Skeleton and Movement
Maharashtra Board · Class 11 · Biology
Flashcards for Skeleton and Movement — Maharashtra Board Class 11 Biology. Quick Q&A cards covering key concepts, definitions, and formulas.
Interactive on Super Tutor
Studying Skeleton and Movement? Get the full interactive chapter.
Quizzes, flashcards, AI doubt-solver and a step-by-step study plan — built for flashcards and more.
1,000+ Class 11 students started this chapter today
What is the difference between movement and locomotion?
Answer
Movement refers to any change in position of body parts or internal components (like heartbeat, peristalsis). It can be internal or external, voluntary or involuntary. Locomotion specifically refers t…
What are the four basic types of locomotory movements in animals?
Answer
1. Amoeboid movement - performed by pseudopodia (e.g., leucocytes) 2. Ciliary movement - performed by cilia (e.g., ciliated epithelium, Paramecium) 3. Flagellar movement - performed by flagella (e.g.,…
Define sarcomere and explain its role in muscle contraction.
Answer
Sarcomere is the contractile unit of skeletal muscle, located between two Z-lines. It contains two main contractile proteins - actin (thin filaments) and myosin (thick filaments). During contraction, …
Describe the structure and components of myosin filament.
Answer
Myosin filament is a thick contractile protein consisting of: 1. Heavy meromyosin (HMM) - two heavy chains coiled around each other forming double helix 2. Myosin head - globular protein mass at one e…
What are the three components of actin filament?
Answer
1. F-actin - Double-stranded backbone made of polymerized G-actin molecules, each with one ADP molecule attached 2. Tropomyosin - Two protein strands loosely attached to F-actin that physically cover …
Explain the sliding filament theory of muscle contraction step by step.
Answer
Steps of sliding filament theory: 1. Nerve impulse reaches muscle fiber 2. Action potential spreads through T-tubules 3. Calcium ions released from sarcoplasmic reticulum 4. Calcium binds to troponin,…
What happens during muscle relaxation?
Answer
During muscle relaxation, events occur in reverse order: 1. Stimulation stops and actomyosin complex breaks down (requires ATP) 2. Myosin head detaches from actin filaments 3. Calcium ions actively re…
Define antagonistic muscles and give examples.
Answer
Antagonistic muscles are pairs of muscles that produce opposite actions at the same joint. When one contracts, the other relaxes to allow smooth movement. Examples: 1. Biceps (flexor) and Triceps (ext…
+12 more flashcards available
Practice AllFrequently Asked Questions
What are the important topics in Skeleton and Movement for Maharashtra Board Class 11 Biology?
How to score full marks in Skeleton and Movement — Maharashtra Board Class 11 Biology?
How many flashcards are available for Skeleton and Movement?
Sources & Official References
Content is aligned to the official syllabus. Refer to the board website for the latest curriculum.
More resources for Skeleton and Movement
Important Questions
Practice with board exam-style questions
Syllabus
What topics to cover
Revision Notes
Key points for last-minute revision
Study Plan
Step-by-step plan to ace this chapter
Formula Sheet
All formulas in one place
Chapter Summary
Understand the chapter at a glance
Practice Quiz
Test yourself with a quick quiz
Concept Maps
See how topics connect visually
For serious students
Get the full Skeleton and Movement chapter — for free.
Quizzes, flashcards, AI doubt-solver and a step-by-step study plan for Maharashtra Board Class 11 Biology.