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HUMAN BIOLOGY HIGHER. UNIT 2: Chapter 21, Delivery of Oxygen to cells and Chapter 22, Delivery of Nutrients to Cells past paper questions. SECTION A All questions in this section should be attempted. Answers should be underlined with a ruler. 2011. 2011. 2010. [Turn over.

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HUMAN BIOLOGY HIGHER

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Human biology higher

HUMAN BIOLOGY

HIGHER

UNIT 2: Chapter 21, Delivery of Oxygen to cells and Chapter 22, Delivery of Nutrients to Cells past paper questions.

SECTION A

All questions in this section should be attempted.

Answers should be underlined with a ruler.

2011

2011.

2010.

[Turn over


Human biology higher

HUMAN BIOLOGY

HIGHER

SECTION A

All questions in this section should be attempted.

Answers should be underlined with a ruler.

2009.

2007

2008

[Turn over


Human biology higher

SECTION B

All questions in this section should be attempted.

All answers must be written clearly and legibly in ink.

2012

[Turn over


Human biology higher

SECTION B

All questions in this section should be attempted.

All answers must be written clearly and legibly in ink.

2010

[Turn over


Human biology higher

HUMAN BIOLOGY

HIGHER

SECTION B

All questions in this section should be attempted.

All answers must be written clearly and legibly in ink.

2010 Qu6 Con’t

[Turn over


Human biology higher

SECTION B

All questions in this section should be attempted.

All answers must be written clearly and legibly in ink.

2009

[Turn over


Human biology higher

SECTION B

All questions in this section should be attempted.

All answers must be written clearly and legibly in ink.

2009 Qu6 Con’t

[Turn over


Human biology higher

SECTION B

All questions in this section should be attempted.

All answers must be written clearly and legibly in ink.

2007

[Turn over


Human biology higher

SECTION B

All questions in this section should be attempted.

All answers must be written clearly and legibly in ink.

2007 Con’t

[Turn over


Human biology higher

SECTION C

BOTH questions should be attempted.

The questions should be attempted on the blank pages which follow.

Supplementary sheets, if required, may be obtained.

Labelled diagrams may be used where appropriate.

Marks

2007.

Give an account of how the structure of a red blood cell relates to its function. (10)

AND

  • 2005.

  • Describe the functions of the liver under the following headings

  • Production of urea. (2)

  • Metabolism of carbohydrates. (5)

  • Breakdown of red blood cells. (3)

[END OF QUESTION PAPER]

[Turn over


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