1. What is fermentation? 2. How does a vaccine work?

3. What is metamorphosis?

4. How does Hydra reproduce?

5. What do you understand by puberty?

6. How does fertilization occur in frogs?

7. What are the differences between plant and animal cells?

8. Why is the pituitary gland referred to as the master gland?

9. Differentiate between unicellular and multicellular organisms.

Which chemical equation is unbalanced? which chemical equation is unbalanced

Nh3 +02-no + h20 is unbalanced what is the balanced equation

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.