Transport in the Cell Active and Passive Transport
- Slides: 31
Transport in the Cell Active and Passive Transport -You and your partner will take notes on the note guide about transport. You will also watch videos to help you understand the information.
How can molecules move through cells? • Semi-permeable membrane: allows certain molecules to move in or out depending on their properties – Ex: if they are too big, they can’t go in easily • Membrane is made of (composition): – Bi-lipid layer • 2 layers of lipids – Proteins that transport materials across – Carbohydrates that act as identifiers
Before we begin you must understand…. • Concentration-how much solute is in a solvent • Why must molecules move? – To maintain homeostasis – Homeostasis-state of balance in which the internal body remains in a normal range – Molecules must move to maintain this
Fill out your noteguide for passive and active transport.
2 types of transport in the cell • Passive transport – Molecules move down the concentration gradient • Area where there is a lot of molecules to where there is very little – Energy involved: NO • Active transport – Molecules move up the concentration gradient • Area where there is a few molecules to where there is a lot – Energy involved: YES
Go to the following website and log in. Then return to the next slide of the power point for the specific URL • Go to www. brainpop. com • Log in using: • Username: cvbrainpop • Password: cheetah 1
Movie time: copy and paste this URL in the brain pop tab. • http: //www. brainpop. com/science/cellula rlifeandgenetics/passivetransport/ Username: cvbrainpop Password: cheetah 1
Next up is the types of passive transport. Take notes on diffusion and osmosis on your worksheet. -Make sure to include if it is active or passive transport.
Type of Passive Transport Diffusion-movement of molecules from an area of high concentration to an area of low concentration until equilibrium is reached – Equilibrium-equal distribution • Molecules will move equally after this is reached. – Simple molecules can move • Carbon dioxide, oxygen
Passive transport
Osmosis-Type of passive transport • Water moves from an area of high concentration to an area of low concentration – No energy involved – AKA: diffusion of water
Copy and paste the URL into the brain pop website. http: //www. brainpop. com/scie nce/matterandchemistry/diffusi on/ Username: cvbrainpop Password: cheetah 1
Solutions • Cells can be placed in different solutions. • These solutions can change the cell in different ways. • As you read, make note of what happens to the cell in each solution and why. • Take notes in the Types of solutions
Hypertonic and Hypotonic • Hypotonic-More water outside the cell than inside – Distilled water – Water comes into the cell – Why? To balance out the concentration of solutes • Hypertonic-More water inside the cell than outside – Salt water – Water leaves the cell – Why? to balance out the concentration of solutes
Isotonic • Molecules are equal inside and outside the cell – Molecules move evenly across the membrane
• Take a look at the notes for turgor pressure and plants. • Put these notes on the back of the wkst • Draw a picture to show what is going on.
Turgor Pressure and Plants • Water fills the vacuole and the contents of the cell are pushed against the cell wall • Produces turgor pressure • Gives the plant rigidity and the ability to stand erect
Next take notes on facilitate diffusion.
Facilitated Diffusion-3 rd type of passive transport • Molecules move from an area of high concentration to an area of low concentration with the help of a carrier protein – Molecules attach to a specific protein – The protein allows it to move through the membrane – Needed when molecules are too big or have an electrical charge (ions!!) • Glucose (large molecules), Na+, Ca+, K+, Cl-
Add extra notes to Active Transport if needed • Requires energy from the cell • Move molecules from an area of low concentration to high • The next slides are about the types of active transport
Endocytosis • Process for bringing things into the cell • Used for large particles (bigger than molecules, still microscopic) • Requires energy
Phagocytosis Pinocytosis • “Cell Drinking” • “Cell Eating” • Small bits of liquid • Very large or other substances particles taken in by cell (engulfed) taken in
Exocytosis • Process for moving large amount of material out a cell
Check out this brain pop Movie. http: //www. brainpop. com/scie nce/cellularlifeandgenetics/acti vetransport/ Username: cvbrainpop Password: cheetah 1
- Primary vs secondary active transport
- Active and passive transport
- Primary active transport vs secondary active transport
- Now answer the questions
- Passive transport vs active transport venn diagram
- Endocytosis vs exocytosis
- Active and passive transport
- Difference of active and passive transport
- Bioflix activity membrane transport active transport
- Isotonic in biology
- Passive vs active transport
- Is photosynthesis active or passive transport
- Active or passive transport
- Exocytosis active or passive transport
- Exocytosis
- Active vs passive transport
- Example of active transport in a cell
- Boolean operators
- Secondary active transport
- Facilitated diffusion and active transport
- Direct and indirect active transport
- Exocytosis
- Active and passive listening
- Active and passive voice class 11
- Active attack and passive attack
- Passive voice with infinitives
- Active and passive voice comic strip
- Past continuous tense active and passive voice
- What is active and passive reinforcement learning
- Passive reinforcement
- What is active range of motion
- Knee goniometry