Section 10. Diseases and immunity for Biology, IGCSE - revisedeck

10. Diseases and immunity

A section of Biology, 0610

Listing 10 of 182 questions

Cholera infection can cause the following events: cells lining the small intestine secrete chloride ions cholera bacteria produce a toxin chloride ions move into the small intestine water from the blood moves into the small intestine by osmosis water potential of fluid in the small intestine becomes lower. Which sequence of events will cause diarrhoea?

0610_m20_qp_22

MCQ

2020

Paper 2, Variant 2

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The cholera bacterium produces toxins that cause chloride ions to be secreted into the small intestine. How does this affect the water potential of blood in the intestinal capillaries and the intestinal contents?

0610_s19_qp_21

MCQ

2019

Paper 2, Variant 1

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The cholera bacterium produces toxins that cause chloride ions to be secreted into the small intestine. How does this affect the water potential of blood in the intestinal capillaries and the intestinal contents?

0610_s19_qp_22

MCQ

2019

Paper 2, Variant 2

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The cholera bacterium produces toxins that cause chloride ions to be secreted into the small intestine. How does this affect the water potential of blood in the intestinal capillaries and the intestinal contents?

0610_s19_qp_23

MCQ

2019

Paper 2, Variant 3

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Cholera bacteria in the gut cause secretion of chloride ions which leads to diarrhoea. Which diagram shows the correct movement of chloride ions (Cl –) and water (H2O)?

0610_s23_qp_22

MCQ

2023

Paper 2, Variant 2

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The cholera bacterium produces a toxin. The toxin causes the secretion of chloride ions into the lumen of the small intestine. Why does this cause diarrhoea?

0610_s24_qp_23

MCQ

2024

Paper 2, Variant 3

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The cholera bacterium produces toxins that cause chloride ions to be secreted into the small intestine. How does this affect the water potential of blood in the intestinal capillaries and the intestinal contents?

0610_w16_qp_21

MCQ

2016

Paper 2, Variant 1

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One of the symptoms of the disease cholera is diarrhoea. This is due to water loss by osmosis caused by the cholera toxin. Cholera toxins result in A secretion of chloride ions out of the small intestine lowering the water potential. B secretion of chloride ions out of the small intestine raising the water potential. C secretion of chloride ions into the small intestine lowering the water potential. D secretion of chloride ions into the small intestine raising the water potential.

0610_w19_qp_21

MCQ

2019

Paper 2, Variant 1

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The cholera bacterium produces a toxin that results in water entering the alimentary canal and causing diarrhoea. The diagram shows the human alimentary canal. Into which region are chloride ions secreted as a result of the toxin?

0610_w19_qp_22

MCQ

2019

Paper 2, Variant 2

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Cholera infection can cause the following events. Cells lining the small intestine secrete chloride ions. Cholera bacteria produce a toxin. Chloride ions move into the small intestine. Water from the blood moves into the small intestine by osmosis. Water potential of fluid in the small intestine becomes lower. Which sequence of events will cause diarrhoea?

0610_w23_qp_23

MCQ

2023

Paper 2, Variant 3

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Questions Discovered

182