Maharashtra State BoardHSC Science (General) 11th
Advertisement Remove all ads

Balbharati solutions for Biology 11th Standard Maharashtra State Board chapter 16 - Skeleton and Movement [Latest edition]

Advertisement Remove all ads

Chapters

Biology 11th Standard Maharashtra State Board - Shaalaa.com

Chapter 16: Skeleton and Movement

Exercise
Exercise [Pages 213 - 214]

Balbharati solutions for Biology 11th Standard Maharashtra State Board Chapter 16 Skeleton and Movement Exercise [Pages 213 - 214]

Exercise | Q 1. (A) | Page 213

Choose the correct option.

The functional unit of striated muscle is ______.

  • cross bridges

  • myofibril

  • sarcomere

  • z-band

Exercise | Q 1. (B) | Page 213

Choose the correct option.

A person slips from the staircase and breaks his ankle bone. Which bones are involved?

  • Carpals

  • Tarsal

  • Metacarpals

  • Metatarsals

Exercise | Q 1. (C) | Page 213

Choose the correct option.

Muscle fatigue is due to accumulation of _______.

  • pyruvic acid

  • lactic acid

  • malic acid

  • succinic acid

Exercise | Q 1. (D) | Page 213

Choose the correct option.

Which one of the following is NOT antagonistic muscle pair?

  • Flexo-extensor

  • Adductor-abductor

  • Levator-depressor

  • Sphinetro-suprinater

Exercise | Q 1. (E) | Page 213

Choose the correct option.

Swelling of sprained foot is reduced by soaking in hot water containing a large amount of common salt,

  • due to osmosis

  • due to plasmolysis

  • due to electrolysis

  • due to photolysis

Exercise | Q 1. (F) | Page 213

Choose the correct option.

Role of calcium in muscle contraction is ______.

  • to break the cross-bridges as a cofactor in the hydrolysis of ATP

  • to bind with troponin, changing its shape so that the actin filament is exposed

  • to transmit the action potential across the neuromuscular junction.

  • to re-establish the polarisation of the plasma membrane following an action potential

Exercise | Q 1. (G) | Page 213

Choose the correct option.

Hyper-secretion of parathormone can cause which of the following disorders?

  • Gout

  • Rheumatoid arthritis

  • Osteoporosis

  • Gull's disease

Exercise | Q 1. (H) | Page 213

Choose the correct option.

Select correct option between two nasal bones

Exercise | Q 2. (A) | Page 213

Answer the following question.

What kind of contraction occurs in your neck muscles while you are reading your class assignment?

Exercise | Q 2. (B) | Page 213

Answer the following question.

Observe the diagram and enlist importance of A, B and C.

Exercise | Q 2. (C) | Page 213

Answer the following question.

Raju intends to train biceps; while exercising using dumbbells, which joints should remain stationary and which should move?

Exercise | Q 2. (D) | Page 213

Answer the following question.

In a road accident, Moses fractured his leg. One of the passers-by tied a wooden plank to the fractured leg while Moses was rushed to the hospital. Was this essential? Why?

Exercise | Q 2. (E) | Page 213

Answer the following question.

Sprain is more painful than fracture. Why?

Exercise | Q 2. (F) | Page 213

Answer the following question.

Why a red muscle can work for a prolonged period whereas white muscle fibre suffers from fatigue after a shorter work?

Exercise | Q 3. (A) | Page 214

Answer the following question.

How is the structure of sarcomere suitable for the contractility of the muscle? Explain its function according to sliding filament theory.

Exercise | Q 3. (B) | Page 214

Answer the following question in detail.

Ragini, a 50-year-old office goer, suffered hair-line cracks in her right and left foot in short intervals of time. She was worried about minor jerks leading to hairline cracks in bones. Doctor explained to her why it must be happening and prescribed medicines.

  • What must be the cause of Ragini's problem?
  • Why has it occurred?
  • What precautions she should have taken earlier?
  • What care she should take in the future?
Exercise | Q 3. (C) | Page 214

Answer the following question.

How does the structure of actin and myosin help in muscle contraction?

Exercise | Q 3. (D) | Page 214

Answer the following question in detail.

Justify the structure of atlas and axis vertebrae with respect to their position and function.

Exercise | Q 3. (E) | Page 214

Observe the blood report given below and diagnose the possible disorder.

Report D

PERFECT PATHOLOGY              Reg. No:- ______
Dr. ___________                           Date:- _______
Patient name:- __________         Age:- _______ M/F
Reference:-

Examination of Blood

Test                    Result                 Normal value
Uric Acid            9.2                     2.5 - 7.0 mg/dL
Blood Urea         24                     10 - 20 mg/dL
Nitrogen (BUN)

Exercise | Q 4. (A) | Page 214

Write a short note on Actin filament.

Exercise | Q 4. (B) | Page 214

Write short notes on Myosin filament.

Exercise | Q 4. (C) | Page 214

Write a short note on role of calcium ions in contraction and relaxation of muscles.

Exercise | Q 5. (A) | Page 214

Draw labelled diagram Synovial joint.

Exercise | Q 5. (B) | Page 214

Draw labelled diagram of different cartilaginous joints.

Advertisement Remove all ads

Chapter 16: Skeleton and Movement

Exercise
Biology 11th Standard Maharashtra State Board - Shaalaa.com

Balbharati solutions for Biology 11th Standard Maharashtra State Board chapter 16 - Skeleton and Movement

Balbharati solutions for Biology 11th Standard Maharashtra State Board chapter 16 (Skeleton and Movement) include all questions with solution and detail explanation. This will clear students doubts about any question and improve application skills while preparing for board exams. The detailed, step-by-step solutions will help you understand the concepts better and clear your confusions, if any. Shaalaa.com has the Maharashtra State Board Biology 11th Standard Maharashtra State Board solutions in a manner that help students grasp basic concepts better and faster.

Further, we at Shaalaa.com provide such solutions so that students can prepare for written exams. Balbharati textbook solutions can be a core help for self-study and acts as a perfect self-help guidance for students.

Concepts covered in Biology 11th Standard Maharashtra State Board chapter 16 Skeleton and Movement are Movements and Locomotion, Location and Structure of Skeletal Muscles, Working of Skeletal Muscles, Mechanism of Muscle Contraction, Physiology of Muscle Relaxation, Relaxation of Muscle Fibres, Skeletal System, Group of Skeleton, Types of Joints, Disorders Related to Muscles, Disorders Related to Bones.

Using Balbharati 11th solutions Skeleton and Movement exercise by students are an easy way to prepare for the exams, as they involve solutions arranged chapter-wise also page wise. The questions involved in Balbharati Solutions are important questions that can be asked in the final exam. Maximum students of Maharashtra State Board 11th prefer Balbharati Textbook Solutions to score more in exam.

Get the free view of chapter 16 Skeleton and Movement 11th extra questions for Biology 11th Standard Maharashtra State Board and can use Shaalaa.com to keep it handy for your exam preparation

Advertisement Remove all ads
Share
Notifications

View all notifications


      Forgot password?
View in app×