9700/41

Biology 9700/41May/June 2017

Cambridge A-Level · A Level Structured Questions · worked solutions for every part, with the mark scheme

10
questions
100
marks
120
minutes

Topics Inheritance · Homeostasis · Energy and Respiration · Control and Coordination · Photosynthesis · Genetic Technology · +2 more

Q1HomeostasisFree sample
(a)

The mammalian kidney is an organ involved in homeostasis.

Explain what is meant by the term homeostasis.

1M
(b)

Fig. 1.1 shows a section through a kidney.

(i)

With reference to Fig. 1.1, name structures A and B.

A ______

B ______

2M
(ii)

On Fig. 1.1, use label lines and letters to label where:

U – ultrafiltration occurs

L – the loop of Henle is found

C – blood urea concentration is low.

3M
(c)

Describe the roles of the hypothalamus and the posterior pituitary in osmoregulation.

5M

The rest of this paper

9 more questions
  • Q2Photosynthesis9M
  • Q3Genetic Technology · Inheritance14M
  • Q4Energy and Respiration7M
  • Q5Selection and Evolution · Inheritance14M
  • Q6Control and Coordination · Energy and Respiration10M
  • Q7Inheritance9M
  • Q8Classification, Biodiversity and Conservation11M
  • Q9Homeostasis15M
  • Q10Control and Coordination15M
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