Human Biology 4HB1/01R November 2020 | Edexcel IGCSE Past Papers With Mark Scheme
Edexcel
International GCSE
Human Biology (4HB1)
Nov
2020
2. Respiratory health: ciliated cell structure, smoking damage via tar, impaired mucus movement, lung infection susceptibility.
3. Cell biology and microscopy: microscope use sequence, magnification calculation, visibility affected by lack of staining, lab safety procedures.
4. Nutritional disorders: kwashiorkor from protein deficiency, swelling in ankles, dietary correction, prevalence trend analysis, disease percentage computation.
5. Reproduction and diet: increased iron need in pregnancy for hemoglobin and fetal development, food sources, calorimetry energy content method.
6. Genetics and disease: CFTR gene mutation effect, DNA→RNA→protein sequence, autosomal recessive inheritance, faulty protein trafficking, DNA polymerase role.
معلم موافق رایگان بودن است.
1. Blood composition and immune response: red blood cell oxygen transport, white blood cell defense roles, ratio shift during infection, phagocytosis.2. Respiratory health: ciliated cell structure, smoking damage via tar, impaired mucus movement, lung infection susceptibility.
3. Cell biology and microscopy: microscope use sequence, magnification calculation, visibility affected by lack of staining, lab safety procedures.
4. Nutritional disorders: kwashiorkor from protein deficiency, swelling in ankles, dietary correction, prevalence trend analysis, disease percentage computation.
5. Reproduction and diet: increased iron need in pregnancy for hemoglobin and fetal development, food sources, calorimetry energy content method.
6. Genetics and disease: CFTR gene mutation effect, DNA→RNA→protein sequence, autosomal recessive inheritance, faulty protein trafficking, DNA polymerase role.
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