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?

Important Questions on Skeleton and Movements

HARD

11th Maharashtra Board

IMPORTANT

Biology>Chapter 16 - Skeleton and Movements>Exercise>Q 2

Sprain is more painful than fracture.Why?

HARD

11th Maharashtra Board

IMPORTANT

Biology>Chapter 16 - Skeleton and Movements>Exercise>Q 2

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

MEDIUM

11th Maharashtra Board

IMPORTANT

Biology>Chapter 16 - Skeleton and Movements>Exercise>Q 3

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

HARD

11th Maharashtra Board

IMPORTANT

Biology>Chapter 16 - Skeleton and Movements>Exercise>Q 3

Ragini, a

50

-year-old office goer, suffered hairline cracks in her right and left foot in short intervals of time. She was worried about minor jerks leading to hairline cracks in bones. The 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?

HARD

11th Maharashtra Board

IMPORTANT

Biology>Chapter 16 - Skeleton and Movements>Exercise>Q 3

How does structure of actin and myosin help muscle contraction?

HARD

11th Maharashtra Board

IMPORTANT

Biology>Chapter 16 - Skeleton and Movements>Exercise>Q 3

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

HARD

11th Maharashtra Board