the two forms of down-regulation.

What will be an ideal response?


Either the number of receptors decreases or desensitization in which the binding affinity of the receptors for the ligand decreases. In both cases the result is a lessened response of the target cell even though the concentration of the signal molecule remains high.

Anatomy & Physiology

You might also like to view...

________ line the brain ventricles and spinal canal

A) Astrocytes B) Satellite cells C) Oligodendrocytes D) Microglia E) Ependymal cells

Anatomy & Physiology

A surgical procedure to promote rapid weight loss is removal of most of the

A) pancreas. B) liver. C) duodenum. D) jejunum. E) ileum.

Anatomy & Physiology

Which region of the brain is enclosed or hidden by the cerebrum?

A) cerebellum B) diencephalon C) midbrain D) pons E) medulla oblongata

Anatomy & Physiology

Which of the following is considered the primary reproductive structure in the female?

A. Uterus B. Ovary C. Vagina D. Breast

Anatomy & Physiology