Month: August 2022

Biology Paper 1 (231/1) 1 a)Is when the rate of water loss is more than the rate of absorption and the plant droops; l mark b)The rate of active transport increases with increase intemperature up to the optimum temperature; 1 Read More …

4.4.3 Biology Paper 3 (231/3) 1. (a) (i) Bubbles / gas formed/effervescence/foam/frith; lime water turns white/white ppt/milky/cloudy; (2 marks) (ii) Gas produced is carbon (IV) Oxide/C02/carbon dioxide; which reacts with lime water to form a white precipitate/calcium carbonate/ insoluble sent; Read More …

Biology Paper 2 (231/2) SECTION A (40 marks) 1. (a) ‘ Fruit fleshy/juicy/succulent;   Fruit brightly coloured/large/inclusters; Fruit scented has sweet smell/sweet aroma; Seeds have tough/hard testa; Some seeds have sticky/mucoid secretions; Fruits have hooks;(max 4 marks) (b) (i) Luteinising Read More …

Biology 2014 4.4.1 Biology Paper 1 (231/ 1) 1. (a) Acquisition and utilization of nutrients; (1 mark) (b) Elimination of metabolic wastes to prevent accumulation to toxic level; (1 mark) 2. (a) A period of rest in which a seed Read More …

    Biology Paper 2 (231/2) No. 1 a) Name the part labeled S. (1 mark) ❖ Chorion b) (i) Name the types of blood vessels found in the structure labeled Q. (2 marks) ❖ Arteries; veins (ii) State the Read More …

BIOLOGY Questions and answers Biology Paper 1 (231/1) No.1.(a) State two ways in which the muscles of the mammalian heart are special. (2 marks) ❖ Muscles are myogenic – able to initiate their own concentration. ❖ Presence of intercalated discs Read More …

2017 Biology paper 3 i) E – strips curved outwards; (1 mark) F — strips curved inwards; (1 mark) ii) E — Liquid Elwater entered inner cells/mesocarp of banana peels by osmosis; the inner cells expanded faster/enlarged more/became longer/ became Read More …

Biology paper 2 Questions and Answers 1. The diagram below represents a nucleus. (a) Name the structures labelled E and F.(2 marks) (i) E– Nucleolus F – Nuclear pore/nucleopore (ii) State the function of F. (1 mark) – Facilitates movement of Read More …

BIOLOGY Questions and answers Biology Paper 1 (231/1) 1. Below is an illustration of a piece of apparatus strategically positioned to trap some organisms. (a) Name the apparatus. (1 mark) – Pooter/Aspirator; (b) State the function of the part labelled Read More …

Biology Paper 3 (231/3) Kenya Certificate of Secondary Education 2018 Biology Paper 3 Answer all the questions in the spaces provided. 1. The photographs below represent three mammalian bones, labelled E, F and G. E F G (a) With reasons, Read More …