Excretion in Animals and Plants

This topic sheds light on the process of excretion. Through a diagram of human excretory system, it highlights the functions of each part of the system. It also discusses the excretory products of kidneys, skin, lungs, and liver in humans.

This topic describes the human excretory system. The human excretory system consists of a pair of kidneys, pair of ureters, a urinary bladder and a urethra. It discusses the structures of the excretory system in detail.

This topic details the accessory excretory organs including kidney, liver, skin and lungs which help in the excretion of excretory wastes.

In this topic, we will study the common disorders of the urinary system. It briefs on the kidney stones, urinary tract infection, and diabetes. Further, we will learn that the presence of blood cells in urine indicates damage to the kidneys.

This topic talks about urine formation, along with the composition of urine. It describes the role of kidneys in the formation of urine. It also mentions that human urine consists of water, urea, uric acid, and some mineral salts.

The concept of dialysis has been explained in this topic. It discusses the use of simple techniques including filtration. It highlights the application of dialysis along with its illustration. It also includes an activity based on this notion.

A brief description of the process of osmoregulation is provided in this topic. It discusses how kidneys help in maintaining the salt and water concentration in the blood. It also explains why the urine passed is more concentrated in summers.

This topic discusses the process of excretion in plants. It tells us that the waste products produced by plants are diffused out through stomata and lenticels. It also lists the excretory products that are stored in different parts of the plant.