there are a few topics in bio i would like to clear from the syllabus
- explain the link between physical activity and rate and depth of breathing in terms of changes in the rate at which tissues respire and therefore of carbon dioxide concentration and pH in tissues and in the blood.
- outline the structure of a kidney (cortex, medulla, and the start of the ureter) and outline the structure and functioning of a kidney tubule including:
• role of renal capsule in filtration from blood of water, glucose, urea and salts
• role of tubule in reabsorption of glucose, most of the water and some salts back into the blood, leading to concentration of
urea in the urine as well as loss of excess water and salts
If u could plz post igcse notes on this.
thx in advance