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7 April, 20:20

Matching: Match each description with the correct term.

A. active transport

B facilitated diffusion

C. diffusion

D. osmosis

E. exocytosis

1. The movement of molecules from an area of HIGH concentration to an area of LOW

concentration.

2. The diffusion of water molecules.

3. Energy is used to move molecules from an area of LOW concentration to an area of

HIGH concentration.

4. Membrane proteins are used to move molecules across the membrane but no energy is

required.

5. The movement of molecules down their concentration gradient.

6. The movement of molecules up against their concentration gradient.

7. Membrane proteins are used to move molecules across the membrane but energy from

ATP is required

8. A type of active transport that involves vesicles moving molecules out of a cell.

+2
Answers (2)
  1. 7 April, 20:36
    0
    1 - diffusion: It consists of the passage of the molecules of the solute, from the place of greatest to the place of lowest concentration, until establishing a balance. It is a slow process, except when the concentration gradient is very high or the distances covered are short.

    2 - osmosis: Water moves freely through the membrane, always from the place with the lowest concentration of solute to the one with the highest concentration.

    3 - active transport: In active transport, substances are transported with energy expenditure, which can occur from the lowest to the highest concentration (against the concentration gradient). This gradient can be chemical or electrical, as in the transport of ions.

    4 - facilitated diffusion: Facilitated diffusion is a type of passive transport of substances across the cell membrane, which is supported by proteins. It occurs without expenditure of ATP, that is, without expenditure of energy.

    5 - diffusion: It consists of transporting substances permeable to the membrane. These, in solution, can flow spontaneously from the inside of the cell or vice versa. This process occurs from a region with a higher concentration of particles to one with lower concentrations.

    6 - active transport

    7 - active transport

    8 - exocytosis: process where the cell expels unnecessary substances from its interior resulting from its enzymatic processes.
  2. 7 April, 21:26
    0
    Answer and Explanation:

    1. diffusion

    2. osmosis

    3. active transport

    4. facilitated diffusion

    5. diffusion

    6. active transport

    7. active transport

    8. exocytosis
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