How many milliliters of a 2.0 M solution of boric acid must be added to 600 mL of a solution of 10 mM sodium borate in order for the pH to be 9.45? (pKa of boric acid = 9.24)

TLS Online TPP Program

#Question id: 1759

#SCPH01 Biochemistry

What is the major long-term source of a foreign antigen in the body?

TLS Online TPP Program

#Question id: 556

#SCPH06 I Botany

Which of the following statement is correct to calculate the turnover number of an enzyme,

A) the enzyme concentration.

B) the initial velocity of the catalyzed reaction at [S] >> Km.

C) the initial velocity of the catalyzed reaction at low [S].

D) the Km for the substrate.

TLS Online TPP Program

#Question id: 5266

#SCPH28 | Zoology

In conjugation the donor cell is recognized by the presence of

TLS Online TPP Program

#Question id: 2275

#SCPH05 I Biotechnology

A gram-negative bacterium is enclosed by

TLS Online TPP Program

#Question id: 1128

#SCPH01 Biochemistry

During the epinephrine stimulated conversion of glycogen to glucose 1-phosphate, which of the following steps involves protein phosphorylation?

a. inactivation of glycogen synthase               b. activation of protein kinase A

c. activation of adenylyl cyclise                      d. activation of glycogen phosphorylase