Chapter 7 Organelles Flashcards
Nucleus membrane
double envelope
openings called nuclear pores
Nucleus components
chromosomes
nuclear lamina
Nucleus function
information storage and transmission
ribosome subunit assembly
structural support
Ribosome membrane
none
Ribosome components?
complex of RNA and proteins
Ribosome function
protein synthesis
Endoplasmic reticulum rough membrane
single
contains receptors for entry of selected proteins
Endoplasmic reticulum rough components
network of branching sacs
ribosomes associated
Endoplasmic reticulum rough function
protein synthesis and processing
Endoplasmic reticulum smooth membrane
single
contains enzymesfor synthesizing of phospholipids
Endoplasmic reticulum smooth components
network of branching sacs
enzymes for synthesizing or modifying lipids
Endoplasmic reticulum smooth function
lipid synthesis and processing
Golgi apparatus membrane
single
contains receptors for products of rough ER
Golgfi apparatus components
distinct cisternae, oftern as stack of flattened vesicles
Golgi apparatus function
protein, lipid, and carbohydrate processing
lysosomes membrane
single
contains transporters for selected molecules and proton pumps
lysosome component
acid hydrolases (catalyzes hydrolysis reactions)
lysosome function
digestion and recycling
vacuoles membrane
single
contains transporters for selected moelcules
vacuole components
pigments, hydrolases, oils, water, carbohydrates, toxins,
vacuole function
storage, digestion, and recycling
peroxisomes membrane
single
contains transporters for selected macromolecules
peroxisomes components
enzymes that catalyze oxidation reactions
catalase(processes peroxide)
peroxisomes function
oxidation of fatty acids, ethanol, or other compounds