f3-biology-f3-pp2-ms-end-t2-teacher_co_ke_2
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DATE 07 Dec 2025
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About This Document
Document Type: This is a Exam Paper, designed for Testing knowledge and exam technique.
Context: Standard material from the 2025 academic period.
Key Content: Likely covers essential definitions, structured questions to test your proficiency.
Study Strategy: Attempt these questions under timed conditions to simulate a real exam environment, then check against your notes.
Recommendation: comprehensive resource for students aiming to achieve top grades in their final assessments.
Detailed Content Overview
Introduction
This notes resource titled "f3-biology-f3-pp2-ms-end-t2-teacher_co_ke_2" provides comprehensive exam preparation materials designed to test and enhance your understanding. This resource is structured to facilitate effective learning and retention of important information.
Key Topics Covered
Learning Objectives
- Master key concepts required for examination success
- Practice answering exam-style questions effectively
- Develop time management skills for timed assessments
- Identify and address knowledge gaps in understanding
Detailed Summary
Download this and other FREE materials from https://teacher. ke/notes MARKING SCHEME END TERM 2 EXAMINATION JULY/AUGUST 2025 BIOLOGY PAPER 2 FORM 3 1. A biological washing powder contains an enzyme. The enzyme removes stain such as blood from clothes by digestion when the clothes are soaked in water with the powder. (a) What is an enzyme. (2mks) - An organic catalyst that is produced by a living cell and speeds up the rate of a chemical reaction without itself being changed or destroyed or consumed. - (b) Identify two possible enzymes that are found in the washing powder above. (2mks) Proteases Lipases (c) Would the stains be removed faster with the powder in water at 30oC or 150C. (1mk) At 30oC (d) Explain your answer in (c ) above (2mks) Enzyme activity is at its optimum and enzymes quickly digest the protein that forms some of the blood stains (e) Why would boiling the clothes socked with the washing powder do not remove the stains.
Study Tips & Recommendations
Time Management
Practice under timed conditions to improve speed and accuracy. Allocate specific time limits to each section.
Active Practice
Attempt all questions before checking answers. Review mistakes to understand where improvements are needed.
Mark Scheme Review
Study marking schemes carefully to understand how examiners award points and structure your answers accordingly.
Regular Review
Schedule periodic reviews to reinforce learning and combat forgetting. Use spaced repetition for optimal retention.
Content Preview
Download this and other FREE materials from https://teacher.co.ke/notes MARKING SCHEME END TERM 2 EXAMINATION JULY/AUGUST 2025 BIOLOGY PAPER 2 FORM 3 1. A biological washing powder contains an enzyme. The enzyme removes stain such as blood from clothes by digestion when the clothes are soaked in water with the powder. (a) What is an enzyme? (2mks) - An organic catalyst that is produced by a living cell and speeds up the rate of a chemical reaction without itself being changed or destroyed or con...
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