Biology 5090/21 — May/June 2022
Cambridge O-Level · Theory · worked solutions for every part, with the mark scheme
9
questions
80
marks
105
minutes
Topics Transport in Humans · Coordination and Control · Respiration · Human Nutrition · Organisms and Their Environment · Movement Into and Out of Cells · +10 more
Q110MCoordination and ControlRespirationFree sample
The diagram shows human skin.
(a)
(i)2M
Identify the parts labelled B and C.
B = ______
C = ______
(ii)3M
Describe how part B is involved in maintaining a constant body temperature when the external temperature drops.
(b)3M
Part A is unevenly distributed in human skin.
Name part A and suggest reasons for this uneven distribution.
(c)2M
The thickness of layer D can change over several months.
Suggest and explain one reason for a decrease in the thickness.
The rest of this paper
8 more questions- Q2Human Gas Exchange · Transport in Humans · Respiration14M
- Q3Transport in Flowering Plants · Cell Division and Reproduction · Inheritance · Sexual Reproduction in Plants14M
- Q4Human Nutrition · Transport in Humans · Enzymes5M
- Q5Plant Nutrition · Organisms and Their Environment7M
- Q6Classification · Cell Structure and Organisation · Disease and Immunity10M
- Q7Human Nutrition · Transport in Humans · Movement Into and Out of Cells10M
- Q8Coordination and Control10M
- Q9Organisms and Their Environment · Movement Into and Out of Cells10M
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