Question 511 Mark
Fill in the blank:
Joints of bones help in the ______ of body.
Joints of bones help in the ______ of body.
Answer
View full question & answer→Joints of bones help in the movement of body.
Questions · Page 2 of 2
[1 Marks Each] QUE - ANS
Question 521 Mark
Name the three components of skeleton.
Answer
View full question & answer→Skeleton is made up of different bones, joints and cartilage.
Question 531 Mark
If backbone was made up of only one long bone, will you be able to bend?
Answer
View full question & answer→No.
Question 541 Mark
What type of substance is secreted by earthworm?
Answer
View full question & answer→Its body secrete a slimy substance to help in movement.
Question 551 Mark
What is cartilage? Give one example.
Answer
View full question & answer→These are some additional parts of the skeleton that are not as hard as the bones and which can be bent. For example, the upper part of our ear has cartilage.
Question 561 Mark
What are fixed joints?
Answer
View full question & answer→Joints at which bones cannot move are called fixed joints.
Question 571 Mark
Do the bones on top of the skull move?
Answer
View full question & answer→The bones on top of the skull form the structure similar to the structure of teeth. They are joined strongly with one another. So these bones are also fixed. These bones do not move.
Question 581 Mark
Fill in the blank:
Bones at the elbow are joined by a $.........$ joint.
Bones at the elbow are joined by a $.........$ joint.
Answer
View full question & answer→Bones at the elbow are joined by hinge ajoint.
Question 591 Mark
When you are writing in your notebook which part of the body are you moving?
Answer
View full question & answer→Hand.
Question 601 Mark
What is shape of body of fishes?
Answer
View full question & answer→Streamlined.
Question 611 Mark
What are ‘floating ribs’?
Answer
View full question & answer→The two lowermost pair of ribs that remain free are called floating ribs.
Question 621 Mark
What is the function of skeleton in human body?
Answer
View full question & answer→It gives frame and shape to our body and helps in movement.
Question 631 Mark
Why are we not able to move our upper jaw?
Answer
View full question & answer→We not able to move our upper jaw because the joint between our upper jaw and rest of the head is a fixed joint.
Question 641 Mark
Indicate true $(\checkmark)$ and false $(\times)$ among the following sentence.
Cockroaches have an outer skeleton.
Cockroaches have an outer skeleton.
Answer
View full question & answer→Cockroaches have an outer skeleton.$(\checkmark)$
Question 651 Mark
Why snake move fast but not in straight line?
Answer
View full question & answer→The snake body curves into many loops. Each loop of snake gives it a forward push to move forward very fast but not in straight line.
Question 661 Mark
Name the organs of locomotion of:
- Man.
- Bird.
- Fish.
Answer
View full question & answer→- Man – Legs.
- Bird – Wings.
- Fish – Fins.
Question 671 Mark
Provide one word answers to the statements given below.
Joint which allows movement in all directions.
Joint which allows movement in all directions.
Answer
View full question & answer→Ball and socket joint.
Question 681 Mark
What is rib cage?
Answer
View full question & answer→Ribs join the chest bone and back bone together to form box called rib cage.
Question 691 Mark
What is slithering?
Answer
View full question & answer→The movement of snakes is called slithering.
Question 701 Mark
What kind of body fishes has, which helps them to swim?
Answer
View full question & answer→Fishes have streamlined body which helps them to swim. Fins of the tail also help fish to swim.
Question 711 Mark
Name the longest and smallest bone in the human body.
Answer
View full question & answer→The longest bone is femur and smallest bone is stirrup.
Question 721 Mark
Provide one word answers to the statements given below.
Help in the movement of body by contraction and relaxation.
Help in the movement of body by contraction and relaxation.
Answer
View full question & answer→Muscles.
Question 731 Mark
Why is the upper part of the human ear not soft as the lower part or the earlobe?
Answer
View full question & answer→The upper part of the ear is made up of cartilage whereas the earlobe contains only muscles.
Question 741 Mark
Name the type of joint of your hand which help you to grasp a badminton racquet.
Answer
View full question & answer→Hinge joint of our hand helps us to grasp a badminton racquet.
Question 751 Mark
What is function of skull?
Answer
View full question & answer→Skull protects brain.
Question 761 Mark
What is muscle contraction?
Answer
View full question & answer→When the muscles become shorter, stiffer and thicker it is muscle contraction.
Question 771 Mark
Provide one word answers to the statements given below.
Framework of bones which gives shape to our body.
Framework of bones which gives shape to our body.
Answer
View full question & answer→Skeleton.
Question 781 Mark
Activity.Roll a strip of paper into a cylinder. Make a small hole in an old rubber or plastic ball (under supervision) and push the paper cylinder into it as shown in figure. You can also stick the cylinder on the ball. Put the ball in a small bowl.
Does the all rotate freely inside the bowl? Does the paper cylinder also rotate?
Does the all rotate freely inside the bowl? Does the paper cylinder also rotate?
Answer
View full question & answer→No, the ball does not rotate freely inside the bowl due to friction. Paper cylinder also rotates with the ball.
Question 791 Mark
Provide one word answers to the statements given below.
Joint where our neck joins the head.
Joint where our neck joins the head.
Answer
View full question & answer→Pivotal.
Question 801 Mark
Why do animals move from one place to other?
Answer
View full question & answer→Animals move from one place to other:
- To obtain their food and shelter.
- To protect themselves from enemies and unfavourable climate.
Question 811 Mark
Provide one word answers to the statements given below.
Hard structure that forms the skeleton.
Hard structure that forms the skeleton.
Answer
View full question & answer→Bones.
Question 821 Mark
Keeping your arm straight, move it forwards and backwards, up and down. Can the arm move freely in all directions?
Answer
View full question & answer→Yes, the arm can move forward, backward down and up.
Question 831 Mark
At which point does the arm rotate?
Answer
View full question & answer→The arm rotates on the round pit like structure.