10th Class Biology Chapter 9 Test09. Immunity

Q1. Multiple choice questions (Attempt all · 10 × 1 = 10)

1. Macrophages and dendritic cells are:
   1. lymphocytes
   2. granulocytes
   3. monocytes
   4. red blood cells
2. Helper T cells assist:
   1. B cells
   2. NK cells
   3. Neutrophils
   4. Basophils
3. The protective function of adaptive immunity is to:
   1. Provide long-term protection against specific pathogens
   2. Produce non-specific defense only
   3. Kill only bacteria
   4. Repair tissues only
4. Lymph nodes contain collections of:
   1. B cells and T cells
   2. Neutrophils and macrophages
   3. Basophils and eosinophils
   4. NK cells and dendritic cells
5. Which immune system role repairs damaged tissues and restores normal function?
   1. Antibody production
   2. Tissue repair
   3. Memory
   4. Surveillance
6. In the immune response, macrophages:
   1. Produce antibodies
   2. Engulf pathogens
   3. Activate memory cells
   4. Destroy red blood cells
7. Vaccines boost immunity by introducing:
   1. Large harmful pathogens
   2. Small harmless pieces of a pathogen
   3. Antibody injections only
   4. Hormones
8. Adaptation in adaptive immunity means:
   1. Producing more mucus
   2. Continuously improving immune response
   3. Increasing inflammation
   4. Making more skin layers
9. The main function of adaptive immunity is to provide:
   1. Non-specific defense
   2. Specific and targeted response to pathogens
   3. Physical barrier
   4. Hormonal regulation
10. Booster doses are given to:
    1. Reduce antibody concentration
    2. Strengthen immunity and prolong protection
    3. Weaken the immune system
    4. Increase pathogen growth