Month: August 2022

Biology Paper 3 (231/3) 1.(a) The photograph below shows the inner surface of the upper lefi side of the rib cage. (i) Name the bone covered by the fatty tissue labelled K. (l mark) (ii) Explain the role of the part labelled Read More …

Biology Paper 2 (231/2) SECTION A (40 marks) Answer all the questions in this section in the spaces provided 1 (a) The diagram below represents a plant in the division Bryophyta. (i) Name the parts labelled B and D. (2 Read More …

 Biology Paper 1 (231/1) 1 (a) What is meant by the term wilting? (1 mark) (b) Explain how an increase in temperature affects the rate of active transport. 2 The diagram below represents a cell as seen under an electron Read More …

 Biology Paper 3 (231/3) 1 (a) You are provided with solutions labelled Q and R, a substance labelled D and a delivery tube fitted with a rubber bung/cork. I Label solution Q as lime water. ll Label solution R as 10% sugar solution. III Add substance D to the 10% sugar Read More …

Biology Paper 2 (231/2) SECTION A (40 marks) Answer all the questions in this section in the spaces provided. 1 (a)State four characteristics of fruits dispersed by animals. (4 marks) (b)State two roles of each of the following hormones in menstruation: (i) luteinising hormone; (2 marks) Read More …

.1 Biology Paper 1 (231/1) Answer all the questions. 1 State the importance of each of the following in living organisms: (a) nutrition(1 mark) (b) excretion.(1 mark) 2 (a) What is meant by the term seed dormancy?(1 mark) (b) State three causes of seed Read More …