5 Written questions
5 Matching questions
- transmission electron microscope
- a used to study the internal ultra structure of cells.
- b region that is not membrane enclosed
- c a complex of proteins and DNA
- d proteins that have carbohydrates covalently bonded to them
- e complexes mad of ribosomal RNA and protein
5 Multiple choice questions
- consists of a network of membranous tubules and called cisternae. Site for protein synthesis.
- structures that carry the genetic information
- encloses the nucleus, separating its contents from the cytoplasm.
- a semi fluid, jellylike substance
- the interior of a prokaryote cell
5 True/False questions
scanning electron microscope → an electron beam scans the surface of the sample. The beam excites electrons on the surface and these secondary electrons are detected. The result is the image
cell fractionation → takes cells apart and separates the major organelles and other sub cellular structures from one another.
smooth er → surface lacks ribosomes
nuclear lamina → a netlike array of protein filaments that maintains the shape of the nucleus by mechanically supporting the nuclear envelope
electron microscope → focuses a beam of electrons through the specimen or onto its surface.