The diagram shows a cross section through human skin - Edexcel - GCSE Biology - Question 4 - 2014 - Paper 1
Question 4
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
96%
114 rated
Only available for registered users.
Sign up now to view full answer, or log in if you already have an account!
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.
99%
104 rated
Only available for registered users.
Sign up now to view full answer, or log in if you already have an account!
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.