Q. Which of the following is not a technique for the extraction of enzymes by chemical methods?

View solution

Q. In ________ treatment, produced basic radicals mediate a nucleophilic attack on compounds of cell wall on membrane leading to destabilization and fragmentation of membrane followed by release of enzymes.

View solution

Q. ____________ is an enzyme, which is highly produced by egg white and lachrymal glands.

View solution

Q. Gram positive bacteria are highly susceptible to lysozyme treatment.

View solution

Q. In ___________ treatment, certain molecules interact through ionic or Vander wall forces which leads to solubilization of phospholipids and lipoprotein which in turn, increases membrane permeability directing to cell lysis.

View solution

Q. Which of the following is cationic detergent?

View solution

Q. __________________ is an example of anionic detergent.

View solution

Q. The techniques which adopts the hypertonic and hypotonic condition for cell lysis is referred to as ____________

View solution

Q. Extraction of enzymes by physical methods include the usage of alkalis, EDTA, lysozyme, etc.

View solution

Q. Alkali treatment is not advisable for which of the following?

View solution

Q. The enzyme which specifically catalyzes β (1 → 4) glycosidic linkages of NAM (N-acetyl muramic acid) and NAG (N-acetyl glucosamine) present in bacterial peptidoglycan is _______________

View solution

Q. ___________ is a divalent chelator which can be used to extract enzymes from different sources.

View solution

Q. Which one of the following is not an example for ionic-detergent?

View solution

Q. Pick odd one out.

View solution

Q. The phenomenon wherein the osmotic pressure created due to presence of solutes inside and outside the cells will be equal is referred to as ________

View solution

Q. Which chemical is used for extracting enzymes by osmotic shock treatment?

View solution

Q. Which of the following is not a physical method for extraction of enzymes?

View solution

Q. ____________ is a phenomenon of assuming frequencies more than 20 kHz which is above the human audibility.

View solution

Q. The procedure in which cell lysis occur because of shock waves which are formed due to collapses occurring in buffered solution containing cells is referred to as _______________

View solution

Q. Homogenization cannot be done by using which one of the following?

View solution