Table of Contents
Excretory Products and their Elimination – Introduction
Excretion is the process of removing metabolic wastes and other undesirable substances from an organism. This occurs through the kidneys in mammals and through the gills in fish. The kidneys extract wastes from the blood and excrete them in the urine. The gills extract wastes from the water and excrete them in the form of ammonia.
Excretory Products In Different Organisms
The excretory products in different organisms can vary depending on the type of organism and the environment in which it lives. In general, however, excretory products are waste products that are expelled from the body in order to maintain homeostasis.
In humans, the primary excretory product is urine, which produced in the kidneys and expelled through the urethra. Urine composed of water, dissolved ions and molecules, and metabolic wastes. Other human excretory products include sweat, which produced by the sweat glands and expelled through the pores, and feces, which is produced in the intestines and expelled through the rectum.
In animals, the primary excretory product often urine, but it can also be sweat, feces, or vomit. aquatic animals, the primary excretory product is often urine, but some animals, such as sharks, excrete salt water through their gills.
In plants, the primary excretory product is often water, but it can also be sap, latex, or nectar.
Human Excretory System
The human excretory system is responsible for removing waste products from the body. The system consists of the kidneys, the ureters, the bladder, and the urethra.
The kidneys two bean-shaped organs located on either side of the spine. The kidneys filter the blood, removing waste products and excess fluid. The waste products and excess fluid then excreted through the ureters and the bladder. The urethra carries the urine from the bladder to the outside of the body.
Other Excretory Organs in the Human Body
There are other excretory organs in the human body that help to rid the body of toxins. The liver and the kidneys are the two most important excretory organs. The liver filters the blood and removes toxins. The kidneys filter the blood and remove wastes from the body. The lungs also play a role in excretion by removing carbon dioxide from the body.
Excretory System Functions
The excretory system removes wastes and toxins from the body. It consists of the kidneys, ureters, bladder, and urethra. The kidneys filter the blood and remove waste products. The ureters carry the urine from the kidneys to the bladder. The bladder stores the urine until it ready to expelled through the urethra.
Functions of Tubules
The tubules in the kidney are responsible for filtering the blood and removing waste products from the body. The waste products then excreted in the urine. The tubules also help to regulate the body’s fluid balance by controlling the amount of water that reabsorbed back into the body.
FAQs on Excretory Products and Their Elimination
Why should I learn Chapter 19 of NCERT Solutions for Class 11 Biology thoroughly?
Learning Chapter 19 is important because it helps you prepare well for your exams, especially the second board exam. It also lets you understand the kinds of questions you might face and is worth a significant part of your exam marks.
Do the NCERT Solutions for Class 11 Biology Chapter 19 provide accurate solutions?
Yes, the solutions in Chapter 19 of NCERT for Class 11 Biology are accurate. Experts create them to assist you in preparing for your exams, and they are explained in simple language to help you understand difficult questions.
Explain the role of lungs in excretion from Chapter 19 of NCERT Solutions for Class 11 Biology.
Lungs play a part in excretion, which means getting rid of waste from your body. They do this by helping you breathe out carbon dioxide, a waste product. They also release water vapor when you breathe out, and sometimes, they release smelly substances too.
