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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KCSE Past Papers 2020 Biology Paper 1 (231/1)

2020 Biology Paper 1 Answer all the questions in the spaces provided. 1. Name the taxonomic grouping that contains individuals with most similarities.(1 mark) 2. Name the characteristic of living organisms shown by each of the following: a. budding in Read More …

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