Class 6 Science Chapter 8 Body Movements (দেহৰ চলন) answer to each chapter is provided in the list so that you can easily browse throughout different chapter Assam Board As Per New Syllabus Class 6 Science Chapter 8 Body Movements (দেহৰ চলন) and select needs one.
SEBA Class 6 Science Chapter 8 Body Movements (দেহৰ চলন)
Also, you can read the SCERT book online in these sections Solutions by Expert Teachers as per SCERT (CBSE) Book guidelines. These solutions are part of SCERT All Subject Solutions. Here we have given Assam Class 6 Science Chapter 8 Body Movements (দেহৰ চলন) Solutions for All Subject, You can practice these here…
Body Movements [দেহৰ চলন]
Chapter: 8
Exercises
Q.1. Fill in the blanks:
(a) Joints of the bones help in the _______ of the body.
Ans: Movement
(b) A combination of bones and cartilages forms the _______ of the body.
Ans: Skeleton
(c) The bones at the elbow are joined by a _______.
Ans: Hinge
(d) The contraction of the _______ pulls the bones during movement.
Ans: Muscles.
Q.2. Indicate true (T) and false (F) among the following sentences
(a) The movement and locomotion of all animals is exactly the same.
Ans: False.
(b) The cartilages are harder than bones.
Ans: False.
(c) The finger bones do not have joints.
Ans: False.
(d) The fore arm has two bones.
Ans: True.
(e) Cockroaches have an outer skeleton.
Ans: True.
Q.3. Match the items in column I with one or more items of column II.
| Column I | Column II |
| Upper jaw | have fins an the body |
| Fish | has an outer skeleton |
| Ribs | can fly in the air |
| Snail | is an immovable joint |
| Cockroach | protect the heart shows very slow movement have a streamlined body |
Ans:
| Column I | Column II |
| Upper jaw | is an immovable joint |
| Fish | have fins on the body. have a streamlined body. |
| Ribs | protect the heart |
| Snail | has an outer skeleton shows very slow movement |
| Cockroach | can fly in the air. has an outer skeleton |
Q.4. Answer the following:
(a) What is a ball and socket joint?
Ans: The rounded end of one bone fits into the hollow space of the other bone. Such a joint is called a ball and socket joint.
(b) Which of the skull bones are movable?
Ans: Only the lower jaw of the skull is movable
(c) Why can our elbow not move backwards?
Ans: Our elbow cannot move backwards, because the el- bow has a hinge joint which allows movement only in one direction.
Additional Questions & Answers
A. Very short answer type questions and answers
Q.1. What are joints?
Ans: We are able to bend or rotate our body in places where two parts of our body seem to be joined together. These places are called joints.
Q.2. What is the function of joints in our body?
Ans: The joints help our body to move.
Q.3. What is a pivotal joint?
Ans: A joint in which a cylindrical bone rotates in a ring is called a pivotal joint.
Q.4. What is a hinge joint?
Ans: The joint which allows only a back and forth move- ment is called a hinge joint.
Q.5. What are fixed joints?
Ans: The joints at which bones cannot move are called fixe joints.
Q.6. What is a skeleton?
Ans: All the bones in our body form a framework to give a shape to our body. This framework is called the skeleton.
Q.7. What is a rib cage?
Ans: The ribs join the chest bone and the backbone to- gether to form a box. This is called the rib cage.
Q.8. What is a streamlined body shape?
Ans: The body shape in which the body tapers at both ends is called a streamlined body shape,
Q.9. How are the bones moved?
Ans: The bones are moved by alternate contraction and relaxation of two sets of muscles.
Q.10. Name the joints found in the following parts
(i) between the shoulder and the arm.
Ans: Ball and socket joint.
(ii) between the neck and the head.
Ans: Pivotal join
(iii) at the elbow and the knee.
Ans: Hinge joint.
(iv) between the upper jaw and the rest of the head.
Ans: Fixed joint.
Q.11. Fill in the blanks with the words from among the given alternatives.
(a) _______ joint allows movement in all directions. (Hinge / Ball and socket).
Ans: Ball and socket.
(b) _______ joint allows only a back and forth movement. (Hinge / Pivotal).
Ans: Hinge.
(c) The skull protects the _______ (heart / brain).
Ans: Brani.
(d) The ear is made up of _______ (bone / cartilage)
Ans: Cartilage.
(e) A muscle can only _______ (push/pull)
Ans: pull.
(f) The book “Gait of Animals’ was written by ______ (Aristotle/ Darwin).
Ans: Aristotle.
B. Short answer type questions and answers
Q.1. What is the skeleton made up of? Write the function of the skeleton.
Ans: The skeleton is made up of bones, joints and carti- lage.
Functions of the skeleton-
(i) It forms the framework to give a shape to our body.
(ii) It helps in movement of the bod.
(iii) It protects the internal organs.
Q.2. How do earthworms move?
Ans: Earthworms move by alternate extension and con- traction of the body using muscles. Tiny bristles on the under- side of the body help in gripping the ground.
Q.3. How do earthworms make the soil useful for plants?
Ans: The earthworms eats its way through the soil. Its body then throws away the undigested part of the material that it eats. This activity of the earthworms makes the soil more use- ful for plants.
Q.4. Write the functions of fins in fishes.
Ans: The functions of fins in fishes are –
(i) They help the fishes to swim ahead.
(ii) They help to keep the balance of the body.
(iii) They help to keep direction while swimming.
অসমীয়া মাধ্যমত পাঠভিত্তিক প্ৰশ্নোত্তৰ
প্ৰশ্ন : – ১) খালি ঠাই পূৰ কৰা :
ক) হাড়ৰ সন্ধিয়ে দেহৰ ― ত সহায় কৰে ।
উত্তৰঃ – হাড়ৰ সন্ধিয়ে দেহৰ চলন ত সহায় কৰে ।
খ) হাড় বা অস্তি আৰু উপাস্থি একেলগ হৈ দেহৰ ― গঠন কৰে ।
উত্তৰঃ – হাড় বা অস্তি আৰু উপাস্থি একেলগ হৈ দেহৰ জঁকা গঠন কৰে ।
গ) কিলাকুটিৰ হাড় ― সন্ধিৰ দ্বাৰা যোৰা লাগি থাকে ।
উত্তৰঃ – কিলাকুটিৰ হাড় কব্জা সন্ধিৰ দ্বাৰা যোৰা লাগি থাকে ।
ঘ) ― সংকোচনৰ বাবে হাড়ক চলনৰ সময়ত টানে ।
উত্তৰঃ – মাংসপেশী সংকোচনৰ বাবে হাড়ক চলনৰ সময়ত টানে ।
প্ৰশ্ন : – ২) তলৰ বাক্যবোৰৰ মাজৰ পৰা শুদ্ধ / অশুদ্ধ চিহ্নিত কৰা ।
ক) সকলো প্ৰাণীৰে চলাচল আৰু গমন প্ৰায় একে ।
উত্তৰঃ – অশুদ্ধ ।
খ) উপাস্থিবোৰ হাড়তকৈ টান ।
উত্তৰঃ – অশুদ্ধ ।
গ) হাতৰ হাড়ৰ সন্ধি নাই ।
উত্তৰঃ – অশুদ্ধ ।
ঘ) আগবাহুৰ দুডাল হাড় আছে ।
উত্তৰঃ – শুদ্ধ ।
ঙ) পইতাচোৰাৰ বাহ্যিক আৱৰণ আছে ।
উত্তৰঃ – শুদ্ধ ।
প্ৰশ্ন : – ৩) ক অংশৰ লগত খ অংশ মিলোৱা :
| ‘ক’ অংশ | ‘খ’ অংশ |
| ১) উৰ্ধ হনু | ক) দেহত ফান আছে |
| ২) মাছ | খ) বাহ্যিক জঁকা আছে |
| ৩) কামিহাড় | গ) বায়ুত উৰিব পাৰে |
| ৪) শামুক | ঘ) চলনহীন সন্ধি |
| ৫) পইতাচোৰা | ঙ) হৃদপিণ্ডক ৰক্ষা কৰেচ (চলন অতি লেহেমীয়াছ) অজ্ঞবিৰোধী ( stream lined ) দেহ আছে |
উত্তৰঃ –
| ‘ক’ অংশ | ‘খ’ অংশ |
| ১) উৰ্ধ হনু – | ঘ) চলনহীন সন্ধি । |
| ২) মাছ – | ক) দেহত ফান আছে । |
| ৩) কামিহাড় – | ঙ) হৃদপিণ্ডক ৰক্ষা কৰে । |
| ৪) শামুক – | খ) বাহ্যিক জঁকা আছে । |
| ৫) পইতাচোৰা – | গ) বায়ুত উৰিব পাৰে । |
প্ৰশ্ন : – ৪) তলৰ প্ৰশ্নবোৰৰ উত্তৰ দিয়া :
ক) বল আৰু চকেট সন্ধি কি ?
উত্তৰঃ – এডাল হাড়ৰ ঘূৰণীয়া মূৰটো আন এডাল হাড়ৰ গোলাকৃতিৰ গাঁতত সোমাই যি সন্ধি গঠন কৰে তাক বল আৰু চকেট সন্ধি বোলা হয় ।
| Sl. No. | Contents |
| Chapter 1 | খাদ্য: আমি ক’ৰ পৰা পাওঁ |
| Chapter 2 | খাদ্যৰ উপাদান |
| Chapter 3 | আঁহৰ পৰা কাপোৰলৈ |
| Chapter 4 | পদাৰ্থবোৰক বিভিন্ন ভাগত ভগোৱা |
| Chapter 5 | দ্ৰৱ্যৰ পৃথকীকৰণ |
| Chapter 6 | আমাৰ চৌপাশৰ পৰিবৰ্তনবোৰ |
| Chapter 7 | উদ্ভিদৰ বিষয়ে জানো আহা |
| Chapter 8 | দেহৰ চলন |
| Chapter 9 | জীৱ আৰু ইয়াৰ চৌপাশৰ বাতাবৰণ |
| Chapter 10 | গতি আৰু দূৰত্বৰ জোখ – মাপ |
| Chapter 11 | পোহৰ, ছাঁ আৰু প্ৰতিফলন |
| Chapter 12 | বিদ্যুৎ আৰু বৰ্তনী |
| Chapter 13 | চুম্বকৰ লগত খেলো আহাঁ |
| Chapter 14 | পানী |
| Chapter 15 | আমাৰ চৌপাশৰ বায়ু |
| Chapter 16 | আৱৰ্জনা নিষ্কাষন |
খ) লাওখোলাৰ চলনক্ষম হাড় কোনবোৰ ?
উত্তৰঃ – ) লাওখোলাৰ নিম্ন হনু চলনক্ষম ।
গ) আমাৰ কিলাকুটি পিছফালে বেঁকা কৰিব নোৱাৰি কিয় ?
উত্তৰঃ – কিলাকুটিত কব্জা সন্ধি ( hinge joint ) থকাৰ বাবে পিছফালে ঘূৰাব নোৱাৰি ।
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