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General Biology > Transport Mechanisms > Flashcards

Transport Mechanisms Flashcards

1
Q

What kind of transport does not require energy/ATP and goes from a higher concentration to the lower concentration in the concentration gradient?

A

Passive Transport

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2
Q

What kind of Passive Transport uses membrane proteins to transport substances?

A

Facilitated diffusion

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3
Q

What kind of Transport uses ATP or energy to move substances from or to the cell and goes against the concentration gradient?

A

Active Transport

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4
Q

What are the 4 transport mechanisms?

A
  1. Diffusion & Facilitated Diffusion
  2. Osmosis
  3. Active Transport
  4. Bulk/Vesicular Transport
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5
Q

What is the amount of solute in a solution called?

A

Concentration

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6
Q

What is the dissolved substance in a
solution?

A

Solute

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7
Q

What is a mixture in which two or more substances are mixed evenly.

A

Solution

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8
Q

What is the gradual difference in the concentration of solutes in a solution between two regions?

A

Concentration Gradient

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9
Q

What is the substance doing the dissolving (substance the solute is dissolved in)?

A

Solvent

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10
Q

What is the movement of substances across the cell membrane either into or out of the cell?

A

Cellular Transport

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11
Q

What are the three transport machenisms under Passive Transport?

A
  1. Diffusion
  2. Osmosis
  3. Facilitated Diffiusion
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12
Q

What are the two transport machenisms under Active Transport?

A
  1. Endocytosis
  2. Exocytois
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13
Q

Which transport machenism is the movement of small particles across a selectively permeable membrane like the cell membrane until equilibrium is reached.

A

Diffusion

Passive Transport

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14
Q

This factor that determines the rate of diffusion describes how different the high concentration and the low concentration are from each other.

A

The steepness of the concentration gradient

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15
Q

This factor that determines the rate of diffusion describes how fast the particles are moving.

A

Temparature

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16
Q

This factor that determines the rate of diffusion describes how wide the area where the diffusion is taking place.

A

The surface area

17
Q

This factor that determines the rate of diffusion describes what is being diffused.

A

The type of molecule or ion diffusing

18
Q

What are the 4 Factors to Determine The Tate Of Diffusion?

A
  1. The steepness of the concentration gradient
  2. Temperature
  3. The surface area
  4. The type of molecule or ion diffusing.
19
Q

Which small molecules can diffuse in and out of cells ?

(a) hydrophobic
(b) hydrophilic

A

(a) Hydrophobic

20
Q

It is the diffusion of water through a selectively permeable membrane like the cell membrane.

A

Osmosis

21
Q

What is the extracellular solution’s ability to make water move inside or outside the cell?

A

Tonicity

Based on the Solute Outside the cell

22
Q

What solution has a lower concentration of solute molecules than another solution?

A

Hypotonic

Tonicity

23
Q

What solution has an equal concentration of solute molecules?

A

Isotonic

24
Q

What solution has a higher concentration of solute molecules than another solution.

A

Hypertonic

25
Q

Proteins that form channels (pores) are called what?

A

Protein Channels

26
Q

Proteins that works as pumps in Active Transport are called what?

A

Protein Pumps

27
Q

It is the mechanism by which very large molecules (such as food and wastes) get into and out of the cell.

A

Endocytosis and Exocytosis

28
Q

Food is moved into the
cell by which mechanism?

A

Endocytosis

29
Q

Wastes are moved out of
the cell by which mechanism?

A

Exocytosis

30
Q

It is a cellular process for ingesting and eliminating large particles by endocytosis.

A

Pahagocytosis

  • Endocytosis
  • Used by White Blood Celss to ENGULF bacteria
31
Q

It is the INGESTION of extracellular fluids, i.e., the fluid surrounding the cell, together with its contents of small dissolved molecules (solutes).

A

Pinocytosis

  • Endocytosis
  • Also called (cell drinking)

General Biology (5 decks)

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