21. Fig. 7-7
Fibers of
extracellular
matrix (ECM)
Glyco- Carbohydrate
protein
Glycolipid
EXTRACELLULAR
SIDE OF
MEMBRANE
Cholesterol
Microfilaments Peripheral
of cytoskeleton proteins
Integral
protein
CYTOPLASMIC SIDE
OF MEMBRANE
43. Fig. 7-14
50 µm
Filling vacuole
(a) A contractile vacuole fills with fluid that enters from
a system of canals radiating throughout the cytoplasm.
Contracting vacuole
(b) When full, the vacuole and canals contract, expelling
fluid from the cell.
67. Fig. 7-20
PHAGOCYTOSIS
EXTRACELLULAR CYTOPLASM 1 µm
FLUID
Pseudopodium
Pseudopodium
of amoeba
“Food”or
other particle Bacterium
Food
vacuole Food vacuole
An amoeba engulfing a bacterium
via phagocytosis (TEM)
PINOCYTOSIS
0.5 µm
Plasma
membrane Pinocytosis vesicles
forming (arrows) in
a cell lining a small
blood vessel (TEM)
Vesicle
RECEPTOR-MEDIATED ENDOCYTOSIS
Coat protein
Receptor Coated
vesicle
Coated
pit
Ligand
A coated pit
Coat and a coated
protein vesicle formed
during
receptor-
mediated
endocytosis
(TEMs)
Plasma
membrane
0.25 µm
68. Fig. 7-20a
PHAGOCYTOSIS
EXTRACELLULAR CYTOPLASM 1 µm
FLUID
Pseudopodium
Pseudopodium
of amoeba
“Food” or
other particle Bacterium
Food
vacuole Food vacuole
An amoeba engulfing a bacterium
via phagocytosis (TEM)
72. Fig. 7-20c
RECEPTOR-MEDIATED ENDOCYTOSIS
Coat protein
Receptor Coated
vesicle
Coated
pit
Ligand
A coated pit
Coat and a coated
protein vesicle formed
during
receptor-
mediated
endocytosis
(TEMs)
Plasma
membrane
0.25 µm
73. Fig. 7-UN1
Passive transport:
Facilitated diffusion
Channel Carrier
protein protein