Chapter 4.7: Extracellular Structures and Cell Movement Flashcards
Define myosin
one of the two protein components of myofilaments (the other is actin); a principal component of vertebrate muscle
What is one of the two protein components of myofilaments (the other is actin); a principal component of vertebrate muscle?
myosin
What does the flagellum of eukaryotic cells consit of?
o Eukaryotic cells flagellum consists of a circle of nine microtubule pairs surrounding two central microtubules
Define basal body
a self-reproducing, cylindrical, cytoplasmic organelle composed of nine triplets of microtubules from which the flagella or cilia arise
What is a self-reproducing, cylindrical, cytoplasmic organelle composed of nine triplets of microtubules from which the flagella or cilia arise?
basal body
Define cilium
a short cellular projection from the surface of a eukaryotic cell
What is a short cellular projection from the surface of a eukaryotic cell?
cilium
What are the cell walls in plants and protist composed of?
cellulose
What are the cell walls in fungi composed of?
chitin
Define primary wall (plant cells)
in plants, the wall later deposited during the period of cell expansion
What is in plants, the wall later deposited during the period of cell expansion?
primary wall
Define middle lamella
the layer of intercellular material, rich in pectic compounds, that cements together the primary walls of adjacent plant cells
What is the layer of intercellular material, rich in pectic compounds, that cements together the primary walls of adjacent plant cells?
middle lamella
Define secondary cell wall
in plants, the innermost layer of the cell wall
What is in plants, the innermost layer of the cell wall?
secondary cell wall
