Which of the following drugs is not obtained from plants :-

1. Cocaine

2. Ganja

3. Charas

4. Barbiturates 

Which of the following is a secondary lymphoid organ?

1. Thymus

2. Kidney

3. Bone marrow

4. Spleen

Which of the following statements is false ? 

1. When people are healthy they are more efficient at work.
2. Regular exercise is very important to maintain good health.
3. Health means only absence of disease
4. Health increases longevity of people and reduces infant and maternal              mortality.

Which of the following statements is not true regarding active acquired immunity :-

1. It is species non specific

2. It is antigen specific

3. It shows slow but long lasting effect

4. It is used in prophylaxis

AIDS is caused by HIV, among the following, which one is not a mode of transmission of HIV?

1. Transfusion of contaminated blood

2. Sharing the infected needles

3. Shaking hands with infected prersons

4. Sexual contact with infected persons

(i) Thymus
(ii) Spleen
(iii) Appendix
(iv) MALT
(v) Bone marrow

How many of the above are secondary lymphoid organs except?

1. ii, iii, iv only

2. i, v only

3. i, ii, iii, iv, v

4. i, ii, iii, iv only

Antibodies present in colostrum

1. IgG

2. IgA

3. IgD

4. IgE

In the human body, cell-mediated immunity is carried
out by

(1) T-lymphocytes

(2) B-lymphocytes

(3) Erythrocytes

(4) Thrombocytes

Each of the following statements concerning pneumonia are correct, except

1. It is caused by Streptococcus pneumoniae and Hemophilus influenzae

2. Pneumonia bacteria grow better at 33°C than at 37°C, hence they tend to cause the disease in upper respiratory tract rather than the lower respiratory tract

3. Bacteria infects alveoli of lungs

4. In pneumonia finger nails turn bluish in colour

Select the option that completes the given analogy

Pneumonia : Streptococcus pneumoniae :: Typhoid : ________

1. Plasmodium falciparum

2. Haemophilus influenzae

3. Salmonella typhi

4. Wuchereria bancrofti