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Question 17N.2.HL.TZ0.02

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Date November 2017 Marks available [Maximum mark: 4] Reference code 17N.2.HL.TZ0.02
Level HL Paper 2 Time zone TZ0
Command term Describe, State Question number 02 Adapted from N/A
02.
[Maximum mark: 4]
17N.2.HL.TZ0.02
(c)

State the role of plasma cells in the immune system.

[1]

Markscheme

produce/secrete antibodies

(d.i)

Describe the production of hybridoma cells.

[2]

Markscheme

a. antigen injected into mouse/mammal/host

    Accept animal

b. B cells/B lymphocytes/plasma cells «obtained/extracted from host»

c. fusion «of plasma cell» with myeloma cell/tumour cell

d. division «of hybridoma cells» to produce a clone

[Max 2 Marks]

 

(d.ii)

State one possible use of hybridoma cells.

[1]

Markscheme

produce monoclonal antibodies
OR
diagnosis of diseases/malaria/cancer/HIV
OR
treatment of rabies
OR
blood and tissue typing
OR
pregnancy testing
OR
targeting of cancer cells «with a chemotherapy drug»
OR
treatment of infection if too late for vaccination/successful immune response

Only accept the first use of hybridoma cells given in the answer

Not treatment of malaria

 

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