Cells are the basic units of life, discovered by Robert Hooke in 1665. They are of two types: prokaryotes (small, simple cells without a nucleus, like bacteria) and eukaryotes (larger, complex cells with a nucleus and organelles, like plant and animal cells). Plant cells differ from animal cells by having a cell wall, chloroplasts, and a large vacuole. The cell membrane controls what enters and exits, while organelles such as the nucleus, mitochondria, ribosomes, ER, Golgi, lysosomes, and chloroplasts carry out vital functions. Cell size, shape, and number are key for efficiency, adaptation, and complexity.
Course Outcomes
A dedicated Biology Content Creator, Muthulakshmi specializes in crafting engaging and accessible educational materials. With extensive teaching experience, she transforms complex biological concepts into clear, inspiring lessons that spark curiosity in young learners. Her approach combines precision, warmth, and pedagogical depth.