Urease (MW 483,000) catalyzes the hydrolysis of urea. If 7.0 μg pure urease catalyzes the hydrolysis of 0.21 g of urea (MW 60 g/mol) in 1 min at 37 C at Vmax, what is the turnover number (kcat) of urea (in units of sec-1)?

the diploid number of chromosomes is sometimes represented by the symbol 2n. for the fruit fly, the diploid number is 8, which can be written as 2n = 8, where n represents twice the number of chromosomes in a sperm or egg cell.