What is happening at position 3?
1 - VCE - SSCE Biology - Question 20 - 2019 - Paper 1
Question 20
What is happening at position 3?
1. Enzymes that break down the microorganism are released into the vesicle.
2. Antibodies are added to the vesicle to kill the micr... show full transcript
Worked Solution & Example Answer:What is happening at position 3?
1 - VCE - SSCE Biology - Question 20 - 2019 - Paper 1
Step 1
Enzymes that break down the microorganism are released into the vesicle.
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
At position 3, enzymes are released into the vesicle, which begin to digest the microorganism engulfed during the phagocytosis process.
Step 2
Antibodies are added to the vesicle to kill the microorganism.
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
Additionally, antibodies may be present in the vesicle, facilitating the neutralization or destruction of the microorganism, helping to target and eliminate infections.
Step 3
The cell is sampling the vesicle for antigen presentation.
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
Another crucial aspect occurring here is that the cell samples the contents of the vesicle, processing antigens to present them on its surface for recognition by T-cells, which is vital for adaptive immunity.
Step 4
Intracellular microbes are attacking the microorganism.
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
If there are any intracellular microbes present, they may also contribute to the attack through various mechanisms, further aiding the immune response.