Action of antibodies against virus and against bacteria, Biology

Assignment Help:

Q. How different are the actions of antibodies against virus and against bacteria? Why is the cellular immune response activated in case of chronic viral infection?

The antibodies of the humoral immune system act against extracellular agents, like bacteria or toxins but they are not active in the intracellular space and they cannot fight virus efficiently.

In case of viral infection (and also of precancerous or cancerous cells) the immune attack is made by the cellular immune system, mediated by NK (natural killers) and T, lymphocytes that destroy specific virus and cells.


Related Discussions:- Action of antibodies against virus and against bacteria

Type one diabetes mellitus, Q. Type one Diabetes Mellitus? Type 1 DM oc...

Q. Type one Diabetes Mellitus? Type 1 DM occurs in children and adolescents (6-14 yrs). In this disease, the body makes little or no insulin. Daily injections of insulin are ne

What are some examples of interspecific competition, Q. What are some examp...

Q. What are some examples of interspecific competition? Instance of interspecific competition are the dispute among worms, vultures, flies and microorganisms for carrion and th

Humans have selectively bred many radically, Humans have selectively bred m...

Humans have selectively bred many radically different domestic animals(e.g., St. Bernard and Chihuahua dog breeds). Does this activity result in evolution? why or why not?

Can you describe about hematosis, Q. What is hematosis? In humans where doe...

Q. What is hematosis? In humans where does hematosis occur? Hematosis is the oxygenation of the blood, venous blood (oxygen-poor) after hematosis is transformed into arterial b

What is the use of uncoated polyvinyl chloride, Q. What is the use of Uncoa...

Q. What is the use of Uncoated polyvinyl chloride? Uncoated polyvinyl chloride (PVC) and polyvinylidene chloride (PVDC): PVC and PVDC are closely related plastics that are a

First stage of invagination, First Stage of Invagination The large en...

First Stage of Invagination The large endodermal cells that are remaining in the vegetal plate move laterally towards the centre of the plate and fill the gap in the vegetal

Domestication and cultivation of ornamental plants, As with food crops, the...

As with food crops, the "discovery, domestication and cultivation" of ornamental plants have a long history. There is  indication that lilies were cultivated in China for both medi

Estimation of burn area, Estimation of Burn Area: The  estimation of  ...

Estimation of Burn Area: The  estimation of  the  extent  of  burn area expressed as  the  percentage  of  the surface  area  of  the skin  burnt to  the  total body  surface

Define function of thiamin as regulator of enzyme activity, Define Function...

Define Function of thiamin as Regulator of enzyme activity? Thiamin regulates the enzymes involved in carbohydrate metabolism. These are: a) Pyruvate dehydrogenase, which pr

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd