PSEB Class 6 Science Chapter 8 Body Movements Questions and Answers Solution
PSEB Punjab Board Class 6 Science Textbook Solution Chapter 8 Body Movements Exercise Questions and Answers. We have also included some Additional questions, so that students can prepare more strongly.
(1) Fill in the blanks: –
(a) The points where bones meet is called Ligament.
(b) Human skeleton is made up of bones and cartilages.
(c) Skull protectsthe brainof body.
(d) Earthworm can extend or shorten its body by using its muscles.
(e) Knee joint is an example of hingejoint.
(2) Write true or false: –
(a) Rib cage is conical structure made up of 12 parts of ribs.
→True
(b) Cartilages are harder than bones.
→ False
(c) Bones do not need the help of muscles to move.
→ False
(d) A streamlined body is one in which middle part of body is larger than head and tail part.
→True
(e) Snakes move very fast in straight line.
→ False
(3) Match the Column A with column B.
→
A | B | |
1. | Ball and Socket Joint | Shoulder |
2. | Immoveable Joint | Skull bones |
3. | Hing Joint | Fingers |
4. | Pivot Joint | Movement of Head |
5. | Gliding Joint | Wrist bones |
(4) Choose the correct answer: –
(i) Which of the following organ is protected by rib cage
(a) Heart
(b) Brain
(c) Eyes
(d) Ear
→ (a) Heart
(ii) Snail moves with the help of
(a) Shell
(b) Bones
© Muscular foot
(d) Cartilage
→(c) Muscular foot
(iii) Fish maintains its balance in water and change its directions with the help of.
(a) Head
(b) Gills
(c)Fins
(d) Body scales
→ (c) Fins
(5) Very short answer type questions: –
(i) Name the longest bone in human body?
→‘Backbone’ or ‘Vertebral Column’ is the longest bone in human body.
(ii) Name the type of joint where arms join the shoulder?
→‘Pectoral girdle’is the joint where arms join the shoulder.
(iii) What is the difference between movement and locomotion?
→‘Movement’: is a change in the position of any part of body of an organism.
‘Locomotion’: is movement of whole body of an organism from one place to otherplants are generally fixed to ground.
(iv) Give an example of an organism which can walk, climb, and fly?
→Human beings can walk. Birds can fly in air, walk/run on ground and some can Swim in water. Cockroach can walk, climb, and fly, there are adhesive pads at the end of legs which enable it to climb.
(6) Short answer type questions: –
(i) Why we need a part of muscles to move a bone?
→Bones need the help of a specialized tissue called muscles to move. Muscles are attached to bones with the help of strong fibrous tissue called ‘tendon.’ So, we can move our bones only at the points where bones are joined together but bones alone cannot move by themselves.
(ii) How does earthworm move?
→ Earthworms moves with the help of muscles. To move forward, it first extends front part of body, keeping the rear part fixed to ground. Then it fixes its front part to ground and releases the rear part which contracts and moves ahead. By repeating such muscular contractions and expansions, it moves through the soil.
(iii) How does the body of a bird help it in flight?
→ Birds can fly in air because of, their forelimbs are modified into wings. Which help in flight. Besides this streamlined shape of their body hollow and light weight bones help them during flight. Also, birds keep their hind limbs close to body which reduces resistance from air.
(7) Long answer type questions: –
(i) Explain different types of joints present in human body?
→Joints is a place where bones join with each other. Bones are connected together by elastic tissue called ‘ligament.’
There are two types of major Joints : (1)Fixed Joints : The joints where no movementof bones is possible are called fixed joints. For example, the joints in skull are fixed joints.
(2)Moveable Joints : The joints where movement ofbones are possible is called moveable joints. Categorized of four types : (a) Ball and socket Joint : In this joint a ball like rounded end of one bone fits into socket like cavity of another bone.
(b) Pivot Joint : In this joint one bone is like a bony cylinder and other is like a ring. The joint where our neck joins the head is a pivot joint. It allows the movement of head backward, forward, left, and right.(c) Hing Joint : This joint is like hinge in door, it allows movement of bones only in one direction that is up and down or back and forth. Such joints are present in fingers, knees and toes. (d) Gliding Joint : This joint allows bones to glide over each other providing only a little movement in all directions. Joints between ankle bones are gliding joints.
(ii) Explain the locomotion in Fish?
→The shape of fish is somewhat like that of boat. The head and tail of fish are smaller than the middle part of body. The body tapers at both ends. This body shape is called streamlined. The fish forms a curve fish produces regular jerks by making such curves and pushes the body forward. The body movement is further helped by fins present in body. These fins help them to maintain balance and change directions while swimming.
*EXTRA QUESTIONS AND ANSWERS
Write answer in short: –
(1) What means body movement? Explain with example?
→When any part of our body moved from any angle for some purpose its called body movement. For example, our neck moved for watching right or left, our handmoved for putting and eating some food etc.
(2) What is locomotion?
→ Locomotion is the whole-body movement from one place to another place.
For example, walking for jogging, running by horse, swimming by swimmer etc.
(3) What is Cartilage?
→Cartilage comprises smooth and flexible part of human body, cartilage found between joints of two bones. e.g. ear lobe and nose etc.
(4) What is Skeleton?
→Human beings whole body made from bones, muscles, skin, etc. all the part of our body connected with each other’s this structure of body frame in one shape or structure this is called a skeleton.
(5) How many bones in adult human body?
→There is total 206 bones in adult human body.
(6) Define ‘Skull’ properly?
→ Skull is the very important part of human body; all the bones of skull are fixed. Skull protects our important organ that is “Brain.”
(7) How many types of ‘main Joints’ in human body?
→A human body have two types of joints, (1) Fixed Joints : This type of joints is fixed there are no movement, so it called fixed joints. For example, skull of human.
(2) Moveable Joints : Which joints can help to moving bones it called moveable joints.
(8) Describe locomotion of snake?
→Snakes cannot move in straight line. So, snake moves by turning has body into alternate looping system to forward has body. Snakes moving by creeping on their belly, because snakes do not have legs.
(9) Which plant can do not locomotion but there are movements happened?
→All types of plants are fixed to ground. So, they cannot locomotion but the plant ‘Touch me not’ showing movement when we touch it.
(10) Describe Rib Cage?
→ A human body 12 pairs of thin flat and curved bones its called ribs. These are attached to vertebral column at back and Breast bone (Sternum) in front. The last two pairs of ribs are not attached to sternum. The rib cage protects important organs including heart, lungs, and kidneys.