Samacheer Kalvi 6th Science Term 2 Unit 6 Book Back Questions and Answers:
Samacheer Kalvi 6th Standard Science Book Back 1 Mark and 2 Mark Question & Answers uploaded online and available PDF for free download. Class 6th New Syllabus Science Term 2 book back question & answer solutions guide available below for English Medium. Class sixth Std Science English Medium Term 2 Unit 6 Human Organ Systems book back answers given below. Students looking for class 6th Term II Unit 6 Biology Questions and Answers can check below.
We also provide class 6th other units Book Back One and Two Mark Solutions Guide on our site. Students looking for a new syllabus 6th standard Science Term 2 Unit 6 Human Organ Systems Biology Book Back Questions with Answer PDF:
For all three-term of 6th standard Science Book Back Answers English Medium – Samacheer kalvi 6th Science Book Back Answers
Samacheer Kalvi 6th Science Book Back Chapter 6 Term 2 Solution Guide PDF:
TN State Board Class 6th Science Subject Term 2 Unit 6 one mark and two mark solutions guide PDF available below.
6th Science – Term 2
Unit 6 – Human Organ Systems
I. Choose the appropriate answer:
1. Circulatory system transports these throughout the body
(d) All of these
Answer: (d) All of these
2. the Main organ of respiration in the human body is
Answer: (d) Lungs
3. Breakdown of food into smaller molecules in our body is known as
(a) Muscle contraction
Answer: (c) Digestion
II. Fill in the blanks:
- A group of organs together make up an _______ system.
- The part of the skeleton that protects the brain is _______
- The process by which the body removes waste is _______
- The _______ is the largest sense organ in our body.
- The endocrine glands produce chemical substances called _______
III. True or False. If False, give the correct statement:
1. Blood is produced in the bone marrow.
False, Red Blood Corpuscles are produced in the bone marrow.
2. All the waste products of the body are excreted through the circulatory system.
False, All the waste products of the body are excreted through the excretory system.
3. The other name of the food pipe is an alimentary canal.
False. The other name of the food pipe is called oesophagus.
4. Thin tube-like structures which are the component of the circulatory system are called blood vessels.
False, The tube like structure which are the component of circulatory system are called blood capillaries.
5. The brain, the spinal cord and nerves form the nervous system.
IV. Match the following:
|1. Ear||Cardiac muscle|
|2. Skeletal System||Flat muscle|
|4. Heart||Air sacs|
|5. Lungs||Protection of internal organs|
|2. Skeletal System||Protection of internal organs|
|3. Diaphragm||Flat muscle|
|4. Heart||Cardiac muscle|
|5. Lungs||Air sacs|
V. Arrange in the Correct sequence:
1. Stomach → Large intestine → Oesophagus → Pharynx → Mouth → Small Intestine → Rectum → Anus.
Mouth → Pharynx → Oesophagus → Stomach → Small Intestine → Large intestine → Rectum → Anus.
2. Urethra → Ureter → Urinary Bladder → Kidney.
Kidney → Ureter → Urinary Bladder → Urethra.
1. Arteries : Carry blood from the heart:: _______ :carry blood to the heart.
2. Lungs: Respiratory system:: _______ : Circulatory system.
3. Enzymes: Digestive glands:: _______ : Endocrine glands.
VII. Give a very short answer:
1. Write about the skeletal system.
The skeletal system consists of bones, cartilages, and joints. Bones provide a framework for the body. Bones along with muscles help in movements such as walking, running, chewing and dancing, etc.
2. Write the functions of the epiglottis.
The function of Epiglottis is to prevent the entry of food into the windpipe.
3. What are the three types of blood vessels?
The three types of blood vessels are arteries, veins and capillaries.
4. Define the term “Trachea”.
The trachea is commonly called a windpipe. It is a tube supported by cartilaginous rings that connect the pharynx and larynx to the lungs, allowing the passage of air. The trachea divides into right and left bronchi and enter into the lungs.
5. Write any two functions of the digestive system?
The functions of the digestive system are:
- It is involved in the conversion of complex food substances into simple forms.
- It absorbs digested food.
6. Name the important parts of the eye.
The important parts of the eye are the cornea, iris, lens, and pupil.
7. Name the five important sense organs?
The five important sense organs are the eyes, ears, nose, tongue, and skin.
VIII. Give a short answer:
1. Write a short note on the rib cage.
The rib cage is made up of 12 pairs of curved, flat rib bones. It protects the delicate vital organs such as the heart and lungs.
2. List out the functions of the human skeleton.
- Bones along with muscles help in movements such as walking, running, dancing, etc.
- Skullbone protects the brain and the structures of the face.
- The vertebral column protects the spinal cord.
- The rib cage protects vital organs such as the heart and lungs.
3. Differentiate between the voluntary muscles and involuntary muscles.
- They are attached to the bones.
- They can be controlled by our will. Example: Muscles of the arm.
- They are found in the walls of the digestive tract, urinary bladder, arteries, and other internal organs.
- They cannot be controlled by our will.
Other Important links for Class 6th Book Back Answers:
Tamil Nadu Class 6th Standard Book Back Guide PDF, Click the link – 6th Book Back Questions & Answers PDF
For all three-term of 6th standard Science Book Back Answers English Medium – Samacheer kalvi 6th Science Book Back Answers English Medium