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Draw a diagram of a mammalian kidney - HSC - SSCE Biology - Question 19 - 2009 - Paper 1
Question 19
Draw a diagram of a mammalian kidney. On your drawing, label THREE regions involved in the excretion of waste products AND indicate the main process that occurs in ... show full transcript
Worked Solution & Example Answer:Draw a diagram of a mammalian kidney - HSC - SSCE Biology - Question 19 - 2009 - Paper 1
Step 1
Step 2
Label THREE regions involved in the excretion of waste products
Answer
- Renal Cortex: This region is responsible for the filtration of blood, where waste products are initially filtered from the blood plasma.
- Renal Medulla: Here, the key process is the concentration of urine through the reabsorption of water and electrolytes.
- Renal Pelvis: This structure collects urine before it is transported to the bladder. It plays a crucial role in the drainage of urine.
Step 3
Indicate the main process occurring in each of the three regions
Answer
In the Renal Cortex, the primary process is filtration. In the Renal Medulla, the main processes include osmotic regulation and concentration of urine. In the Renal Pelvis, it primarily functions to collect and transport urine.