Opsonization

Q. The outer proteinaceous covering of a virus is called

1. prion
2. capsid
3. virion
4. viroid

Q.

The marking of pathogens by coating them with antibodies is called

1. Opsonization

2. Phagocytosis

3. Engulfment

4. Trapping

Q.

Match the following images with the respective given steps P, Q, R, S

1. I - S, II- P, III- Q, IV - R

2. I - Q, II- P, III- R, IV - S

3. I - P, II- R, III - Q, IV- S

4. I- R, II- P, III - Q, IV- S

Q. Match the following column I and column II and choose the correct option.

	Column-I		Column-II
a.	Adaptive immune response	(i)	Neutrophils
b.	Associated with allergic reactions	(ii)	Lymphocytes
c.	Secrete serotonin and heparin	(iii)	Eosinophils
d.	Most abundant leucocyte	(iv)	Basophils

1. a - ii, b- iii, c- iv, d- i
2. a - ii, b- iv, c- iii, d- i
3. a - ii, b- iii, c- i, d- iv
4. a - i, b- ii, c- iv, d- iii

Q. In genetic engineering, the antibiotics are used ___________.

1. As selectable markers
2. To select healthy vectors
3. As sequence from where replication starts
4. To keep the cultures free of infection
5. Both A and D

Q. Which antibodies activate B Lymphocyte

1. IgA
2. IgD
3. IgE
4. IgM

Q.

Choose the correct labels for the I, II and III from the options given below

1. I - Opsonisation , II - Fc receptors , III - Phagocytosis

2. I - Opsonisation , II - TCR , III - Endocytosis

3. I - Phagocytosis , II - Fc receptor , III - Opsonization

4. I - Antibodies, II - TCR , III - Opsonization

Q. What happens when antibodies bind to specific antigens?

1. Kill the pathogen that the antigen belongs to
2. Activate cytotoxic T cells
3. Acivate complement system
4. Both B and C

Q. How are Kohler and Milstein related to biotechnology

Q. What are Complement Proteins ?

Q.

The marking of pathogens by coating them with antibodies is called

1. Opsonisation

2. Phagocytosis

3. Engulfment

4. Trapping

Q. Opsonisation is carried out by

1. IgG
2. IgM
3. IgA
4. IgD and IgE

Q. What are antibodies?

Q.

Choose the correct labels for I, II and III from the options given below:

1. I - Opsonisation, II - Fc receptors, III - Phagocytosis

2. I - Antibodies, II - TCR, III - Opsonisation

3. I - Opsonisation, II - TCR, III - Endocytosis

4. I - Phagocytosis, II - Fc receptor, III - Opsonisation

Q. An antiviral substance known to prevent the synthesis of new virus in the cell is known as

1. antibody
2. transferons
3. interferons
4. inferons

Q. What is phagocytosis?

Q. Kohler and Milstein developed a method in biotechnology for the production of

1. Myelomas
2. Steroid conversion
3. Monoclonal antibodies
4. Immobilized enzymes

Q. Phagocytosis was first of all seen by

1. Huxley
2. Haeckal
3. Metchnikoff
4. Strasburger

Q.

Choose the correct labels for I, II and III from the options given below:

1. I - Opsonisation , II - Fc receptors , III - Phagocytosis

2. I - Antibodies, II - TCR , III - Opsonization

3. I - Opsonisation , II - TCR , III - Endocytosis

4. I - Phagocytosis , II - Fc receptor , III - Opsonization

Q.

Match the following images with the respective given steps P, Q, R, S:
P. Macrophage receptors recognise the invading virus.
Q. The virus is drawn into the macrophage.
R. The virus get packaged into a sac pinched off from the cell membrane of the macrophage.
S. The sac fuses with lysozyme which safely dismantles the bacterium without digesting the macrophage itself.

1. I - S, II - P, III - Q, IV - R

2. I - Q, II - P, III - R, IV - S

3. I - P, II - R, III - Q, IV - S

4. I - R, II - P, III - Q, IV - S

Q.

Match the following images with the respective given steps P, Q, R, S:
P. Macrophage receptors recognise the invading virus.
Q. The virus is drawn into the macrophage.
R. The virus get packaged into a sac pinched off from the cell membrane of the macrophage.
S. The sac fuses with lysozyme which safely dismantles the bacterium without digesting the macrophage itself.

1. I - S, II- P, III- Q, IV - R

2. I - Q, II- P, III- R, IV - S

3. I - P, II- R, III - Q, IV- S

4. I- R, II- P, III - Q, IV- S

Q.

The marking of pathogens by coating them with antibodies is called

1. Trapping

2. Phagocytosis

3. Engulfment

4. Opsonization