A specific immune response involves
A - VCE - SSCE Biology - Question 18 - 2007 - Paper 1
Question 18
A specific immune response involves
A. helper T lymphocytes releasing cytotoxins.
B. T lymphocytes recognising antigens presented by macrophages.
C. suppression of t... show full transcript
Worked Solution & Example Answer:A specific immune response involves
A - VCE - SSCE Biology - Question 18 - 2007 - Paper 1
Step 1
A. helper T lymphocytes releasing cytotoxins.
96%
114 rated
Only available for registered users.
Sign up now to view full answer, or log in if you already have an account!
Answer
This statement is incorrect as helper T lymphocytes do not release cytotoxins. Instead, they assist in activating B cells and other T cells.
Step 2
B. T lymphocytes recognising antigens presented by macrophages.
99%
104 rated
Only available for registered users.
Sign up now to view full answer, or log in if you already have an account!
Answer
This statement is correct. T lymphocytes, specifically cytotoxic T cells, recognize antigens presented by macrophages and are crucial for the adaptive immune response.
Step 3
C. suppression of the response by memory B cells after the infection.
96%
101 rated
Only available for registered users.
Sign up now to view full answer, or log in if you already have an account!
Answer
This statement is misleading. Memory B cells do not suppress the immune response; rather, they remain dormant to provide a faster response upon re-exposure to the same antigen.
Step 4
D. B lymphocytes, each with a number of different surface antibodies.
98%
120 rated
Only available for registered users.
Sign up now to view full answer, or log in if you already have an account!
Answer
This statement is incorrect. While B lymphocytes can produce various antibodies, each individual B cell typically expresses only one specific type of antibody on its surface.
