Cytokinesis is when the cytoplasm divides to form two daughter cells
Answer:
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.
Explanation:
Answer:
1. Roots: anchor the plant in soil and absorb water and minerals
2: Stem: Holds the plant upright and bear leaves, branches and fruits.
3. Leaves: Carry out photosynthesis to make food for other plant parts.
4. Flower: serves as organ of reproduction to maintain the continuity of the species.
Explanation:
1. Roots: The cells of roots are specialized to penetrate the soil deep to anchor the plant and absorb water and minerals for nutrition of plants.
2: Stem: The cells of stem impart mechanical strength to keep the plant upright and bear leaves, branches and fruits.
3. Leaves: Cells of leaves have chlorophyll pigment to carry out photosynthesis to make food for other plant parts.
4. Flower: Some of the cells of flowers produce male and female gametes that fuse leading to seed formation. Seed germination maintains the continuity of the species.
