cell structure and organelles

Question 1

Fimbriae

Answer 1

Fxn: to stick to surfaces or each other
small-bristle like fibers

Question 2

Flagella

Answer 2

hollow rods that are similar to microtubules (much smaller; fxn involves movement of the cell
Move by rotation and made up of multiple proteins

Question 3

Glycocalyx

Answer 3

Stick to substances; biofilm and capsules are both examples of it
Made of polysaccharides

Question 4

Plasma membrane

Answer 4

selective barrier membrane and maintain cell shape; biological membrane has double layer of phospholipids and other lipids; external membrane that surrounds the cell

Question 5

Ribosomes

Answer 5

Protein synthesis (free)

Question 6

Nucleiod

Answer 6

Region in the cytoplasm that holds the chromosomes/chromatin
fxn: localize DNA and coil around basic proteins

Question 7

Cell wall

Answer 7

bacterial structure and support; osmotic pressure

Question 8

Bacterial cytoskeleton

Answer 8

Fxn: cell shape and division
Helical ribbons beneath cytoplasmic membrane
Long polymer of proteins similar to actin

Question 9

3 structures unique to bacteria

Answer 9

fimbriae, nucleoid, glycocalyx

Question 10

structures shared with eukaryotes

Answer 10

Ribosomes, cell wall, flagella, plasma membrane, cytoskeleton

Question 11

Unique to prokaryotes

Answer 11

no membrane-bounded organelles, smaller than eukaryotes, and no nucleus

Question 12

4 structures found in all cells

Answer 12

Ribosomes, plasma membrane, Chromosomes, cytosol (cytoplasm)