All but Which of the Following Are True of Diffusion

Both biomembrane phospholipids and transmembrane proteins are capable of free lateral diffusion. Diffusion regulates which molecules can and cant pass through a plasma membrane.

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Which among the following is true about diffusion.

. D Diffusion of a substance across the cell membrane is influenced by all of the following except. Diffusion describes the concentration gradient in a solution. Diffusion is the movement of water across a selectively permeable membrane.

Diffusion does not require energy and is therefore a form of passive transport. The correct option is B It does not require energy Movement of molecules from a higher to a lower concentration is favorable in terms of energy. Substances move from areas of high concentration to areas of low concentration.

A Diffusion explains the distribution of all cultural phenomena. Diffusion of particles along the concentration gradient will occur until particles are equally distributed in all areas of the solution. Transverse diffusion can be as free and rapid as lateral diffusion.

A quad Diffusion and osmosis rely on the electrochemical gradient of only the compound of interest. Diffusion and osmosis are terms that are often confused. Cell membrane fluidity is determined by transition temperature.

Science Biology QA Library All of the following are true about fluid mosaic model except. Facilitated diffusion The process by which molecules such as glucose are moved into cells along their. High solubility of a toxicant in a vehicle will increase skin absorption C.

Which of the following statements is true. A Osmosis only takes place in red blood cells. Cell drinking - A form of endocytosis.

Diffusion involves the breaking down of dead organelles. C We should never assume that any aspect of culture has diffused unless we can demonstrate the path of diffusion from one culture to another. C In osmosis water moves across a membrane from areas of lower solute concentration to areas of higher solute concentration.

Diffusion depends on the kinetic energy of molecules. Which of the following is true of diffusion. Diffusion involves the movement of molecules into or out of a cell.

In the absence of a barrier to diffusion diffusion continues until the concentration of molecules in different regions of an enclosed space are all in equilibrium. It is a slow process II. Which of the following is true for diffusion.

A Diffusion of gases is faster in air than across membranes B Diffusion osmosis and facilitated diffusion do not require any energy input from a cell C Both sides of a membrance are identical in structure and function D Voltage across the membrance depends on an unequal distribution. All toxicants penetrate the. B quad Diffusion and osmosis rely on the electrochemical gradient of all compounds in a cell.

The charge on the ion. Which of the following is true of osmosis. Which one of the following statements is true with respect to absorption of a toxicant through the skin.

Which of the following is true of diffusion and osmosis. C Diffusion and osmosis will proceed in the same direction if there is only one solute. Select all of the following that are true regarding facilitated diffusion.

The skin is incapable of xenobiotic metabolism B. It occurs due to the random motion of molecules. Substances move from low concentration to high concentration.

13 Which of the following statements is true. A it is very rapid over long distances B it requires an expenditure of energy by the cell C it is a passive process D it occurs when molecules move from a region of lower concentration to one of higher concentration E it requires integral proteins in the cell membrane. Hence no energy expenditure is required.

Diffusion is very obvious in gases and liquids but diffusion in solid rather than of solid is more likely. It does not depend on a living system III. B Osmosis is an energy-demanding or active process.

All of the following statements about membrance structure and function are true except. This is a Most important question of gk exam. Diffusion involves the movement of molecules in the cytoplasm.

Decreased diffusion capacity 5. Which of the following is NOT true of diffusion. -Its rate is higher than that of simple diffusion of the molecule-The direction of transport is determined by concentration andor electrochemical gradients-It is highly specific for the molecule being transported-The rate of transport is saturable.

Decreased MEFR 3Increased RV 4. In diffusion there is a net movement of molecules from areas of higher concentration to areas. Diffusion of particles against the concentration gradient will occur until all the particles have dissolved.

Which of the following statements about diffusion is NOT true. The presence of the membrane channels. Does not require a membrane protein passive process movement of molecules from areas of low concentration to high concentration requires the aid of a membrane protein continues until equilibrium is reached type of vesicular transport movement of molecules from areas of high.

Diffusion involves the movement of molecules using transport proteins. All the following are true about Chronic Obstructive lung disease except Options is. Asked Aug 23 2015 in Biology Microbiology by Marissa.

Diffusion applies to all molecules while osmosis is specifically the diffusion of water molecules. B Sometimes the same phenomenon does occur spontaneously and independently at two or more places. Substances eventually reach equilibrium.

It does not require energy. Which of the following statements is CORRECT about diffusion. It is very important to plants since it is the only means for gaseous movement within the plant body IV.

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