Cytology Flashcards
(34 cards)
Squamous
Flat and thin
Cuboidal
Cube
Columnar
Tall and thin
Basic components of a cell
Cell membrane
Cytoskeleton
Cytoplasm
Cytoplasm composition
Cytosol
Organelles
Cell surface components
Plasma membrane
Surface extensions
Plasma membrane functions
Shape
Protection
Communication
Transport
Membrane lipids
Phospholipid bilayer
- semi permeable
Cholesterol
Glycolipids
Membrane protein functions
Receptors
Enzymes
Ion channels
Gated ion channels
Cell identity markers
Cell adhesion molecules
Surface extensions
Microvilli
Cilia
Flagella
Membrane transport mechanisms
Active
Passive
Organelle types
Nucleus
Endoplasmic reticulum
Ribosomes
Golgi complex
Lysosomes
Peroxisomes
Mitochondria
Centrioles
Cytosol
Fluid in the cell (intercellular fluid)
Organelles
Facilitate specific functions
Microvilli
Increase surface area (absorption)
Cilia
Non-motile (sensory)
Motile (propel fluid)
Flagella
Tail of sperm
Membrane transport mechanisms
Filtration
Simple diffusion
Osmosis
Carrier-mediated transport
- facilitated diffusion
- active transport
Vesicular transport
- endocytosis
- exocytosis
Filtration
Pressure
Simple diffusion
High concentration to low
Osmosis
High water concentration to low
Carrier-mediated transport
- facilitated diffusion
- active transport
Uses transmembrane proteins
- through protein w no ATP
- through protein w ATP
Vesicular transport
- endocytosis
- exocytosis
Transports large molecules
(Uses ATP)
- moves substances into cell
- moves substances out of cell
Nucleus
- Control center
- Contains DNA
- Surrounded by nuclear envelope
- contains nucleolus