Transport Mechanisms Flashcards
What kind of transport does not require energy/ATP and goes from a higher concentration to the lower concentration in the concentration gradient?
Passive Transport
What kind of Passive Transport uses membrane proteins to transport substances?
Facilitated diffusion
What kind of Transport uses ATP or energy to move substances from or to the cell and goes against the concentration gradient?
Active Transport
What are the 4 transport mechanisms?
- Diffusion & Facilitated Diffusion
- Osmosis
- Active Transport
- Bulk/Vesicular Transport
What is the amount of solute in a solution called?
Concentration
What is the dissolved substance in a
solution?
Solute
What is a mixture in which two or more substances are mixed evenly.
Solution
What is the gradual difference in the concentration of solutes in a solution between two regions?
Concentration Gradient
What is the substance doing the dissolving (substance the solute is dissolved in)?
Solvent
What is the movement of substances across the cell membrane either into or out of the cell?
Cellular Transport
What are the three transport machenisms under Passive Transport?
- Diffusion
- Osmosis
- Facilitated Diffiusion
What are the two transport machenisms under Active Transport?
- Endocytosis
- Exocytois
Which transport machenism is the movement of small particles across a selectively permeable membrane like the cell membrane until equilibrium is reached.
Diffusion
Passive Transport
This factor that determines the rate of diffusion describes how different the high concentration and the low concentration are from each other.
The steepness of the concentration gradient
This factor that determines the rate of diffusion describes how fast the particles are moving.
Temparature
This factor that determines the rate of diffusion describes how wide the area where the diffusion is taking place.
The surface area
This factor that determines the rate of diffusion describes what is being diffused.
The type of molecule or ion diffusing
What are the 4 Factors to Determine The Tate Of Diffusion?
- The steepness of the concentration gradient
- Temperature
- The surface area
- The type of molecule or ion diffusing.
Which small molecules can diffuse in and out of cells ?
(a) hydrophobic
(b) hydrophilic
(a) Hydrophobic
It is the diffusion of water through a selectively permeable membrane like the cell membrane.
Osmosis
What is the extracellular solution’s ability to make water move inside or outside the cell?
Tonicity
Based on the Solute Outside the cell
What solution has a lower concentration of solute molecules than another solution?
Hypotonic
Tonicity
What solution has an equal concentration of solute molecules?
Isotonic
What solution has a higher concentration of solute molecules than another solution.
Hypertonic
Proteins that form channels (pores) are called what?
Protein Channels
Proteins that works as pumps in Active Transport are called what?
Protein Pumps
It is the mechanism by which very large molecules (such as food and wastes) get into and out of the cell.
Endocytosis and Exocytosis
Food is moved into the
cell by which mechanism?
Endocytosis
Wastes are moved out of
the cell by which mechanism?
Exocytosis
It is a cellular process for ingesting and eliminating large particles by endocytosis.
Pahagocytosis
- Endocytosis
- Used by White Blood Celss to ENGULF bacteria
It is the INGESTION of extracellular fluids, i.e., the fluid surrounding the cell, together with its contents of small dissolved molecules (solutes).
Pinocytosis
- Endocytosis
- Also called (cell drinking)
