Cell Membranes - Transport

Cell Membranes - Transport

Lesson Objectives

• describe and explain the processes of diffusion, facilitated

  diffusion, osmosis, active transport, endocytosis and

  exocytosis

Multiple Choice

A ______________ is composed of a phosphate and glycerol head and 2 fatty acid chain tails. 

• phospholipid 
• Carbohydrate
• Cholesterol 
• Protein 

Multiple Choice

A phospholipid has 2 parts. What are they called?

• Hydrophilic Head, Hydrophobic Tail

• Hydrophobic Head, Hydrophilic Tail

• Hydrophilic Head, Hydrophilic Tail

• Hydrophobic Head, Hydrophobic Tail

Multiple Choice

Hydrophilic portion of cell membrane?

• A
• C
• D
• E 

Multiple Choice

Hydrophobic region of the cell membrane?

• E
• B
• C
• A 

Multiple Choice

The majority of the cell membrane is made of which macromolecule?

• Lipids
• Carbs
• Proteins
• Nucleic acids

Multiple Choice

"Water Fearing" 

• Hydrophobic
• Hydrophilic 
• Hydroelectric 
• Hydroloric

Multiple Choice

"Water Loving"

• Hydrophobic
• Hydrophilic 
• Hydroelectric 
• Hydroloric

Multiple Choice

Another term for maintaining an internal balance is...

• Equality

• Equential

• Homeostasis

• Balance

Multiple Choice

Which body system controls the body to maintain homeostasis?

• excretory

• nervous

• circulatory

• skeletal

Multiple Choice

What is a disease where sufferers cannot control their blood glucose levels?

• Diabetes
• Influenza
• Cholera
• Cystic fibrosis

Multiple Choice

When you are cold, you shiver and your blood vessels contract, which warms you up. When you are hot, you sweat and your blood vessels expand, which cools you down.  

• Positive Feedback Response
• Negative Feedback Loop 

Multiple Choice

Which of the following macromolecules is NOT part of the cell membrane?

• Lipids
• Carbohydrates
• Proteins
• Nucleic Acids

Multiple Choice

How many layers thick is the lipid bilayer?

• 1
• 2
• 3
• 4

Open Ended

Outline the potential roles of cell surface membranes.

Multiple Choice

What is a difference between diffusion and facilitated diffusion?

• movement of particles from [high] to [low]

• a protein "helper"

• movement of particles from [low] to [high]

• energy

Multiple Choice

Facilitated diffusion needs what to get particles from one side of the membrane to the other?

• a membrane-spanning protein

• a surface protein

• a phospholipid

• a carbohydrate

Multiple Choice

An example of facilitated diffusion is

• CO₂ and O₂ exchange in the lungs

• Glucose transport

• Na⁺ / K⁺ Pumps

• Endocytosis

Multiple Choice

What is the movement of particles with the concentration gradient using protein "helpers"?

• diffusion

• facilitated diffusion

• active transport

• enzymatic reactions

Multiple Choice

An example of diffusion is

• CO₂ and O₂ exchange in the lungs

• Glucose transport

• Na⁺ / K⁺ Pumps

• Exocytosis

Multiple Choice

Passive Transport is the movement of particles _________ the concentration gradient.

• with

• against

• opposing

• throughout

Multiple Choice

Passive Transport uses ____ energy

• no

• a lot of

• a little bit of

• some

Multiple Choice

Diffusion & Facilitated Diffusion are both __________ transport.

• Passive

• Active

• Easy

• Free

Multiple Choice

The picture below is an example of _________________.

• osmosis

• isotonic

• diffusion

• active transport

Multiple Choice

When both inside and outside of a cell have the same amount of water it is said that the cell has reached a state of

• Osmosis
• Diffusion
• Equilibrium

Multiple Choice

ISO means...

• Low

• A lot

• Equal

• Mammal

Multiple Choice

A blood cell is placed into the jar, as seen. Where will the water go?

• Into the cell

• Out of the cell

• Equally in & out - it's isotonic

• The water is a lie

Multiple Choice

Where will the water go?

• Into the cell

• Out of the cell

• Equally in & out - it's isotonic

• There is no water

Multiple Choice

If there is 5 percent water inside a cell and 5 percent water outside a cell

• more water will move inside the cell

• more water will move outside the cell

• There will be no net movement of water, it moves into and out of the cell at the same time.

Multiple Choice

Which of the following is not a type of passive transport?

• Osmosis
• Diffusion
• Endocytosis
• Facilitated Diffusion

Multiple Choice

This picture represents which type of cellular transport?

• passive transport
• endocytosis
• exocytosis
• osmosis

Multiple Choice

A type of active transport that releases particles that were enclosed from a cell when the membrane of the vesicle fuses with that of the cell membrane

• Exocytosis
• Osmosis
• Mitosis
• Endoyctosis

Multiple Choice

Large particles being encased in a vesicle and brought into the cell.

• endocytosis
• exocytosis
• passive transport
• active transport

Multiple Choice

In this image, the cell is using which type of molecular transport?

• Osmosis
• Diffusion 
• Endocytosis
• Exocytosis 

Multiple Choice

Active transport _______ and is the movement of a substance from _____ to _____ concentration

• requires energy, high to low
• requires no energy, low to high
•  requires no energy, high to low
•  requires energy, low to high

Multiple Choice

Exocytosis is the movement of

• any type of substance from outside the cell to the inside of the cell. 
• very large substances from outside the cell to the inside of the cell. 
• any type of substance from inside the cell to the outside.
• very large substances from inside the cell to the outside.