Chapter 3 Cellular Form and Function Flashcards
Cells that connect body parts form linings, or transport gases
Epithelial Cells
Cells that move organs and body parts
Skeletal muscle cells
Cells that stores nutrients
Fat cell
Cell that fights disease
Macrophage
Cells that gathers information and control functions
Nerve cell
Cell of reproduction
sperm
____ + ____ = Cytoplasm
Cytosol + Organelles
Explain the basic cell structure
What are functions of membrane protiens?
Name the three membrane junctions
- Tight junction
- Desmosome
- Gap Junction
Junction that prevents fluids and most molecules from moving between cells
Tight Junctions
“Rivets” that anchor cells together
Desmosomes
Transmembrane proteins form pores that allow small molecules to pass from cell to cell
Connexon
Connexon are transmembrane proteins that form___ that allow small molecules to pass from cell to cell
pores
Gap junctions allow the spread of ions between ___- or ____ muscle cells
cardiac or smooth
Form channels between adjacent cells
Gap Junction
What is a microvilli?
Hairlike processes 7-10 um long
cilia
What is nonmotile cilium?
What is motile cilia?
Plasma membranes are ______ _______
Selectively permeable
Explain membrane transport
How does filtration work?
What are the types and subtypes of membrane transport?
Explain passive processes
- No cellular energy (ATP) required
- Substance moves down/ with its concentration gradient
Explain active processes
- Energy (ATP) required
- substance usually moving up/against its concetration gradient
- occurs only in living organisms
- happens naturally
What are the three types of passive transport?
- simple diffusion
- facilitated diffusion
- osmosis