Homeostasis & Transport Study Guide

What effect does diffusion have on the concentration of substances on either side of a membrane?
In which direction does diffusion take place?
The dispersal of ink in a beaker of water is an example of what process?
By what process do sugar molecules enter a cell?
In which direction do channels using facilitated diffusion work?
Does facilitated diffusion occur against or with a concentration gradient?
Besides energy, what else is needed for facilitated diffusion to occur?
What happens to the shape of carrier proteins in facilitated diffusion?
Electrical or chemical signals may control the movement of _________ across cell membranes.
Which of these processes requires energy to occur --- chemiosmosis, active transport, or a sodium-potassium pump?
Does diffusion require energy?
A potassium ion would enter a cell by what process?
What is osmosis?
Sugar dissolving in water is an example of what process?
Ridding a cell of waste by discharging it in sacs from the cell surface is known as ______.
__________ is used to remove materials from a cell that are too large to pass through the cell membrane.
Large molecules that can't pass through the cell membrane enter a cell by a process called ________.
What is turgor pressure?
What is plasmolysis?
Explain solute concentration and water movement for cells in hypotonic solutions solution.
Explain solute concentration and water movement for cells in hypertonic solutions solution.
If solute concentration is lower outside a cell than inside a cell, where is their the greatest concentration of water? Which direction will water move?