Question

1.explain why people have different skin color
2.with examples highlight five function of plasma membrane protein
3.list one function of ant four organelles of human cell you know
4.with regard to transport processes in the human body explain how human immunodeficiency virus (HIV) gets into and out of the host cell
5.explain how action potential is generated and transmitted
6.how does skin necrosis come about

Answer 1

2. With your understanding of the feedback loop, explain the physiology of normal labour (normal child birth) (10 marks)
3. Describe how plasma membrane of the human cell maintains balance of:
a. Glucose (5 marks)
b. Potassium (5 marks)
6. Distinguish cells that line the small intestines and those that line stomach (10 marks)
7. Indicating examples, identify four types of human tissues (20 marks)
8. Explain how urinary bladder holds urine