Biology 4BI1/2B May Jun 2019

Edexcel IGCSE Biology (4BI1) Jun 2019

معلم موافق رایگان بودن است.

1. Cell Biology and Genetics: Structure and function of organelles, DNA and protein synthesis, genetic inheritance, mutations, and factors affecting genetic variation.

2. Human Biology and Physiology: Functions of the circulatory, respiratory, and excretory systems, structure and function of the kidney and nephron, hormonal control of the menstrual cycle.

3. Plant Biology and Photosynthesis: Leaf structure, function of palisade and spongy mesophyll, role of stomata in transpiration, and factors affecting plant growth.

4. Ecology and Environmental Science: Mutualistic relationships, coral bleaching, impact of climate change on ecosystems, food webs, and conservation strategies.

5. Microbiology and Enzymes: Role of fungi in decomposition, enzyme function in digestion and industry, and applications of biotechnology in plant propagation.

6. Evolution and Adaptation: Adaptations of desert animals like kangaroo rats, role of surface area in gas exchange, and effects of environmental changes on species survival.