CELLS 3.2 Cell Transport- Pre AP Biology Study Notes - New Syllabus.
CELLS 3.2 Cell Transport- Pre AP Biology Study Notes
CELLS 3.2 Cell Transport- Pre AP Biology Study Notes – New Syllabus.
LEARNING OBJECTIVE
CELLS 3.2(a) Use data to investigate how various solutes and/or solvents passively move across membranes.
CELLS 3.2(b) Explain how materials move into or out of the cell across the cell membrane.
CELLS 3.2(c) Create and/or use representations and/or models to predict the movement of solutes into or out of the cell.
Key Concepts:
- CELLS 3.2.1 Cells depend on the structure of the cell membrane to move materials into and out of the cell in order to maintain dynamic homeostasis.
a. Passive transport involves the movement of solutes across the membrane along the concentration gradient, without the use of additional energy.
b. Active transport involves the movement of solutes across the membrane against their concentration gradients with the use of additional energy.
c. Bulk transport of molecules across the membrane is accomplished using endocytosis or exocytosis.