BIO 3200 CH7 REVIEW
D) a G protein. - ✔✔The link between a first messenger and a second messenger in a cell that
responds to peptide hormones is usually
A) cAMP.
B) adenylyl cyclase.
C) cGMP.
D) a G protein.
E) calcium.
C) cAMP is formed - ✔✔When adenylyl cyclase is activated,
A) calcium ions are released from intracellular stores.
B) steroids are produced.
C) cAMP is formed.
D) cAMP is broken down.
E) protein kinases are metabolized
C) smooth endoplasmic reticulum - ✔✔Steroid hormones are synthesized in the ________ of the
cell.
A) rough endoplasmic reticulum
%
B) nucleus
C) smooth endoplasmic reticulum
D) mitochondria
E) Golgi apparatus
A) Peptide hormones in the bloodstream are always bound to carrier proteins. - ✔✔Which statement
about peptide hormones is FALSE?
A) Peptide hormones in the bloodstream are always bound to carrier proteins.
B) Peptide hormones are first synthesized as prohormones.
C) Peptide hormones remain in circulation for relatively short periods of time.
D) Prohormones can be activated before their release by post-translational modification.
E) Peptide hormones interact with receptors on the surface of their target cells
C) thyroid-stimulating hormone - ✔✔Which hormone is NOT an amino acid derivative?
A) epinephrine
B) melatonin
C) thyroid-stimulating hormone
D) thyroid hormone
E) norepinephrine
, A) Vasopressin (ADH). - ✔✔The posterior pituitary gland secretes
A) Vasopressin (ADH).
B) TSH.
C) ACTH.
D) MSH.
E) FSH.
B) ACTH. - ✔✔The pituitary hormone that controls the release of hormones from the adrenal cortex
is
A) FSH.
B) ACTH.
C) TSH.
D) LH.
D) TSH. - ✔✔The pituitary hormone that controls hormone synthesis and release from the thyroid
gland is
A) LH.
B) FSH.
C) STH.
D) TSH.
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B) prolactin. - ✔✔The pituitary hormone that stimulates milk production by the mammary glands is
A) FSH.
B) prolactin.
C) TSH.
D) ACTH.
E) growth hormone
B) somatotropin. - ✔✔The pituitary hormone that stimulates cell growth and metabolism in many
tissues is
A) prolactin.
B) somatotropin.
C) insulin.
D) ACTH.
E) MSH.
peptide hormone - ✔✔lipophobic molecule that interacts with receptors on cell surface
hypothalamus - ✔✔site of vasopressin synthesis
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