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CONCEPT 2: ANALYZING THE STRUCTURE AND FUNCTION OF THE CELL MEMBRANE
Chapter 7 in CampbellPg. 53-58, 294-296 in Holtzclaw
Practice Questions: #1-12, p 70-71; #1, 4, 6 p. 74/75; 1-2 p. 296 HoltzAll Concept Checkpoints (Ch 7), #1-9 p. 141 Campbell
ANALYZING THE STRUCTURE AND FUNCTION OF THE CELL MEMBRANE
You must know: Why membranes are selectively permeable. The role of phospholipids, proteins, and
carbohydrates in membranes. How water will move if a cell is placed in an
isotonic, hypertonic, or hypotonic solution and be able to predict the effect of different environments on the organism
How electrical gradients are formed and their function in cells
LAB: DIFFUSION AND OSMOSIS
Analysing your data with Standard Error of the Mean Calculations (SEM)
1.Compute the square of the difference between each value and the sample mean. 2.Add those values up.3.Divide the sum by N-1. (This is called the variance.)4.Take the square root to obtain the Standard Deviation (SD)5.The Standard Error of the Mean (SEM) is calculated by dividing the SD by the square root of N.
1.Compute the square of the difference between each value and the sample mean. 2.Add those values up.3.Divide the sum by N-1. (This is called the variance.)4.Take the square root to obtain the Standard Deviation (SD)5.The Standard Error of the Mean (SEM) is calculated by dividing the SD by the square root of N.
1.Compute the square of the difference between each value and the sample mean. 2.Add those values up.3.Divide the sum by N-1. (This is called the variance.)4.Take the square root to obtain the Standard Deviation (SD)5.The Standard Error of the Mean (SEM) is calculated by dividing the SD by the square root of N.
1.Compute the square of the difference between each value and the sample mean. 2.Add those values up.3.Divide the sum by N-1. (This is called the variance.)4.Take the square root to obtain the Standard Deviation (SD)5.The Standard Error of the Mean (SEM) is calculated by dividing the SD by the square root of N.
TRY THIS!
Describe the change in genetic variation of population between 0 and 6 months and provide reasoning based on the means and SEM.
TRY THIS!
Describe the change in genetic variation of population between 0 and 6 months and provide reasoning based on the means and SEM.
ANALYZING THE STRUCTURE AND FUNCTION OF THE CELL MEMBRANE
You must know: Why membranes are selectively permeable. The role of phospholipids, proteins, and
carbohydrates in membranes. How water will move if a cell is placed in an
isotonic, hypertonic, or hypotonic solution and be able to predict the effect of different environments on the organism
How electrical gradients are formed and their function in cells
What is the role of phospholipids, proteins, and carbohydrates in membranes?
Proteins Many
different functions
How electrical gradients are formed?
You need to know the following terms: Active transport Sodium-potassium pump Membrane potential Electrochemical gradient Electrogenic pump Cotransport Exocytosis Endocytosis
Phagocytosis Pinocytosis Receptor-mediated endocytosis
ACT OUT!
Exocytosis Endocytosis Simple Diffusion Facilitated Diffusion with a Channel Protein Active Transport with a Carrier Protein
Ex: transport of glucose from the filtrate in kidney tubules back to blood
Ex: sodium-potassium pump working in neurons (nerve cells) to create an electrochemical gradient
Ex: cotransport
CONCEPT 2: ANALYZING THE STRUCTURE AND FUNCTION OF THE CELL MEMBRANE
Chapter 7 in CampbellPg. 53-58, 294-296 in Holtzclaw
Practice Questions: #1-12, p 70-71; #1, 4, 6 p. 74/75; 1-2 p. 296 HoltzAll Concept Checkpoints (Ch 7), #1-9 p. 141 Campbell