To fill:
The correct term in the given blank.
Introduction:
Cells, the smallest living entities, are the living building blocks for the immensely complicated whole body. Thus, cells are the bridge between chemicals and humans. Ultimately, all body functions of a multicellular organism rely on the collective structural and functional capabilities of its individual cells.
Answer to Problem 1RE
"The barrier that separates and controls movement between the cell contents and the extracellular fluid is the plasma membrane."
Explanation of Solution
The plasma membrane is a thin membranous structure that encloses each cell and is composed mostly of lipid molecules and studded with proteins. This barrier distinguishes the content of the cell from the cells around it and prevents the fluid inside the cells from mingling with the fluid outside the cells.
"The barrier that separates and controls movement between the cell contents and the extracellular fluid is the plasma membrane."
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Chapter 2 Solutions
Human Physiology: From Cells to Systems (MindTap Course List)
- Hydrophobic molecules that dissipate osmotic gradients byinserting themselves into a membrane and forming a channelare called _____________.arrow_forwardIf a person were to hypothetically drink a very large volume of plain tap water, his/her cells would __________.arrow_forward_____ ions are relatively impermeable to the cell membrane, they are let into the cell by gated channels (channel mediated facilitated diffusion).arrow_forward
- The hormone that increases the rate of cell division.arrow_forward. ________________ is a form of membrane transport thatrequires no direct energy input but does require a channel ora carrier.arrow_forwardBecause the plasma membrane is selectively permeable, nothing can diffuse through the bilayer. True or Falsearrow_forward
- Types of cellsarrow_forwardCell membrane modifications found on epithelial cells in the small intestine and kidney tubules that prevent movement of material from the intestinal tract into the peritoneal cavity are called ______arrow_forwardWhen a person becomes dehydrated, the amount of water in extracellular fluids such as blood decreases, causing the solute concentration of these fluids to increase. State whether osmosis results in water entering or leaving cells.arrow_forward
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