The inner (plasma) membrane of E. coli is about 75% lipid and 25% protein by weight.  How many molecules of membrane lipid are there for each molecule of protein?  (Assume that the average protein is Mr 50,000 and the average lipid is 750.)

#Question id: 702

#SCPH05 I Biotechnology

Proteins often have regions that show specific, coherent patterns of folding or function.  These regions are called:

#Question id: 17819

#SCPH01 Biochemistry

#Question id: 4814

#SCPH28 | Zoology

The frequency of recombinant gametes is half the frequency of crossing over between genes present on same chromosome is due to

#Question id: 10524

#SCPH06 I Botany

Members of the Poaceae family, which includes all of the cereal crops, use benzoxazinoids, these alkaloids shows;

a) Alkaloids are derived from the tryptophan as constitutively produced defensive secondary metabolites

b) These benzoxazinoids such as DIBOA and its derivative DIMBOA are usually stored in the peroxisome

c) Upon damage, the inactive glycosides are hydrolyzed, generating glucosinolate, which are toxic not only to insect herbivores but also against pathogens

d) DIBOA and DIMBOA perform insecticidal and pesticidal activities

e) It can be inactivated by hydroxylation and N-glycosylation reactions

Which of the following combination is correct about benzoxazinoids alkaloids?

#Question id: 16132

#SCPH01 Biochemistry