Monday, 10/12/15

1
Monday, 10/12/15

• 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.

2
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.

3
Tuesday, 10/13/15

• 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.

4
Chapter 7 Notes

• Cell Membrane Section 7-3

5
Function of Cell Membrane

• Function To regulate what enters and leaves the
  cell and aids in protection and support.

6
Structure of the Cell membrane

• 1. Lipid bilayer 2 layers
• 2. Proteins
• Pumps
• Channels
• 3. Carbohydrates attached to proteins
• Act as name tags or ID cards so cells can
  recognize each other

7
Wednesday, 10/15/14

• 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.

8

• Draw a diagram that answers the following
  questions
• What substances does the cell allow to go in and
  out? (labeled arrows)
• What substances does the cell keep in or out
  (circled labels).

9
Movement through cell boundaries

• Diffusion
• The movement of molecules from high to low
  concentration.

10

• Osmosis
• The diffusion of WATER through a selectively
  permeable membrane

11
Concentration Levels

• Isotonic Solution
• Equilibrium
• Water will move both in and out
• Cell will not change shape

12

• 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

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14

• Facilitated Diffusion
• Use of a protein channel to cross through a cell
  membrane

15

• Active Transport
• Sometimes materials need to move in opposite
  concentration gradients (low to high)
• Requires energy
• Endocytosis (into cell)
• Phagocytosis (takes food in)
• Pinocytosis (takes water in)
• Exocytosis (out of cell)

16
Active Transport Notice the energy (ATP)
required to move molecules AGAINST the gradient!!
(low to high)
17

• Exocytosis
• https//www.youtube.com/watch?vU9pvm_4-bHg
• Endocytosis
• https//www.youtube.com/watch?vW6rnhiMxtKU