Download Unit 4 Cell Transport Notes Packet - Dallastown Area School District

Unit 4 = Cell Transport
Honors Biology
Cell Membrane Structure and Processes that
Transport Molecules across the Membrane which aid in maintaining
homeostasis
A. The Structure of the Cell Membrane
1. Refer to as the Fluid Mosaic Model
2. Diagram of the Cell Membrane Structure:
C
D
Letter A. The Phospholipid Bilayer
B
A
Letter B. A Transport Protein (also called Channel or Carrier Proteins)
Letter C. Receptor Proteins
Letter D = Recognition Proteins (glycoproteins with carbohydrate branches)
Cholesterol =
B.
Processes that Transport Materials across the Cell Membrane
(to allow materials either into or out of a cell)
*Two categories of Processes = _______________ process VS ________________ Processes*
1. _____________________ Transport
Examples of Processes that are forms of Passive Transport:
a. _____________________
Examples in Everyday Life =
Example in a Cell = A Human Muscle Cell Respiring Aerobically:
b. _________________ =
Example #1 = A Red Blood Cell in an _________________ Solution
Outside of the cell =
Example #2 = A Red Blood Cell in a _________________ Solution
Outside of the cell =
Example #3 = A Red Blood Cell in a _________________ Solution
Outside of the cell =
c. _________________ _____________ =
Molecules of _____________
Exterior of the Cell
High
Phospholipid
Bilayer
Cytoplasm of the Cell
Low
Step #1
2. Active Transport =
Step #2
Step #3
Types of Active Transport:
a. Endocytosis:
Example = Transport of Amino Acids (A) into the cell after the digestion of a
protein
Step 1
Step 2
1. Phagocytosis =
Example: Phagocytosis in an Amoeba
Step 3
A.
B.
C.
Example: A White Blood Cell engulfing bacteria (H) and destroying them
Step 1
Step 2
2. Pinocytosis
Step 3
B. Exocytosis
Surface Area to Volume Ratio as a Limit to Cell Size: