Page 2 - HM 1

Q7. Antibodies are produced in our body by -
(a) RBC
(b) Platelets
(c) WBC
(d) Plasma

Q8. Polio drops given to children contain -
(a) Polio vaccine
(b) Hepatitis Vaccine
(c) Tuberculosis vaccine
(d) Smallpox vaccine

Q9. Vaccine contains -
(a) Dead or weakened microbes
(b) Disease free microbes
(c) Strong microbes
(d) Healthy microbes

Q10. The name of vaccine used for prevention of tuberculosis is -
(a) OPV
(b) BCG
(c) Hepatitis-B
(d) HPV

SUBJECTIVE

Questions Marks Level
Q1. Define the term ‘Antibodies’ in our body. 1 E

Q2. What are biological nitrogen fixers? Give two examples. 3 E

Q3. What are vaccines? How do the vaccines work? 3 Av

Q4. Discuss the role of microorganisms in cleaning theenvironment. 3 Av

Q5. How are microorganisms helpful to plants? 3 D

Q6. What is the difference between antibiotics and antibodies? 3 D