ED

Cell Transport - Mrs. Xavier

Review of Cell Transport Name: _______KEY____________________



  1. Directions: Complete the concept map below to use as a study guide to help you remember the differences between passive transport and active transport.  You can begin with the phrase “transport through membranes.”

Below are words you will use.


 facilitated diffusion     active transport   osmosis     exocytosis     endocytosis    pump   

without energy           simple diffusion













     Osmosis                               


        Endocytosis               Pumps                                                                                               Fa


Simple diffusion         Fac. diffusion

Exocytosis




Where on this concept map would you add Phagocytosis and Pinocytosis? Please add them where they belong. 


Underneath active transport/ endocytosis


What is the difference between the two? ___

_Phagocytosis is cell eating (solid particles )Pinocytosis is cell drinking (small molecules or ions)

______________________________________________________



MEMBRANE STRUCTURE and  TRANSPORT REVIEW

Correctly and identify the name for each part of the cell membrane.


Letter

Name/Color

Letter

Name/Color

  A_

Phospholipid bilayer 

      H_

Peripheral protein 

  B_

Integral protein 

      I_

Cholesterol 

  F_

Fatty acid tails 

      C_

Glycoprotein

  G_

Phosphate heads 

      ___E__

Glycolipids 

Match the cell membrane structure or its function with the correct letter from the cell membrane diagram.


Letter

Structure/Function

Letter

Structure/Function

G_

Attracts water

___F__

Repels water

I___

Helps maintain flexibility of membrane

A_

Make up the bilayer

CE__

Involved in cell-to-cell recognition

B_

Help transport certain materials across the cell membrane

Osmosis and Tonicity

Use arrows to show the direction of water movement into or out of each cell.  

 OUT NO                                                              IN






Match the 


Match each  description with the osmotic condition:

A. Isotonic

C___ solution with a lower solute concentration

A_ solution in which the solute concentration is the same

B. Hypertonic

B_ solution with a higher solute concentration

C. Hypotonic

c_ solution with a high water concentration

Complete the table by checking the correct column for each statement:

Statement

Isotonic solution

Hypotonic solution

Hypertonic solution

Causes a cell to swell

x

Doesn’t change the shape of a cell

x

Causes osmosis

x

x

Causes a cell to shrink

x

Transport Requiring Energy

What type of transport is represented by the picture? __Active/ Pump

What energy is being used? ___ATP energy

In which direction (concentration gradient), is the movement occurring? 

Low to high

Against the concentration gradient


Match the term with its correct description:

  1. energy

  2. active transport

  3. facilitated diffusion

  4. channel protein

  5. carrier protein

  6. passive transport

D_ Transport protein that provides a tube-like opening in the plasma membrane through which particles can diffuse

A_ Is used during active transport but not passive transport

F_ Particle movement from an area of higher concentration to an area of lower concentration

C_ A form of passive transport that uses transport proteins

B_ Particle movement from an area of lower concentration to an area of higher concentration

E_ Transport protein that changes shape when a particle binds with it





Write the letter of the definition next to the correct vocabulary word. 


  H_ lipid bilayer 

  E_ selectively permeable 

  D_ passive transport 

  ___B_ diffusion 

  G_ facilitated diffusion 

  A_ osmosis 

  C___ aquaporin 

  F_ active transport 

A) movement of water through a selectively permeable membrane 

B) process by which particles move randomly from high to low concentration until equilibrium is reached 

C) protein channel in the cell membrane that allows water to pass through 

D) type of cellular transport that does not use cellular energy 

E) some substances can pass through and others cannot 

F) type of cellular transport requiring cellular energy 

G) process through which molecules pass through special protein channels in the cell membrane without using energy 

H) double-layered sheet that gives the cell membrane a strong, flexible barrier