Chapter 3 Flashcards
1
Q
Cell component made up of?
A
Plasma membrane
Cytoplasm
Cytoskeleton
Cytosol
2
Q
Plasma Membrane
A
Forms outer boundary of cell Maintains integrity Controls interactions with other cells Consists of -75% phospholipids -20% cholesterol molecules: increase stability -5% glycolipids Barrier between water-soluble substances Selectively permeable
3
Q
Receptor
A
Receive and bind chemical signals from other cells
4
Q
Enzymes
A
Allow for/speed up rate at which chemical reactions occur
5
Q
Channel
A
Allow water and solutes to move through membrane
6
Q
Carriers
A
Bind substance on one side of membrane and release it on the other
7
Q
ID markers
A
Enable immune system to know what belongs and what does not
8
Q
Cell
A
Adhesion molecules: link cells to each other
9
Q
Cytoplasm
A
Jelly like fluid surrounding organelles 75%-90% water Supported by -intracellular membranes -cytoskeleton
