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
facilitated diffusion
DJ the movement of molecules across a membrane with the help of PROTEINS needs NO ENERGY.
100
exocytosis
release of substances out a cell by the fusion of a vesicle with the membrane requires 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
endocytosis, exocytosis, pinocytosis, and phagocytosis
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
Cell Membrane or Plasma membrane
The organelle that surrounds the cell and controls what goes in and out.
300
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
Dj water moves from high to low concentration
400
Which does NOT require energy to occur?
-Passive Transport
-Active Transport
-Endocytosis
-Exocytosis
T Passive Transport !!!!
400
Which part of the cell controls the movement of substances?
-mitochondria
-cell membrane
-chloroplast
-nucleus
cell membrane !!!
400
Semipermeable, selectively permeable
DJ Only certain molecules can cross !!!!
400
main purpose of cell membrane
T movement of substances in and out of cell
500
The diffusion of water through a semi-permeable membrane is called?
-Osmosis
-Cell wall
-Diffusion
-Respiration
Osmosis !!!
500
What are the 3 types of active transport?
-Riding a bike, Running through the mountains, walking on the beach
-Osmosis, Diffusion, Facilitated Diffusion
-Sodium/potassium Pump, Endocytosis, Exocytosis
-Throwing a ball, Playing tennis, driving a car
Sodium/potassium Pump, Endocytosis, 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
endocytosis
the process by which a cell takes in a substance by surrounding it with the cell membrane requires ATP
500
protein channels
part of the cell membrane, help transport materials in or out of the cell