SELECT * FROM question_mgmt as q WHERE id=67 AND status=1 SELECT id,question_no,question,chapter FROM question_mgmt as q WHERE courseId=2 AND subId=7 AND chapterId=23 and ex_no='1' AND status=1 ORDER BY CAST(question_no AS UNSIGNED)

Question:

Write the difference between:
(a) Actin and Myosin
(b) Red and White muscles
(c) Pectoral and Pelvic girdle

Answer:

(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.

 


< Previous Question

Next Question >

SELECT ex_no,question,question_no,id,chapter FROM question_mgmt as q WHERE courseId='2' AND subId='7' AND ex_no!=0 AND status=1 and id!=67 ORDER BY views desc, last_viewed_on desc limit 0,10

  • Popular questions of class 11 Biology

SELECT ex_no,question,question_no,id,chapter FROM question_mgmt as q WHERE courseId='2' AND subId='7' AND ex_no!=0 AND status=1 and id!=67 ORDER BY last_viewed_on desc limit 0,10

  • Recently Viewed Questions of Class 11 Biology

Comments

  • Answered by Ekta Mehta
  • 4 months ago

Taking Screenshots on your Samsung Galaxy M31s is very easy and quick.

  • Answered by Ekta Mehta
  • 4 months ago

Taking Screenshots on your Samsung Galaxy M31s is very easy and quick.

  • Answered by Ekta Mehta
  • 4 months ago

Taking Screenshots on your Samsung Galaxy M31s is very easy and quick.

Comment(s) on this Question


Important links

Quick Links

Resources

Support