quiz 2.1

Question 1

periplasmic space

Answer 1

space between cell membrane and outer membrane in gram neg

Question 2

spirochetes

Answer 2

corkscrew motion, endoflagella, wrapped tightly around periplasm, gram neg

Question 3

gliding motility

Answer 3

secretion of polysaccharides like a snail with mucous, facilitated by motor and adhesive proteins along helical track, not in pathogenic organisms

Question 4

twitching motility

Answer 4

utilizing type IV fimbrae from a pole to grab and pull

Question 5

why polymerize actin

Answer 5

bacteria gain proteins that allow them to harvest and polymerize your actin, adapting to mover from cell to cell undetected

Question 6

cytoplasm

Answer 6

dense gelatinous solutions comprised mainly of water and supplemented with dissolved gases, amino acids, sugars and salts

Question 7

nucleoid

Answer 7

are of the cell where DNA is aggregated, euks have nucs, proks have nucleoids

Question 8

plasmids

Answer 8

extrachromosomal pieces of DNA

Question 9

ribosomes

Answer 9

sites of proteins synthesis (Svedberg units)

Question 10

Svedberg units

Answer 10

(S) gives estimation of size, shape, and density based on sedimentation rate

Question 11

prokaryotic S

Answer 11

70S (large 50S ribosomal subunit and small 30S ribosomal subunit)

Question 12

eukaryotic S

Answer 12

80S (large 60S ribosomal subunit and small 40S ribosomal subunit)