The nucleus controls all activities of the cell. It contains DNA, which holds instructions for growth, reproduction and functioning. It is often called the control center or brain of the cell. Class 8 Science Curiosity Chapter 2 The Invisible Living World: ...
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The cell wall provides shape, strength and protection to plant cells. Made of cellulose, it helps maintain rigidity, supports plant structure and prevents excessive water intake or damage. Class 8 Science Curiosity Textbook Chapter 2 The Invisible Living World – Beyond ...
Cells contain organelles like the nucleus, mitochondria and vacuoles. Each performs specific functions vital to life, proving that cells are organized systems, not just bags of cytoplasm or fluid. Class 8 Science Curiosity Chapter 2 The Invisible Living World: Beyond Our ...
Stomach cells perform digestion-related tasks. Some secrete acids, others produce enzymes and some form protective layers. Muscle cells aid in churning food for effective digestion. Class 8 Science Curiosity Chapter 2 The Invisible Living World: Beyond Our Naked Eye NCERT solutions Class ...
A cell’s shape is tailored to its job. Long cells transmit signals, flat ones cover surfaces and round ones store substances, ensuring each performs its function efficiently. Class 8 Science Curiosity Grade 8 Chapter 2 The Invisible Living World Beyond Our ...