Wcu Phys 261 Final Exam | Q&a (Graded A+) | Updated 2023

When a catecholamine or peptide hormone binds to receptors on the surface of a cell {Ans: a second messenger appears in the cytoplasm}The structure that connects the two cerebral hemispheres is the {Ans: corpus callosum}used immediately for energy {Ans: carbohydrate}The watery medium that surrounds a cell is known as {Ans: extracellular fluid}Saturation occurs when {Ans: a group of carrier proteins is operating at its maximum rate}The motor activity of the muscularis externa is controlled by the {Ans: myenteric plexus}Why do some normal cells fail to respond to a chemical signal? {Ans: Some cells lack the necessary receptors.}The following is a list of several levels of organization that make up the human body. 1. tissue 2. cell 3. organ 4. molecule 5. organism 6. organ system {Ans: 4, 2, 1, 3, 6, 5}Excess secretion of growth hormone during adulthood will cause {Ans: acromegaly}Cytokines function by {Ans: acting as messengers for growth and activity of other cells.}The cardiac output is equal to {Ans: product of heart rate and stroke volume}Which is NOT housed in the medulla oblongata? {Ans: centers for control of eye movement}The hormone primarily reponsible for the milk