Chapter 7 Key Concepts Flashcards
1
Q
7.1
A
Cellular membranes are fluid mosaics of lipids and proteins
2
Q
7.2
A
Membrane structure results in selective permeability
3
Q
7.3
A
Passive transport is diffusion of a substance across a membrane with no energy investment
4
Q
7.4
A
Active transport uses energy to move solutes against their gradients
5
Q
7.5
A
Bulk transport across the plasma membrane occurs by exocytosis and endocytosis
6
Q
What are six major functions that are performed by proteins of the plasma membrane?
A
Transport, Enzymatic activity, Signal transduction, cell to cell recognition, Inter-cellular joining, and attachment to the cytoskeleton and extra- cellular matrix.
