Cell Homeostasis

Which reason best explains why the cell membrane helps the cell maintain homeostasis? The cell membrane is selectively permeable. The cell membrane is composed of lipids and phosphates. The cell membrane is both hydrophilic and hydrophobic. The cell membrane is a bilayer structure.

Which solution would most likely cause a plant placed in it to become firmer and more rigid? hypertonic hypotonic isotonic osmotic

Water makes up a large percentage of the body's cells. For a cell to remain in homeostasis, there must be a mechanism to control water changes in the cells. The movement of water from an area of high water concentration to an area of low water concentration is

For diffusion to occur, which condition must be met? A concentration gradient must exist. A hypotonic external environment is required. A hypertonic external environment is required. Dynamic equilibrium must exist.

Which best describes dynamic equilibrium? There is a difference in concentration on either side of the cell membrane. There is an uneven distribution of particles inside and outside the cell. Particles are moving into and out of the cell, but their concentrations remain stable. A concentration gradient is forcing water out of the cell and particles into the cell.

Which best describes the difference between osmosis and diffusion? Osmosis is the movement of particles from a high to a low particle concentration, while diffusion is the movement of water from a high to a low water concentration. Diffusion is the movement of particles from a high to low particle concentration, while osmosis is the movement of water from a high to a low water concentration. Diffusion is the movement of particles from a low to a high particle concentration, while osmosis is the movement of water from a low to a high water concentration. Osmosis is the movement of particles from a low to a high particle concentration, while diffusion is the movement of water from a low to a high water concentration.

In which solution might a cell maintain homeostasis through diffusion? isotonic hypertonic hypotonic concentrated

Which homeostatic process requires energy to move particles across the plasma membrane? active transport passive transport dynamic equilibrium osmosis

What would most likely happen to a unicellular organism if it was exposed to a hypotonic solution for an extended period of time? It would shrivel and shrink. It would swell but never burst. It would swell and then burst. It would not be affected.