Cell organelles

Question 1

FUNCTION OF rough ENDOPLASTIC RETICULUM ?

Answer 1

translation and folding of new proteins

manufacture of lysosomal enzymes

site of N-linked glycosylation

Question 2

FUNCTION OF smooth ENDOPLASTIC RETICULUM ?

Answer 2

steroid, lipid synthesis

Question 3

examples of cells with extensive RER

Answer 3

pancreatic cells, goblet cells, plasma cells

Question 4

examples of cells with extensive SER

Answer 4

adrenal cortex, hepatocytes, testes, ovaries

Question 5

Golgi apparatus Modifies, sorts, and packages molecules that are destined for cell secretion what other function do they have ?

Answer 5

addition of mannose-6-phosphate to proteins

designates transport to lysosome

Question 6

Mitochondrion Contains mitochondrial genome as ?

Answer 6

circular DNA

Question 7

Nucleus role ?

Answer 7

DNA maintenance

RNA transcription

RNA splicing ( removes the intervening, non-coding sequences of genes (introns) from pre-mRNA and joins the protein-coding sequences (exons)

Question 8

Lysosome role ?

Answer 8

Breakdown of large molecules such as proteins and polysaccharides

Question 9

Nucleolus role ?

Answer 9

Ribosome production

Question 10

Ribosome role ?

Answer 10

Translation of RNA into proteins

Question 11

Peroxisome

Answer 11

Catabolism of very long chain fatty acids and amino acids
Results in the formation of hydrogen peroxide

Question 12

Proteasome

Answer 12

Along with the lysosome pathway involved in degradation of protein molecules that have been tagged with ubiquitin