Diffusion and Osmosis
Active Transport
Passive Transport
Vocab
Vocab
100
What is diffusion?
The movement of particles from a region of high to low concentration.
100
Which type of transport requires an input of energy?
-Passive Transport
-Osmosis
-Simple Diffusion
-Active Transport
Active Transport !!!
100
When the number of water molecules outside of the cell is greater than inside the cell, which will most likely occur?
-Molecules of water will NOT MOVE either way.
-Molecules of water will move OUT of the cell.
-Molecules of water will move INTO the cell.
-Molecules of water will EVAPORATE.
Molecules of water will move INTO the cell !!!
100
The movement of molecules across a membrane with the help of PROTEINS needs NO ENERGY.
facilitated diffusion
100
What does the mitochondria produce?
ATP
200
The picture below is an example of
-osmosis
-isotonic
-diffusion
-active transport
Diffusion !!!!!
200
Which form of active transport is being shown?
-Facilitated Diffusion
-Exocytosis
-Endocytosis
-Protein Pumps
Endocytosis !!!!!
200
A cell that is unable to import substances required to process chemical energy is most likely a result of a malfunctioning of the ____________________.
-cell membrane
-Golgi body
-endoplasmic reticulum
-nuclear envelope
cell membrane !!!!
200
Where does photosynthesis occur?
Plants !!!
200
What are these examples of:
endocytosis, exocytosis, protein pump
examples of ACTIVE transport requires energy
300
Osmosis is the movement of _____ across a membrane.
-food
-energy
-oxygen
-water
WATER !!!
300
Which form of active transport is being shown?
-Pinocytosis
-Endocytosis
-Exocytosis
-Osmosis
DJ Exocytosis !!!!
300
Cell membranes are described as selectively permeable.
-Student 1: Cell membranes prevent all materials from entering the cell.
-Student 2: Cell membranes only provide structural support for the cell.
-Student 3: Cell membranes regulate which substances can enter and exit the cell.
-Student 4: Cell membranes allow water and water-soluble substances to enter the cell.
Student 3: Cell membranes regulate which substances can enter and exit the cell !!!
300
The organelle that surrounds the cell and controls what goes in and out
Cell Membrane
300
What are these examples of?
diffusion, facilitated diffusion, and osmosis
forms of PASSIVE transport requires NO energy
400
During osmosis what happens?
-water moves from high to low concentration
-large or oddly shaped molecules move across a cell membrane
-water moves when energy is used
-proteins are built
Water moves from high to low concentration
400
Which does NOT require energy to occur?
-Passive Transport
-Active Transport
-Endocytosis
-Exocytosis
Passive Transport !!!!
400
Which part of the cell controls the movement of substances?
-mitochondria
-cell membrane
-chloroplast
-nucleus
cell membrane !!!
400
What does selectively permeable mean?
Only certain molecules can cross !!!!
400
Which process makes more ATP?
Anerobic respiration or Aerobic respiration
Aerobic respiration
500
The diffusion of water through a semi-permeable membrane is called?
-Osmosis
-Cell wall
-Diffusion
-Respiration
Osmosis !!!
500
What are the 2 types of active transport?
-Riding a bike and Running through the mountains
-Osmosis and Diffusion
-Protein Pump and Membrane vesicles (endocytosis and exocytosis)
-Throwing a ball and playing tennis
Protein Pump and Membrane vesicles (endocytosis and exocytosis)
500
All of the following are functions of a cell membrane EXCEPT
-surrounding and protecting the contents of the cell.
-releasing waste products from the cell.
-producing energy for the cell processes.
-allowing gases to enter the cell.
producing energy for the cell processes!
500
The tails in the cell membrane turn toward each other because they are.....
Hydrophobic or Hydrophilic
Hydrophobic
500
Part of the cell membrane that helps transport materials in or out of the cell without energy. Used in facilitated diffusion.
protein channels