The link between a first messenger and a second messenger in a cell that responds to peptide hormones is usually
A) cGMP.
B) adenylyl cyclase.
C) a G protein.
D) cAMP.
E) calcium.
C) a G protein.
Anatomy & Physiology
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Dendritic cells and macrophages kill by ingestion and destruction of particulate matter in a process called phagocytosis
Indicate whether the statement is true or false
Anatomy & Physiology
The subarachnoid space within the meninges contains cerebrospinal fluid
Indicate whether the statement is true or false
Anatomy & Physiology
The ANS can control which of the following without input from the brain?
A. Digestive secretion B. Blood pressure C. Urination D. Heart rate E. Sweating
Anatomy & Physiology
Any process, such as endocytosis, that causes massive changes in the cell membrane must expend energy and be active by definition.
a. true b. false
Anatomy & Physiology