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(MCQ) General Science: Lymphatic System and Immunity

1. Consider the following statements.

(i) Bone marrow contains tissues that produce lymphocytes. B lymphocytes (B-cells) mature in the bone marrow.
(ii) T- Lymphatic (T-cells) mature in the thymus gland.
(iii) Monocytes & leukocytes are produced in the Bone marrow.

Which of the fall are true?

1. ii & iii only
2. None of the above
3. All of the above
4. iii only

2. Consider the following statements.

(i) The spleen is similar to lymph node.
(ii) Spleen serves as a reservoir for blood purifies lymph fluid.
(iii) If the spleen is damaged a person is more susceptible to infections.

Which of the above are false?

1. iii only
2. i & ii only
3. None
4. i & iii only

3. Consider the following statements.

(i) Damaged cells release chemical signals such as histamine that increase capillary blood flow into the affected area.
(ii) Monotypes produce chemical luterfaon that prepare cells for a virus attack.
(iii) Interferon cleans up dead microbes, cells & debris.

Which of the above are correct?

1. i & ii only
2. i only
3. ii & iii only
4. i & iii only

4. Consider the following statements.

(i) Immunity results from production of antibodies.
(ii) Antibodies kill invade antigens
(iii) Most antibodies are a mix of proteins and polysaccharides.

Which of the above are true?

1. i & ii only
2. ii & iii only
3. i, ii & iii
4. None

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