Chapter 3 Notes Flashcards
Composite cell
Includes many known cell structures
Most cells contain
Nucleus, cytoplasm, and cell membrane
Organelles
Carry on specific vital functions
Organelles controlled by
Nucleus
Cell membrane
Envelope that surrounds the cells contents
Metabolic reactions
Take place on surface of nucleus
General characteristics of cell membrane
Maintains wholeness of cell, controls entrance and exit of substances, selectively permeable
Selectively permeable
Allows certain substances to pass, while excluding others
Permeable
Allows free passage of substances
Membrane makeup
Fats with some proteins and carbs
Membrane composed mainly of
Lipids and proteins
Membrane framework
Double layer of phospholipid molecules
Membrane includes
Phosphate group and 2 fatty acids bound to a glycerol molecule
Fatty acids
Make up interior of the membrane
Cytoplasm contains
Organelles