2025-kisii-sch-biology-f4-pp1-scheme
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DATE 07 Dec 2025
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About This Document
Document Type: This is a Study Notes, designed for Reviewing core curriculum material.
Context: Standard material from the 2025 academic period.
Key Content: Likely covers essential definitions, structured questions to test your proficiency.
Study Strategy: Summarize these notes into flashcards or mind maps to aid active recall and long-term retention.
Recommendation: comprehensive resource for students aiming to deepen their understanding of General Studies.
Detailed Content Overview
Introduction
This notes resource titled "2025-kisii-sch-biology-f4-pp1-scheme" contains valuable educational content for academic study and reference. This resource is structured to facilitate effective learning and retention of important information.
Key Topics Covered
Learning Objectives
- Develop comprehensive understanding of key topics
- Apply learned concepts to real-world scenarios
- Strengthen critical thinking and analytical skills
- Achieve academic excellence in notes
Detailed Summary
FORM FOUR BIOLOGY PAPER ONE (PP1) MARKING SCHEME 1. a) Pair of forceps (1mk) b) c) Pooter Sweep net. Arteries - Narrow lumen -Thick Muscular & elastic wall - have no valves (1mk) (1mk) veins - wider lumen -Thin muscular inelastic walls -Have valves First 2 = 2mks 3. a) Guard cells (1mk) b) Contain chloroplasts where photosynthesis occurs producing sugars that affect osmotic pressure for opening and closing of stomata. -Thin outer and thick inner walls for opening and closing of stomata. a) b) Absiscic Acid - Thin cell walls -Dense cytoplasm -No vacuoles -Actively dividing cells (1mk) Sensory neuron Cell body off the axon. (1mk) (mark first two) (2mks) (1mks) c) 6. i) Plasmodium malariac Plasmodium vivax Plasmodium ovale Plasmodium falciparon ii) 8. i) Candida albican A – cortex B – Pelvis ii) Glomerulus 1 (2mks) any one rej. Plasmodium alone Scientific rules to apply FORM 4 Turn Over -Bowman’s capsule -Proximal convoluted tubule. (2mks) Planting more trees -Reduce emission of CO2 - Reduce use of woods - Reduce use of fossil fuels (3mks) 10.
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Content Preview
FORM FOUR BIOLOGY PAPER ONE (PP1) MARKING SCHEME 1.a) Pair of forceps (1mk) b) c) Pooter Sweep net. 2. Arteries - Narrow lumen -Thick Muscular & elastic wall - have no valves (1mk) (1mk) veins - wider lumen -Thin muscular inelastic walls -Have valves First 2 = 2mks 3.a) Guard cells (1mk) b) Contain chloroplasts where photosynthesis occurs producing sugars that affect osmotic pressure for opening and closing of stomata. -Thin outer and thick inner walls for opening and closing of stomata. (2mks)...
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