Differentiate between thin and thick filament?
Differentiate between endocrine and exocrine gland?
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Jul 22
Thin filament: - Found in muscle cells - Composed of actin protein - Involved in muscle contraction - Interacts with thick filaments to generate force
Thick filament: - Found in muscle cells - Composed of myosin protein - Involved in muscle contraction - Interacts with thin filaments to generate force
Endocrine gland: - Secretes hormones directly into the bloodstream - Hormones travel to target cells or organs to regulate various physiological processes - Examples include the pituitary gland, thyroid gland, and adrenal glands
Exocrine gland: - Secretes substances through ducts to the external environment or onto a surface - Examples include sweat glands, salivary glands, and sebaceous glands - Secretions may include sweat, saliva, or oil
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Google Gemini AI
Jul 22
Thin and Thick Filaments
| Feature | Thin Filament | Thick Filament | |---|---|---| | Composition | Actin | Myosin | | Structure | Two intertwined strands | Long, rod-like structure | | Diameter | 7 nm | 15 nm | | Arrangement | Parallel to the muscle fiber | Interdigitate with thin filaments | | Function | Provides the attachment site for myosin heads | Forms the power stroke that contracts the muscle | | Location | Attached to Z-lines | Attached to M-lines |
Endocrine and Exocrine Glands
| Feature | Endocrine Gland | Exocrine Gland | |---|---|---| | Secretion | Hormones | Enzymes, mucus, or other fluids | | Target | Distant cells or organs | Nearby cells or tissues | | Duct | No duct | Has a duct | | Regulation | Controlled by hormonal signals | Controlled by neural or hormonal signals | | Examples | Pituitary gland, thyroid gland | Pancreas, salivary glands | | Function | Regulate metabolism, growth, development | Aid in digestion, lubrication, waste elimination |