BYJU’s provides the solutions for ICSE Selina publications Class 10 Biology Chapter 7 in PDF format so that the students can download these solutions for free. The topics included in this chapter deals with excretion, the process of excretion, kidney and its function in which, the formation of urine occurs in two steps:
- Step 1: Ultrafiltration
The liquid part of the blood filters out from the glomerulus into renal tube due to high pressure. This glomerular filtrate consists of urea, glucose, salts, water which is further passed to Bowman’s capsule.
- Step 2: Reabsorption
When glomerular filtrate is passing through the tube water along with usable substances such as glucose and sodium salts are reabsorbed
Why blood is alkaline, and urine is acidic? To answer such questions and questions related to the renal vein, efferent and afferent arteriole, egestion, excretion, etc. check out the solutions given.