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CELL TRANSPORT.

Published byRosângela Belém Modified over 5 years ago

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Presentation on theme: "CELL TRANSPORT."— Presentation transcript:

1 CELL TRANSPORT

2 What are two basic methods by which substances enter/exit the cell?
(1) Passive transport - no energy needed (2) Active transport - requires energy

3 Passive Transport or Diffusion
What is the movement of substances across a cell membrane from an area of higher concentration to an area of lower concentration? Passive Transport or Diffusion Higher Concentration sugar O2 salt aa Lower Concentration

4 What is the movement of substances from a region of higher concentration to a region of lower concentration? Diffusion Low Conc Low Conc High Conc Low Conc

5 What is this process called?
Passive transport Diffusion! fat fat fat Low conc inside cell fat fat fat fat fat outside cell fat fat fat High conc fat fat fat fat fat fat

6 What is the movement of water across a cell membrane?
Osmosis membrane Cell high conc H2O low conc H2O

7 What is this process called?
Osmosis water solute

8 Water will move into of the cell
What will happen to the cell? Water will move into of the cell The cell will swell. 10 % solute 25 % solute

9 Water will move out of the cell
What will happen to the cell? Water will move out of the cell The cell will shrivel. 25 % solute 5 % solute

10 What is this structure? The cell membrane

11 Water will enter the cells, and the cells will swell.
Elodea leaves are placed in pure water. What will happen to the cells? Water will enter the cells, and the cells will swell.

12 What process does this picture illustrate?
Diffusion

13 A structure that regulates what substances enter and exit the cell.
cell membrane

14 Diffusion or passive transport
What is this process called? Diffusion or passive transport

15 Movement of substances that
require the input of energy ACTIVE TRANSPORT

16 What process does this picture illustrate?
DIFFUSION PASSIVE TRANSPORT

17 What is this process called?
High Active transport Low conc High conc

18 What is this structure? The cell membrane

19 What process does this picture illustrate?

20 What process does this picture illustrate?
Diffusion

21 What process does this picture illustrate?
NUCLEUS OSMOSIS

22 What is this process called?
Diffusion or passive transport

23 What process does this picture illustrate?
Active Transport

24 ? ?

25 Diffusion or passive transport
What is this process called? Diffusion or passive transport High conc Low conc

26 What process does this picture illustrate?
Active Transport

27 The diffusion of water across a membrane
OSMOSIS

28 What is this process called?
Active transport Low conc High conc

29 What is this process called?
Osmosis H2O

30 What structure is this? The Cell Membrane

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