Biology, 01.09.2019 14:30 ashleytorrao65541
Which component is present in some viruses but absent in others?
a.)nucleic acid
b.)capsid
c.)envelope
d.)cell membrane
Answers: 2
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In sexual reproducing animals once fertilization of the egg takes place, the exists as a single cell until cell division begins. a) egg b) larva c) sperm d) zygote
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Biology, 22.06.2019 04:30
Individuals do not compete directly for resources, but are prey for the same predator
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Which of the following organisms are capable of self-fertilization? a.plants b.tigers c.humans
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Biology, 22.06.2019 19:00
Penicillin is hydrolyzed and thereby rendered inactive by penicillinase (also known as β-lactamase), an enzyme present in some resistant bacteria. the mass of this enzyme in staphylococcus aureus is 29.6 kd. the amount of penicillin hydrolyzed in 1 minute in a 10-ml solution containing 10-9 g of purified penicillinase was measured as a function of the concentration of penicillin. assume that the concentration of penicillin does not change appreciably during the assay. penicillin(μm) amount hydrolyzed(nmol) 1 0.11 3 0.25 5 0.34 10 0.45 30 0.58 50 0.61 (a) plot v0 versus [s] and 1/v0 versus 1/[s] for these data. does penicillinase appear to obey michaelis-menten kinetics? if so, what is the value of km? (b) what is the value of vmax? (c) what is the turnover number of penicillinase under these experimental conditions? assume one active site per enzyme molecule.
Answers: 2
Which component is present in some viruses but absent in others?
a.)nucleic acid
b.)cap...
a.)nucleic acid
b.)cap...
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