D. LONG ANSWER TYPE 1. What is the difference between (a) cell and tissue? (b) organ and organism? (c) organ and organelle ? (d) organ and organ system? 2 Differentiate between cells of: (a) Parenchyma and collenchyma (b) Meristematic tissue and permanent tissue (c) Sclerenchyma and parenchyma (d) Cells of involuntary and voluntary muscle (e) Fibres of voluntary muscle and cardiac muscle.
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Explanation:
Tissues comprise specialized cells. Therefore, they combine to form an organ to perform a specific function. An important difference between tissue and cell is that cells can divide through mitosis and meiosis. Tissues are formed through the regeneration of cells and fibrosis.
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- Cells form tissues, and tissues form organs. Organs that fulfill related functions are called organ systems. An organism is made up of interconnected organ systems.
- An organ is a group of tissues that forms a specific structure and functions definite tasks. An organism is a form of life. It may be unicellular or multicellular. An organ is composed of tissues.
- The main difference between organ and organelle is that organ is a large part of an organism, composed of tissues which perform similar functions whereas organelle is a specialized structure found inside cells, which carries out a specific life process. ... Kidney, heart, liver, lungs, and brain are the organs in humans.
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