Cell organelles Flashcards
What are the types of endoplasmic reticulum?
Rough
Smooth
What happens in the rough endoplasmic reticulum?
Translation and folding of new proteins
Manufacture of lysosomal enzymes
Site of N linked glycosylation
What happens in the smooth endoplasmic reticulum?
Steroid and lipid synthesis
What is the function of the Golgi apparatus?
Modifies, sorts and packages molecules designated for secretion
How does the Golgi apparatus designate proteins for transfer to lysosome?
Addition of mannose-6-phosphate
What is the function of mitochondria?
Aerobic respiration
What is the function of the nucleus?
DNA maintenance
RNA transcription and splicing
What is the function f the lysosome?
Breakdown of large molecules such as proteins and polysaccharides
What is the function of the nucleolus?
Ribosome production
What is the function of the ribosome?
Translation of RNA into proteins
What is the function of the peroxisome?
Catabolism of very long chain fatty acids and amino acids
What is the function of the proteasome?
Degradation of protein molecules
How does the proteasome know which proteins to break down?
Those tagged with ubiquitin