Bissoy.com
Doctors Medicines MCQs Q&A

Which among the following acts as receptors for bacteriophage attachment in Gram-negative bacteria?

Which among the following acts as receptors for bacteriophage attachment in Gram-negative bacteria? Correct Answer O antigens

The polysaccharide O antigens which extend like whiskers from the membrane surface into the surrounding medium. Many of the serological properties of Gram-negative bacteria are attributable to O antigens like they can serve as receptors for bacteriophage attachment.

Related Questions

A bacteria gives birth to two new bacteria in each second and the life span of each bacteria is 5 seconds. The process of the reproduction is continuous until the death of the bacteria. initially there is one newly born bacteria at time t = 0, the find the total number of live bacteria just after 10 seconds :
Essentially in an experiment involving bacteria, we measure Optical density of the media where the bacteria grow at different time point from the same flask. If we have 2 or more types of bacteria and want to investigate whether the growth curve of those bacteria are significantly different, what do you think the best analysis can be applied for this purpose?
A continuous process is set up for treatment of wastewater. Each day, 103 kg cellulose and 105 kg bacteria enter in the feed stream, while 102 kg cellulose and 1.5 x 102 kg bacteria leave in the effluent. The rate of cellulose digestion by the bacteria is 8 x 102 kg d-1. The rate of bacterial growth is 4x 102 kg d-l; the rate of cell death by lysis is 6 x 102 kg d-1. Write balances for cellulose and bacteria in the system.
Consider the following statements regarding the functions of the Integumentary System in animals.  I. It helps in the regulation of body temperature in animals.  II. It is a site for the synthesis of cholecalciferol.  III. It is the attachment site for the sensory receptors that are used for detection of various sensations such as pain, sensation, pressure etc.  Which among the above is/are the function(s) of the integumentary system in animals?
Which of the following glycoproteins on the protein coat of virus helps it in the attachment of the virus to CD4 receptors?
Consider the following statements: I) Baltimore system is used to classify viruses II) Viruses that infect bacteria are called lichens III) The shape of coccus bacteria is generally spherical IV) Spirogyra is a type of bacteria Which of the following is correct?
Under Section 83 of the criminal Procedure Code any person other than the proclaimed offender can file objections relating to attachment of property. What will be the time limit from the date of attachment?
A' institutes a suit against 'B' for recovery of 2 lakhs and files an application for attachment of B's property. Before the attachment, B transfers his property to 'C'. The transfer is
When visual stimulus reaches receptors in retina of eye, first process involving absorption of physical energy by receptors is?
When visual stimulus reaches receptors in retina of eye, second process involving absorption of physical energy by receptors is?