Academic session 2026-27, Chapter 17 in the current curriculum.
Welcome to the NCERT Solutions for Class 11 Biology - Chapter Locomotion and Movement. This page offers a step-by-step solution to the specific question from Exercise 1, Question 5:
Write the difference between:
(a) Actin and Myosin
(b) Red and White muscles
(c) Pectoral and Pelvic girdle
Write the difference between:
(a) Actin and Myosin
(b) Red and White muscles
(c) Pectoral and Pelvic girdle
(a) Actin and Myosin
|
|
Actin |
|
Myosin |
|
1 |
Actin is a thin contractile protein. |
1 |
Myosin is a thick contractile protein. |
|
2. |
It is present in light bands and is called an isotropic band. (I-band) |
2 |
It is present in dark bands and is called an anisotropic band.(A-band) |
(b) Red and White muscles
|
|
Red muscle fibre |
|
White muscle fibre |
|
1 |
Red muscle fibres are thin and smaller in size. |
1 |
White muscle fibres are thick and larger in size. |
|
2 |
They are red in colour as they contain large amounts of myoglobin. |
2 |
They are white in colour as they contain small amounts of myoglobin |
|
3 |
They contain numerous mitochondria. |
3 |
They contain less number of mitochondria. |
|
4 |
They carry out slow and sustained contractions for a long period. |
4 |
They carry out fast work for short duration. |
|
5 |
They provide energy by aerobic respiration. |
5 |
They provide energy by anaerobic respiration. |
(c) Pectoral and Pelvic girdle
|
|
Pectoral girdle |
|
Pelvic girdle |
|
1 |
It is a skeletal support from where the forelimbs of vertebrates are attached. |
1 |
It is a skeletal support form where the hind limbs of vertebrates are attached. |
|
2 |
It is composed of two Bones namely, clavicle or collar bones and scapula or shoulder bone. |
2 |
It is composed of three bones, upper ileum, inner pubic, and ischium. |
NCERT questions are designed to test your understanding of the concepts and theories discussed in the chapter. Here are some tips to help you answer NCERT questions effectively:
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Welcome to the NCERT Solutions for Class 11 Biology - Chapter . This page offers a step-by-step solution to the specific question from Excercise 1 , Question 5: Write the difference between: (a) Actin and Myosin (b) Red and White muscles (c) Pectoral and Pel....
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Comments
Myosin
Bio should be banned!!
Joints