Question

what is most true about the receptor shown in this image? beta - 1 receptor heart cell parathyroid hormone decreases its expression. t3 and t4 (thyroid hormones) increase its expression. aldosterone increases its expression. adh decreases its expression.

Explanation:

Beta - 1 receptors are found on heart cells. Thyroid hormones T3 and T4 increase the expression of beta - 1 adrenergic receptors. Parathyroid hormone, aldosterone, and ADH do not have the described effects on beta - 1 receptor expression.

Answer:

T3 and T4 (thyroid hormones) increase it's expression.