learning target: to understand how plant and animal cell differ in cell organelles and the...
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Learning Target: Know the structure and function of the cell membrane including lipid bilayer, protein channels and pumps. Learning Outcome: I will complete cell membrane model.TRANSCRIPT
Learning Target:To understand how plant and animal cell differ in cell organelles and the functions of those organelles.
Learning Outcome:I will complete the Plant and Animal Cell Lab.
Create detailed drawing of all of what you see, not just one cell. Identify the following:
Animal Cell – Nucleus, Cell Membrane, Cytoplasm and Endoplasmic Reticulum.
Plant Cell – Cell Membrane, Cell Wall, Chloroplast, Water Vacuole, and Nucleus (?).
*See if the chloroplast are moving.
Learning Target:Know the structure and function of the cell membrane including lipid bilayer, protein channels and pumps.
Learning Outcome:I will complete cell membrane model.
Cell Membrane Section 7-3
Function: To regulate what enters and leaves the cell and aids in protection and support.
1. Lipid bilayer – 2 layers
2. Proteins PumpsChannels
3. Carbohydrates – attached to proteins
Act as name tags or ID cards so cells can recognize each other
Learning Target:Be able to describe the process of osmosis as it occurs in hypertonic, hypotonic and isotonic solutions.
Learning Outcome:I will complete the “Observing Osmosis Lab” write-up.
Draw a diagram that answers the following questions:
(1)What substances does the cell allow to go in and out? (labeled arrows)
(2)What substances does the cell keep in or out (circled labels).
Diffusion:• The
movement of molecules from high to low concentration.
Osmosis:• The diffusion of WATER through a
selectively permeable membrane
Isotonic Solution:• Equilibrium• Water will move
both in and out• Cell will not
change shape
Hypertonic Solution: (Above strength)• Solution has a higher solute concentration than the
cell.• Water will move out of cell• Cell will shrink
Hypotonic Solution: (Below strength)• Solution has a lower solute concentration than the cell.• Water will move into the cell• Cell will swell
Facilitated Diffusion:• Use of a protein
channel to cross through a cell membrane
Active Transport:•Sometimes materials need to move in opposite concentration gradients (low to high)
•Requires energyEndocytosis (into cell)Phagocytosis (takes food in)Pinocytosis (takes water in)
Exocytosis (out of cell)
Active Transport: Notice the energy (ATP) required to move molecules AGAINST the gradient!! (low to high)
Exocytosishttps://www.youtube.com/watch?v=U9pvm_4-bHgEndocytosishttps://www.youtube.com/watch?v=W6rnhiMxtKU