Contents 

Review of Organelles

REVIEW 2
Photo 1
Photo 2
Photo 3
Photo 4

REVIEW   3
Photo 1
Photo 2
Photo 3
Photo 4

REVIEW 4
Photo 1
Photo 2
Photo 3
Photo 4

Review 3

Photo 1

Name the organelles indicated by the white lines (leading to the organelle) and link functions with regions. 1. Glycogen synthesis and stores. 2. ATP is produced by actions of elementary particles. 3.. Products of endocytosis are digested. 4. catalase activity at this site. 5. Contains DNA and ribosomes. Click on the photo to find the answers. 

Photo 2

2. This photo shows a negatively stained preparation of polysomes that are actively functioning. If you could visualize each component and product and knowing that they are functioning, what would you look for?

Click on the photo to get the answers.

Photo 3

The following is true of this organelle (list all that apply). 1) Site of glycogen synthesis. 2) Site of signal recognition peptide. 3) Ribosomal docking site  4) Site of protein sequestration and glycosylation 5) Site of mitochondrial RNA synthesis 6) Site of production and insertion of membrane proteins 7) Site of tRNA production 

Photo 4

A-D show a specialized membrane junction. The highest magnification in B shows that the junction was immunocytochemically labeled for a tag on conotoxin. The gold particles (dense, round dots) show the site of the tag (easier to detect than the conotoxin itself which is in the membrane). What junction is being depicted in these photos? 

 Click on the photo to find the answer.

To next review page