In diffusion, either the solute or solvent or both can move across the membrane layer.
Whereas, in osmosis, only the solvent molecule can move across a membrane layer.
Osmosis differs from diffusion in that a specific molecule is moving across a membrane layer. What...
Bio 109-Osmosis and Diffusion b. What does it mean when the cell membrane is described as being selectively permeable? c. Distinguish between osmosis and diffusion. 5. Define the following terms: a. solute A Gubstance tnat is dissolvedina soluhon b. solvent The dissoluing ao a solu hoyn c. solution eneous mixture hun on d. organic molecule Revised 06/2011
A small molecule that is lipid-soluble is likely to cross the cell membrane via? Osmosis, active transport, diffusion, facilitated diffusion, or group translocation?
Compare and Contrast Diffusion and Osmosis Diffusion Osmosis Is a gradient needed? Direction of movement in relation to the solute) Is a membrane required? Source of energy for movement What is moved
The majority of water molecules moving across plasma membranes by osmosis do so via a process that is most similar to _______ facilitated diffusion cotransport simple diffusion active transport a process that requires energy from the cell
QUESTIONS 1. What is the difference between diffusion and osmosis? om one Slace to an to we movement OP water aaross ca membiane is the solute and the 2. In a salt water solution, the is the solvent. Part A: The Effect of Concentration on Rate of Diffusion 3. Based on your results, how does the concentration of a solute affect its rate of diffusion? Part B: The Effect of Molecular Weight on Rate of Diffusion 4. Based on your...
What property of membranes makes the transverse diffusion of phospholipids across the membrane energetically unfavorable? a. lateral diffusion Ob protein immobilization O c. hydrophobic interior of the membrane d. membrane fluidity
1) Respiratory gases cross the respiratory membrane by____ A) simple diffusion B) active transport C) osmosis D) facilitated diffusion 2) Which environment separated by the respiratory membrane would display the highest oxygen partial pressure? A) alveolar air B) pulmonary capillary blood
How does facilitated diffusion differ from simple diffusion? Facilitated diffusion requires ATP Facilitated diffusion requires a solute-specific protein carrier Facilitated diffusion transports solute against its’ concentration gradient Which of the following is TRUE about primary active cell membrane transport? It is a form of transport that requires a protein “pump” It is a form of transport that transports ions and/or solute against their concentration gradient It is a transport mechanism that requires energy released from the splitting of ATP by...
A molecule takes 3.0 seconds to diffuse across a membrane. If the thickness of the membrane is doubled, then how long does it take the molecule to diffuse across the thicker membrane?
A correct distinction between facilitated diffusion and active transport of a substance across a biological membrane is that . . . A. active transport requires conformational changes in the transport protein associated with the transport process, and facillitated diffusion does not. B. active transport requires integral membrane protein to carry out the transport, and facillitated diffusion does not. C. facilitated diffusion depends on an existing energy gradient acting on the transported substance, while active transport makes such a gradient. D....