AP BIOLOGY

THE CELL

CELL COMMUNICATION

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Which of the following molecules would utilize an intracellular receptor?
A
protein ligands
B
steroid hormones
Explanation: 

Detailed explanation-1: -Examples include the thyroid hormones and the large group of steroid hormones, including glucocorticoids, mineralocorticoids and the sex steroid hormones.

Detailed explanation-2: -These molecules are also known as ligands. Hormones that use intracellular receptors include thyroid, aldosterone, and steroid hormones. Examples are the class of nuclear receptors located in the cell nucleus and cytoplasm and the IP3 receptor located on the endoplasmic reticulum.

Detailed explanation-3: -Steroid hormones regulate cellular processes by binding to intracellular receptors that, in turn, interact with discrete nucleotide sequences to alter gene expression. Because most steroid receptors in target cells are located in the cytoplasm, they need to get into the nucleus to alter gene expression.

Detailed explanation-4: -The mineralocorticoid receptor (MR) is an intracellular steroid hormone receptor, a member of the nuclear receptor superfamily of proteins. The MR mediates the physiological action of two important adrenal steroid hormones, aldosterone, and cortisol that have important roles in the maintenance of homeostasis.

There is 1 question to complete.