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The diagram shows a cross section through human skin - Edexcel - GCSE Biology - Question 4 - 2014 - Paper 1

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The diagram shows a cross section through human skin. (i) Complete the sentence by putting a cross (X) in the box next to your answer. Structure X is the A blood ... show full transcript

Worked Solution & Example Answer:The diagram shows a cross section through human skin - Edexcel - GCSE Biology - Question 4 - 2014 - Paper 1

Step 1

Complete the sentence: Structure X is the

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Answer

The correct option for structure X, indicated by a cross (X), is D sebaceous gland. Sebaceous glands are associated with hair follicles and are responsible for producing sebum, which helps to keep the skin moisturized.

Step 2

Describe the role of the sweat gland in thermoregulation.

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Answer

Sweat glands play a crucial role in thermoregulation by producing sweat, which is primarily composed of water and salts. When the body's temperature rises, sweat is secreted onto the skin surface. As the sweat evaporates, it absorbs heat from the body, helping to cool it down. This process is vital for maintaining a stable internal temperature, especially during physical activity or in hot environments.

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