KCSE Past Papers 2019 Biology Paper 3 (231/3)

Biology Paper 3 BIOLOGY Questions and answers 1. You are provided with specimens F and G. obtained from different plant species. Observe them together with photographs E and H and answer the questions that follow. Note: Do not destroy specimens F Read More …

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KCSE Past Papers 2019 Biology Paper 2 (231/2)

2019 Biology Paper 2 Answer all the questions in the spaces provided. 1. In an experiment to investigate the effect of Sodium chloride on the growth rate in a spinach seedling. seeds were treated with different concentrations of sodium chloride. Read More …

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KCSE Past Papers 2019 Biology Paper 1 (231/1)

2019 Biology Paper 1 Answer all the questions in the spaces provided. 1. Name the characteristic of living organisms illustrated by each of the activities described below: (a) Dressing heavily (1 mark) (b) Bursting of the sporangium in the Rhizopus Read More …

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KCSE Past Papers 2020 Biology Paper 3 (231/3)

2020 Biology Paper 3 Answer all the questions in the spaces provided. 1. You are provided with a piece of specimen N and the following reagents: – Dilute hydrochloric acid – Dilute sodium hydroxide – Dilute hydrogen peroxide – Water Read More …

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KCSE Past Papers 2020 Biology Paper 2 (231/2)

Answer all the questions in the spaces provided. 1. Below are photographs E and F, of two organisms, taken from their natural habitats. (a)(i) State the main nitrogenous waste product of the organism in photograph E.(1 mark) (ii) Give a Read More …

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