Reflection 12)
Danny's driveway gets flooded after every heavy rain. To the right of his driveway, his yard slants upward creating a steep
forcing water to run down into his driveway. Which of these solutions would be the best way to solve his problem using
amount of time and money?
A)
He can have a new driveway paved on the opposite side of his house, near
the top of the slope.
B)
He can build a 2-foot brick wall down the length of his driveway to keep
the water in his yard.
He can plant a few large inexpensive shrubs at the top of the slope to
absorb most of the rain water.
D
He can have an in-ground pool put in his yard, so the water will run into
the pool before reaching the driveway:
Ok

Which line in the graph above best illustrates an effect of the carbon dioxide level in the blood on breathing rate before, during and after a period of exercise? 1.b,2.c,3.a,4.d

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.

True or false: the ribosome reads the sequence of codons in mrna.