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Moving Cellular Materials
Cell Membranes Selectively permeable Allow only some things to enter and leave.
Passive Transport Movement of material through the membrane without using energy.
Types of Passive Transport Diffusion Random movement of particles from areas of more to areas of less. Equilibrium – equal particles in each area.
Types of Passive Transport Osmosis The diffusion of water through the cell membrane. Example: Plants
Types of Passive Transport Facilitated Diffusion Movement of materials through a transport protein located in the membrane.
Active Transport Moving materials through a cell membrane with the use of energy. Requires transport proteins.
Movement of Very Large Particles Endocytosis Cell membrane surrounds the particle. Section of the membrane pinches off to form a vesicle.
Movement of Very Large Particles Exocytosis Opposite process as endocytosis. Contents of the vesicle are released outside the membrane.
CELL PROCESSES What keeps them alive? Moving Cellular Materials Cells have a _____ membrane that regulates what goes into or out of the cell. Passive.
Cell Environment Notes p Selectively permeable Some things can pass through the cell membrane & some cant Some things can pass through the cell.
Passive Transport Substances cross the cell membrane without the cell expending energy.
* Protects the cell and regulates what comes in and out * Cell Membrane.
Homeostasis depends in part on appropriate movement of materials across the cell membrane. Homeostasis refers to the necessity of an organism to maintain.
Diffusion and Osmosis: How does stuff get into and out of a cell? The Cell in its Environment Ch 7, Section 2 L3 Biology.
1 Gateway to the Cell. 2 Protective barrier Regulate transport in & out of cell (selectively permeable) Regulate transport in & out of cell (selectively.
Cell Transport Chpt 3-2. Science Words and Objectives Diffusion Equilibrium Osmosis Passive Transport Active Transport Endocytosis Excytosis Explain the.
Cellular Transport. Review of Diffusion Movement of particles from an area of higher concentration to an area of lower concentration.
Biology AHSGE Standard II- Cell Processes. Biology AHSGE Standard 2. Describe cell processes necessary for achieving homeostasis, including active and.
Cellular Transport How cells interact with the outside world Chapter 7-3 Pgs
2.4.4: Define diffusion and osmosis Diffusion: The passive movement of particles from a region of high concentration to a region of low concentration until.
Section 3-3, 3-4, 3-5 Movement across the c ell membrane Write everything that is underlined.
Science AHSGE Standard V-1, Part 2- Cell Processes.
Cell membranes and exchange of material HBS 3A. Exchange of material Occurs at the cell membrane Involves the intake of essential materials eg nutrients.
Cells and Their Environment Chapter Passive Transport Part 1: Diffusion Remember: Living things need to maintain homeostasis (responds to external.
Cell Membrane & Cellular Transport Homeostasis – the maintenance of internal stable conditions The cell membrane keeps the cell in balance.
7-3 Movement through the Membrane A. The cell membrane is semipermeable - only certain molecules can get through B. Passive transport: no energy required.
Westside High School 9 th Grade Biology Crossing the Plasma Membrane.
Chapter 8 – Cellular Transport Plasma Membrane Selectively permeable Controls what passes through the membrane Made of: phospholipids, proteins, and.
End Show Slide 1 of 47 Copyright Pearson Prentice Hall Biology.
MOVING MATERIALS INTO AND OUT OF CELLS. MATERIAL MOVEMENT PASSIVE TRANSPORT ACTIVE TRANSPORT.
How do cells maintain balance? Cells need to maintain a balance by controlling material that move in & out of the cell HOMEOSTASIS.
Structure (Plasma Membrane) A lipid bilayer(2 layers of lipids) with a variety of proteins.
Cell Membrane Transport. GPS Standards SAP1. Students will analyze anatomical structures in relationship to their physiological functions. d.Relate cellular.
Cell Transport Study Guide. 1. Which forms of transport do NOT require energy? Diffusion Osmosis Facilitated Diffusion *All of these are passive!
Cell Boundaries All cells are surrounded by a thin, flexible barrier known as the cell membrane. Many cells also produce a strong supporting layer around.
The Cell in Action Guided Notes. What you should already know… Cell membrane – a phospholipid layer that covers a cells surface; acts as a barrier between.
Chapter 6.3: Membranes regulate the traffic of molecules College Prep Biology Mr. Martino.
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