Binding of the first messenger to the receptor activates the ____________________, which is a membrane-bound intermediary

Fill in the blank(s) with correct word


G-protein

Anatomy & Physiology

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The eye measures about ________ in diameter

A.   2.5 mm B.   12.5 mm C.   2.5 cm D.   12.5 cm E.   22.5 cm

Anatomy & Physiology

Which of the following substances found in semen is mismatched with its function?

A. fructose - nourishes sperm B. mucous - lubricates urethra C. fibrinogen - transient coagulation of semen D. prostaglandins - cause urethral contractions E. prostaglandins - cause uterine contractions

Anatomy & Physiology

"Osmosis" refers to the movement of what substance across semipermeable membranes?

A. Solutes B. Glucose C. Water D. Charged particles E. Lipid molecules

Anatomy & Physiology

________ open or close in response to binding specific molecules

A) Leak channels B) Activated channels C) Chemically gated channels D) Voltage-gated channels E) Voltage-gated and chemically gated channels

Anatomy & Physiology