Advertisements
Advertisements
Question
Differentiate between Innate and acquired immunity.
Solution
| Innate Immunity | Acquired Immunity | |
| 1. | It is a non-pathogen specific type of defense mechanism | It is a pathogen specific type of defense mechanism. |
| 2. | It is inherited from parents and protects the individual from birth. | It is acquired after the birth of an individual. |
| 3. | It operates by providing barriers against the entry of foreign infectious agents. | It operates by producing primary and secondary responses, which are mediated by B−lymphocytes and T-lymphocytes. |
| 4. | It does not have a specific memory. | It is characterized by an immunological memory. |
APPEARS IN
RELATED QUESTIONS
Name and explain the type of barriers which involve macrophages.
What are interferons? Mention their role.
What are the cells involved innate immune system?
A vast variety of different pathogens or foreign molecules are recognized during acquired immune response. This property is known as ______.
Sensitized helper T-cells produce ____________.
______ results in the formation of AMIS.
Which of the following are characters of acquired immunity?
The type of immunity developed in response to vaccination is ______.
Which of the following is NOT a unique feature of acquired immunity?
Transplantation of tissues/organs fails after due to non-acceptance by the patient's body which type of immune response is responsible for such rejections?
If you suspect a major deficiency of antibodies in person, to which of the following would you look for confirmations evidence?
Apis mellifera are killer bees possessing toxic bee venom. Identify the treatment and the type of immunity developed from the given table to treat a person against the venom of this bee.
| When a microorganism invades a host, a definite sequence of events usually occurs leading to infection and disease, causing suffering to the host. This process is called pathogenesis. Once a microorganism overcomes the defence system of the host, development of the disease follows a certain sequence of events as shown in the graph. Study the graph given below for the sequence of events leading to the appearance of a disease and answer the questions that follow: |
(a) In which period, according to the graph there are maximum chances of a person transmitting a disease/infection and why? (1)
(b) Study the graph and write what is an incubation period. Name a sexually transmitted disease that can be easily transmitted during this period. Name the specific type of lymphocytes that are attacked by the pathogen of this disease. (2)
OR
(b) Draw a schematic labelled diagram of an antibody. (2)
(c) In which period, the number of immune cells forming antibodies will be the highest in a person suffering from pneumonia? Name the immune cells that produce antibodies. (1)
Interferons are proteins. In humans they are secreted by ______.
A patient was given an anti-retroviral drug by the doctor.
Which method was used to diagnose HIV disease?
| Robert was suffering from chronic renal failure. At the doctors’ recommendation of transplantation of kidney received from a healthy donor, Robert underwent kidney transplant. However, after two weeks, the transplanted kidney was rejected by the immune system of Robert. |
- Identify and define the type of immune response that is responsible for the rejection of the grafted organ.
- Suggest a clinical method by which the rejection of the transplanted organ can be prevented.
