Locomotion and movement practice · Mixed difficulty

Assertion: Movement of body parts serves to change the body posture.

Reason: Movement of body parts occur in relation to the body axis.

Identify the correct statement from the following

To form the shoulder joint, glenoid cavity articulates with the

Knee joint is

Passage of ova through female reproductive tract is facilitated by

Study the following sentense .
I. The accumulation of pyruvic acid in the muscle causes fatigue
II. ATP is resynthesized in the muscle by the phosphorylation of ADP by a phosphogen.
III. Cori and cori’s cycle occurs in the muscles.
IV. The phosphogen in the vertebrate muscle is arginine phosphate.
The correct set of answers for muscle contraction is

Select the correct matching of the type of the joint with the example in human skeletal system:

Epiphyseal plates at the extremities of long bones help in

Read the statements regarding muscle proteins.
I. Actin is a thin filament and is made up of two F-actins.
II. The complex protein, tropomyosin is distributed at regular inervals of troponin.
III. Myosin is a thick filament which is also a polymerized protein.
IV. The globular head of meromyosin consists of light meromyosin (LMM).
Which of the above statements are correct?

Assertion: In muscle contraction, length of both A – bands and I – bands decrease
Reason: Both myosin of A – bands and actin of I – bands are contractile proteins and decrease in size during muscle contraction

Fascicles are held together by the structure

Name the ion responsible for unmasking of active sites for myosin for cross-bridge activity during muscle contraction.

Which statement is correct for muscle contraction?

Choose the correct statements regarding muscle proteins
I. Actin is a thin filament and made up of two F-actins
II. The complex protein, tropomyosin is distributed at regular intervals of troponin
III. Myosin is a thick filament which is not a polymerized protein
IV. The globular head of meromyosin consists of Light Meromyosin (LMM)
Option containing correct statement is

Why some muscles are Red fibres

Which of the following statement Is/ are correct / incorrect?
I. A-bands of the muscle is dark and contain myosin.
II. I-bands are the light bands and contain actin
III. During muscle contraction, the A-band contracts.
IV. The part between the two Z-lines is called as sarcomere.
V. The central part of thin filament, not overlapped by thick filament is called H-zone.

The number of cervical vertebrae present in giraffe is

Which of the following features differentiate bone from cartilage?

In a …A… state, the edge of thin filaments on either side of thick filaments …B… overlap the free ends of ...C… filaments leaving the central part of thick filaments. This central part of thick filament, not overlapped by thin filaments is called …D… zone.
Choose the correct options to fill the gaps A, B, C and D, so as to complete the given NCERT statement

Which of the following statements are correct regarding locomotion and movement?

(A) Movement is one of the significant features of living beings.

(B) Locomotion is generally for search of food and shelter only

(C) Human use limbs for changes in body postures and locomotion as well.

(D) All locomotion are movement but all movements are not locomotions.

Number of bones in axial skeleton is

Inflammation of joints due to accumulation of uric and crystals

Troponin is a

Assertion: White muscle fibres have very less quantity of myoglobin
Reason: White muscle fibres have high number of sarcoplasmic reticulum

The coxal of the pelvic girdle is formed by the fusion of

What is H-Zone

Select the correct option:

The shoulder blade is

Which of the following is smallest component of a muscle?

Fused vertebrae in human are
I. Sacral
II. Coccygeal
III. Thoracic
IV. Cervical
V. Lumber