0.1 mg of a quaternary structured enzyme (Mr 486 000) with four active sites converts 48 mirormol substrate/10 sec. Calculate molecular activity (min^-1), catalytic centre activity (min^-1). - 

#Question id: 11677

#I Life Science/ Life Sciences Group – I-V

Which of the following contribute to maintaining the high osmolarity of the renal medulla?

I) active transport of salt from the upper region of the ascending limb

II) the spatial arrangement of juxtamedullary nephrons

III) diffusion of urea from the collecting duct

IV) diffusion of salt from the descending limb of the loop of Henle

#Question id: 106

#SCPH28 | Zoology

fatty acid designated as 20:0 is ________, while one that is designated 20:3 D5,8,11 is

#Question id: 11593

#SCPH06 I Botany

Following are given stages of gibberellin biosynthetic pathway;

a) Geranylgeranyl diphosphate (GGPP) is converted to ent-kaurene  via copalyl diphosphate (CPP) in endoplasmic reticulum

b) In the endoplasmic reticulum, conversion of ent-kaurene into GA12 or GA53 depending on whether the GA is hydroxylated at carbon 13

c) the conversion of GA12 or GA53 into other GAs in cytosol proceeds with a series of oxidations at carbon 20

d) GA20 is then oxidized to the active gibberellin, GA1, by a 3β-hydroxylation reaction

Which of the following is the correct statements of GA biosynthesis?

#Question id: 10596

#SCPH28 | Zoology

In a experimental population the birth rate is 18 per 1000 and death rate is 14 per 1000. Size of population is 10,000 at time t then what will be size of population at time t+1?

#Question id: 1054

#SCPH06 I Botany

During attachment of phage to E. coli, the phage