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CBSE Questions for Class 6 Biology Body Movements Quiz 2 - MCQExams.com
CBSE
Class 6 Biology
Body Movements
Quiz 2
Hinge joints are present in the ........... region.
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Neck
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Shoulder
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Elbow
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Skull
Explanation
Our body is made up of many joints. Each of these joints is of different categories and perform specific functions. They may be movable joints or immovable joints. Among the movable joints, some are hinge joints. This means that they are able to move about one axis. They are a type of synovial joint.
So the correct option is C.
Is the given statement true or false?
Plants are not capable of movement.
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True
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False
Explanation
Plants are not capable to move from one place to another (locomotion). However they are capable of movement and exhibit different kinds of movements.
Hence the statement is false.
State whether the given statement is true or false.
All the parts of the body are capable of movement.
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True
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False
Explanation
All the parts of the body are not capable of movement. Only the joints show movement. These are regions where 2 or more bones meet.
Hence the statement is false.
Rotation of arm in a full circle is possible due to ............ joint.
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Ball and sockets
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Gliding
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Pivot
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Hinge
Explanation
The arm is joined to the shoulder girdle/ pectoral girdle by the ball and socket type of joint. The ball and socket joint is the strongest type of joint in the human body. It provides a maximum rotation of 360 degrees i.e full circle/ circumvention. This makes possible the rotation of the arm in a full circle.
Gliding joint is also known as a plane joint or planar joint. It is a common type of synovial joint formed between bones that meet at flat or nearly flat articular surfaces. These joints are found in the articulations between the bones of the wrist and those of the ankle.
Pivot joint is a type of synovial joint, also called rotary joint, or trochoid joint. It is freely moveable joint (diarthrosis) that allows only rotary movement around a single axis. Example: pivot joint between radius and ulna of the forearm.
The hinge joint is a common class of synovial joint that includes the ankle, elbow and knee joints. Maximum rotation is 180 degrees.
Thus, rotation of the arm in a full circle is possible due to ball and socket type of joints.
Which of the following statements is not true?
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A snake moves by making loops.
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All animals show exactly similar movements.
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Snails move with the help of their muscular feet.
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Cockroaches possess various type of locomotion; they can walk, climb, fly.
Explanation
All animals exhibit different patterns of movements.
Example: In birds, the forelimbs are modified to result in wings, which leads to flying movement.
In case of kangaroos, the hind limbs are modified such that they contain flexible muscles resulting in their jumping movement.
In humans, the legs are modified so that they walk with two limbs only, as opposed by other vertebral mammals like dogs, cats etc. which have 4 limbs.
Cockroaches are capable of flying, walking and climbing.
Hence the statement, 'all animals show exactly same movements' is false.
So, the correct answer is option B.
A snail moves with the help of its ____.
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Shell
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Wings
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Bristles
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Feet
Explanation
There are different modes of locomotion in different animals.
Snails have small muscular foot at the bottom of their bodies.
They move with the help of these small muscular feet.
Their body releases mucus which helps in movement and also prevents drying up of their bodies.
So, option D "Feet" is the correct answer.
Another name for the shoulder joint is
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Gliding joint
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Ball and socket joint
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Hinge joint
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Pivot joint
Explanation
The shoulder joint/ glenohumeral joint is a type of ball and socket joint.
The ball and socket joint also called as a spheroidal joint. It is a joint in which the ball-like rounded surface of a bone moves within a
cup-like
depression on another bone, this allows greater freedom of movement than any other kind of joint.
Maximum rotation in ball and socket joints is 360$$^o$$ i.e. full circle.
Hence, as the shoulder joint is of ball and socket type, hence it is also named as 'ball and socket joint'.
Elbow joint is an example of _______ joint.
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Ball and socket
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Gliding
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Hinge
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Pivot
Explanation
In hinge joints, the ends of the bones forming the joint, fit together like a hinge on a door, and movement is therefore restricted to only in one plane.
Examples of hinge joints are the elbow joint, knee joint, ankle joint, etc.
So, the correct answer is option C.
The column of bones from neck to seat form the _________________.
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Spinal cord
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Skull
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Girdles
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Backbone
Explanation
The backbone is called the vertebral column. It is made of several small bones called vertebrae. The vertebral column protects the spinal cord.
How many legs of cockroach move at the time of walking ?
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6
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3
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2
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4
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Answer required
Which of the following protects the brain?
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Ribcage
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Skull
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Pelvic bones
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Vertebral column
Explanation
The ribcage protects the heart, lungs and provides secondary protection to other human abdominal organs. The vertebral column protects the spinal cord. Pelvic bones protect some of the reproductive, digestive, and urinary organs. The brain is protected by the
skull.
Hence, the correct option is B.
The given structure protects which of the following body parts?
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Heart
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Wings
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Lungs
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Brain
Explanation
The given structure represents the ribcage. The ribcage protects many internal organs like heart and lungs. It also acts as the secondary protector of organs in the human abdominal region. The ribcage is made up of bones which are of fixed type/ fixed joints.
How many pairs of legs are present in a cockroach?
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Three
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Two
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One
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None of the above
Explanation
The body of a cockroach is divided into three parts—head, thorax, and abdomen.
The thorax region has 3 pairs of legs.
The legs of the cockroach help in locomotion.
So, the correct answer is option A.
Which of the following body parts has hinge joint?
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Shoulder
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Ribcage
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Knee
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Vertebrae
Explanation
The shoulder has the ball and socket joint.
The ribcage has a cartilaginous joint. It joints the ribs and costal cartilage in the front of the ribcage.
Knees have hinge joint. Apart from knees, elbows and fingers also have hinge joints.
Vertebrae have cartilaginous joints.
Thus, the correct answer is option C.
Which of the following organisms does not have both muscles and skeleton for movement?
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Dog
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Snail
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Earthworm
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Human being
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None of these
Explanation
Dogs and human beings have both muscles and skeletons that coordinate together to bring about movement.
The earthworm has muscles and moves by contraction and relaxation of the muscles.
Snails move with the help of muscular feet.
So, the correct answer is '
None of these'.
A cricket player is fast chasing a ball in the field. Which one of the following groups of bones is directly contributing in this movement?
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Femur, malleus, tibia, metatarsals
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Pelvis, incus, patella, tarsals
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Sternum, femur, tibia, fibula
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Tarsals, femur, metatarsals, tibia
Explanation
When the cricket player is chasing the ball, he is running fast and his legs are involved in this. So the bones of legs are directly contributing in this movement and these bones are tarsals, femur, metatarsals and tibia.
So, the correct answer is '
Tarsals, femur, metatarsals, tibia'.
State whether the given statement is true or false.
The arms are capable of complete rotation.
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True
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False
Explanation
The arms are capable of complete rotation due to the joint present at the shoulder. An example of such movement is when a bowler delivers a cricket ball.
Hence the given statement is true.
State whether the given statement is true or false.
Neck is capable of complete rotation.
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True
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False
Explanation
The neck can only undergo partial rotation. Certain parts of the body like arms can undergo complete rotation.
Hence the given statement is false.
Underwater divers wear fin-like flippers on their feet to
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Swim easily in water.
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Look like a fish.
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Walk on water surface.
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Walk over the bottom of the sea (sea bed).
Explanation
Divers when going underwater wear fin-like flippers on their feet to make their body to get efficient which helps to reduce the haul of water acting on their body, thus helping them to move easily and quickly in deep water.
So,
the correct answer is option (a) swim easily in water.
Ram kicks a football. This is due to the action of
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Hip
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Toes
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Knees
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None of these
Explanation
Kicking the ball involves the bending of the leg which is made possible by the joint at the knees. Knees allow the leg to bend only in the backward direction.
Hence the correct option is C.
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