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CBSE - Class 11 Biology Locomotion and Movement Worksheet

Define sliding filament theory of muscle contraction.

How do you distinguish between a skeletal muscle and a cardiac muscle?

Draw the diagram of a sarcomere of skeletal muscle showing different regions.

Fill in the blank spaces:
(f) The human cranium is made of __________ bones.

Name the type of joint between the following:-
(f) between pubic bones in the pelvic girdle

Write the difference between :
(a) Actin and Myosin

Fill in the blank spaces:
(e) __________ and __________ pairs of ribs are called floating ribs.

Name the type of joint between the following:-
(a) atlas/axis

Name the type of joint between the following:-
(b) carpal/metacarpal of thumb

10.

Write true or false. If false change the statement so that it is true.
(a) Actin is present in thin filament

11.

Match Column I with Column II :

Column I Column II

(a) Smooth muscle (i) Myoglobin

(b) Tropomyosin (ii) Thin filament

(d) Skull (iv) Involuntary

12.

Fill in the blank spaces:
(b) The number of phalanges in each limb of human is __________

13.

Fill in the blank spaces:
(a) All mammals (except a few) have __________ cervical vertebra.

14.

Fill in the blank spaces:
(d) In a muscle fibre $Ca^{++}$ is stored in __________

15.

Write the difference between :
(b) Red and White muscles

16.

Write the difference between :
(c) Pectoral and Pelvic girdle

17.

Fill in the blank spaces:
(c) Thin filament of myofibril contains 2 ‘F’ actins and two other proteins namely __________ and __________.

18.

Write true or false. If false change the statement so that it is true.
(d) There are 11 pairs of ribs in man.

19.

Name the type of joint between the following:-
(c) between phalanges

20.

Write true or false. If false change the statement so that it is true.
(e) Sternum is present on the ventral side of the body.

Worksheet Answers

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