All mammals (except a few) have_______________________ cervical vertebra.

1

(a)

7

The number of phalanges in each limb of human is___________________________

1

(a)

14

Thin filament of myofibril contains 2 'F' actins and two other proteins namely_________________ and_________________

1

(a)

tropomyosin, troponin

______________and______________ pairs of ribs are called floating ribs.

1

(a)

11th, 12th

Actin is present in thin filament

1

(a) True

(b) False

Human skeleton has 206 bones.

1

(a) True

(b) False

There are 11 pairs of ribs in man.

1

(a) True

(b) False

Sternum is present on the ventral side of the body.

1

(a) True

(b) False

Give an example of red muscle fiber.

1

(a)

Extensor muscle of human acid.

Which energy is converted to mechanical energy during contraction?

1

(a)

Chemical energy

What is the difference between the matrix of bone and cartilage?

1

(a)

The matrix of the bone is hard due to calcium salts, whereas, the cartilage has slightly pliable matrix due to chondroitin salts.

Give an example of cartilaginous joints.

1

(a)

The joint between the adjacent vertebrae of vertebral column.

Give the location of ball and socket joint in a human body

1

(a)

Shoulder joint (between pectoral girdle and head of humerus).

How many total bones are there in human body? Name the largest and strongest bone

1

(a)

Human body contains 206 bones. Femur is the largest and strongest bone of human body.

Name the pigment concerned with storage of oxygen in vertebrate muscles?

1

(a)

Myoglobin

Why is osteoarthritis common in old people?

2

(a)

What is the role of calcium in muscle contraction? 

2

(a)

What kind of muscle fibers are richly found in the extensor muscles of the back? What characteristics enable these fibres to serve their purpose?

2

(a)

What are floating ribs? How many of them are there in the human body?

2

(a)

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

3

(a)

In old age, people often suffer from stiff and inflammed joints. What is this condition called? What are the possible reasons for these symptoms?

3

(a)

Why are muscles rigidly locked in whatever position they are after death? What is the phenomenon known as?

3

(a)

Give the name of the major parts of human skeleton.Also mention the number of bones in each part.

3

(a)

What are the different types of movements exhibited by the cells of human body?

3

(a)

Differentiate between pectoral and pelvic girdle

5

(a)

(i) How does a muscle return to its original form during relaxation?Also draw a diagram showing relaxation of muscle.
(ii) What causes muscle fatigue?

5

(a)