Grade 9 Exam > Grade 9 Videos > Biology for Grade 9 > Excretory System
Excretory System Video Lecture | Biology for Grade 9
FAQs on Excretory System Video Lecture - Biology for Grade 9
| 1. What is the main function of the excretory system? |  |
Ans. The main function of the excretory system is to remove waste products, toxins, and excess substances from the body. It helps maintain the body's internal environment by regulating the balance of water, electrolytes, and pH levels.
| 2. How does the excretory system eliminate waste from the body? | |
Ans. The excretory system eliminates waste from the body through various organs. The kidneys filter waste products from the blood and produce urine, which is then transported to the bladder for storage and later excretion through the urethra. Additionally, the liver helps detoxify harmful substances and eliminate them through bile, while the lungs eliminate carbon dioxide and water vapor during respiration.
| 3. What are the major organs of the excretory system? | |
Ans. The major organs of the excretory system include the kidneys, bladder, ureters, urethra, liver, and lungs. The kidneys are responsible for filtering waste products from the blood, while the bladder stores urine until it is eliminated through the urethra. The liver helps detoxify harmful substances, and the lungs eliminate carbon dioxide and water vapor.
| 4. How does the excretory system regulate the balance of water and electrolytes in the body? | |
Ans. The excretory system regulates the balance of water and electrolytes in the body through the kidneys. The kidneys adjust the amount of water reabsorbed into the bloodstream and the amount of water excreted as urine, depending on the body's needs. They also regulate the levels of electrolytes, such as sodium, potassium, and calcium, by selectively reabsorbing or excreting them.
| 5. What are some common disorders or diseases of the excretory system? | |
Ans. Some common disorders or diseases of the excretory system include urinary tract infections, kidney stones, kidney failure, urinary incontinence, and liver diseases like hepatitis. These conditions can disrupt the normal functioning of the excretory system and lead to various symptoms, such as pain, frequent urination, blood in urine, fluid retention, and impaired detoxification.
About this Video
1.9K Views
4.69/5
Rating
Sep 25, 2025
Last updated
Video Description: Excretory System for Grade 9 2025 is part of Biology for Grade 9 preparation.
The notes and questions for Excretory System have been prepared according to the Grade 9 exam syllabus.
Information about Excretory System covers all important topics for Grade 9 2025 Exam.
Find important definitions, questions, notes, meanings, examples, exercises and tests below for Excretory System.
Introduction of Excretory System in English is available as part of our Biology for Grade 9 for Grade 9 & Excretory System in
Hindi for Biology for Grade 9 course. Download more important topics related with notes, lectures and mock test series for
Grade 9 Exam by signing up for free.
Description
Video Lecture & Questions for Excretory System Video Lecture | Biology for Grade 9 - Grade 9 full syllabus preparation | Free video for Grade 9 exam to prepare for Biology for Grade 9.
Information about Excretory System
Here you can find the meaning of Excretory System defined & explained in the simplest way possible.
Besides explaining types of Excretory System theory, EduRev gives you an ample number of questions to practice Excretory System tests,
examples and also practice Grade 9 tests.
Related Searches
video lectures
,Viva Questions
,Objective type Questions
,Previous Year Questions with Solutions
,Sample Paper
,shortcuts and tricks
,Extra Questions
,Summary
,Excretory System Video Lecture | Biology for Grade 9
,Semester Notes
,Free
,MCQs
,ppt
,Exam
,Excretory System Video Lecture | Biology for Grade 9
,Important questions
,practice quizzes
,mock tests for examination
,study material
,Excretory System Video Lecture | Biology for Grade 9
,past year papers
;
Study Excretory System on the App
Students of Grade 9 can study Excretory System alongwith tests & analysis from the EduRev app,
which will help them while preparing for their exam. Apart from the Excretory System,
students can also utilize the EduRev App for other study materials such as previous year question papers, syllabus, important questions, etc.
The EduRev App will make your learning easier as you can access it from anywhere you want.
The content of Excretory System is prepared as per the latest Grade 9 syllabus.
|
© EduRev
|
Education Revolution
|
|
Signup to see your scores
go up
within 7 days!
within 7 days!
Takes less than 10 seconds to signup