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Malaria HSC question

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Victorious:
Hi,
This question popped up in the 2016 HSC paper

Name an infectious disease and explain how ONE host response is a defence adaptation. (3 marks)
>My class did MALARIA

and i realised i have almost no detail on host response - does any have a really simple explanation and some examples to share with me!

Thank you

KT Nyunt:

--- Quote from: Victorious on October 12, 2018, 11:12:04 am ---Hi,
This question popped up in the 2016 HSC paper

Name an infectious disease and explain how ONE host response is a defence adaptation. (3 marks)
>My class did MALARIA

and i realised i have almost no detail on host response - does any have a really simple explanation and some examples to share with me!

Thank you

--- End quote ---

Really simply, for the host response you can say: "Producing antibodies and a fever"

Or if you want to go into greater depth you can elaborate on the "producing antibodies" bit by talking about the immune response (ie. humoral response [B cells - which you would've learned a lot about in other points in the syllabus)  :)

Razeen25:

--- Quote from: KT Nyunt on October 12, 2018, 05:15:35 pm ---Really simply, for the host response you can say: "Producing antibodies and a fever"

Or if you want to go into greater depth you can elaborate on the "producing antibodies" bit by talking about the immune response (ie. humoral response [B cells - which you would've learned a lot about in other points in the syllabus)  :)

--- End quote ---

For questions like these, can we use the immune response as a defence adaption? I thought we would have to use the ones listed in the dot-point about defence adaptations such as cell death to pathogen, inflammation response, phagocytosis and lymph system.

KT Nyunt:

--- Quote from: Razeen25 on October 12, 2018, 08:25:49 pm ---For questions like these, can we use the immune response as a defence adaption? I thought we would have to use the ones listed in the dot-point about defence adaptations such as cell death to pathogen, inflammation response, phagocytosis and lymph system.

--- End quote ---

Oooo that's a good point. Yes I believe you're right, since they used that exact terminology in the question. (and those things are technically still host responses as they are still defence mechanisms of the host against pathogens)

Since this is a three marker though, I would only use inflammation response and phagocytosis - as this is what you'd typically imagine occurring for a patient with malaria. [The Anopheles mosquito would bite the skin, breaching the skin barrier and inducing a inflammation response. Macrophages would engulf any entering foreign material and destroy it using lysosomes etc.]

Razeen25:

--- Quote from: KT Nyunt on October 12, 2018, 09:57:02 pm ---Oooo that's a good point. Yes I believe you're right, since they used that exact terminology in the question. (and those things are technically still host responses as they are still defence mechanisms of the host against pathogens)

Since this is a three marker though, I would only use inflammation response and phagocytosis - as this is what you'd typically imagine occurring for a patient with malaria. [The Anopheles mosquito would bite the skin, breaching the skin barrier and inducing a inflammation response. Macrophages would engulf any entering foreign material and destroy it using lysosomes etc.]

--- End quote ---

Ahh yes that would be a good way to answer it. But now I checked the sample on the NESA website for this question and they used B/T lymphocytes so idek anymore HAHAHA.

I guess they both are correct (even though the syllabus refers to defence adaptations are something else smh).

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