Mastering Biology Chapter 7 Answers

Diffusion. Diffusion is a passive process of transport. A single substance tends to move from an area of high concentration to an area of low concentration until the concentration is equal across the space. You are familiar with diffusion of substances through the air. For example, think about someone opening a bottle of perfume in a roomWhich of the following statements is correct about diffusion? A) It is very rapid over long distances. B) It requires an expenditure of energy by the cell. C) It is a passive process in which molecules move from a region of higher concentration to a region of lower concentration.Which of the following statements is CORRECT about diffusion? 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 membraneWhich of the following statements is correct regarding diffusion? A) The lower the temperature, the faster the diffusion rate. B) The greater the concentration of gradient, the faster the rate of diffusion. C) Molecular weight of a substance does not affect the rate of diffusion. D) The rate of diffusion is independent of temperature.Diffusion, of course, is the concentrate is the transport of molecules from areas of high to low concentrations. So from this definition, we can say that facilitated diffusion is an act of passive transport. So let's go through the answer choices. A says it is a passive process.

Which of the following statements is correct about diffusion?

1. Which of the following statements is correct about diffusion? a. It is very rapid over long distances b. It requires an expenditure of energy by the cell c. It is a passive process in which molecules move from a region of higher concentration to a region of lower concentration d. It is an active process in which molecules move from a region of lower concentration to one of higherWhich of the following statements about diffusion is true? It is a passive process. 5. Which of the following substances would be most likely to pass through the plasma membrane without the help of a transport protein? A nonpolar molecule, such as a hydrocarbon 6. Which of these statements describes some aspect of facilitated diffusion?Diffusion can be defined as the movement of solute or gaseous molecules from the region in which they have higher concentration to the regions in which they have lower concentration until they become evenly distributed across the two regions. Diffusion is a passive process, that is, it requires no energy. Option 3 is the correct option.Which of the following statements is correct about diffusion? Select one: a. It is a passive process in which molecules move from a region of higher concentration to a region of lower concentration. b. It is an active process in which molecules move from a region of lower concentration to one of higher concentration. c.

Quiz 3 - 2 Flashcards | Quizlet

Which of the following statements is correct about passive diffusion? It involves movement of molecules down a concentration gradient and may require a transport protein. Which one of the following organisms has a cell wall?Which of the following statements about passive transport is correct? 1) Passive transport operates independently of diffusion. 2)Passive transport operates independently of the concentrations of the substance being transported. 3) In passive transport, all movement of the transported molecule stops when its concentration is the same on bothChapter 05 - Test Bank: Membrane Structure, Synthesis, and Transport 28. Following a meal glucose must move from the gut lumen where there is a high glucose concentration into the intestinal cell where there is a relatively low level of glucose. This movement is called A. passive diffusion. B. facilitated diffusion. C.Which of the following statements is correct about passive diffusion? Select one: A) It is a process in which molecules move from a region of lower concentration to one of higher concentration (or up a concentration gradient).Which one of the following statements is true about diffusion? a. it is very rapid over long distances. b. it requires expenditure of energy by the cell. c. it is a passive process***** d. it occurs when molecules move froma region of lower concentration to a region of higher concentration. e. it requires membrane proteins

Which of the following statements is correct about diffusion and osmosis ?

(i) In osmosis, a semipermeable membrane is used whilst diffusion is with out membrane.

(ii) In osmosis, motion of molecules happens in a single course whilst in diffusion, movement happens in all directions.

(iii) In osmosis, simplest the solvent strikes whilst in diffusion both solute and solvent transfer.

a. Only (i) and (ii)

b. Only (i)

c. Only (ii) and (iii)

d. (i), (ii) and (iii)