Nucleus was first discovered by – (RJ AARO Botany 2022)

✅ Explanation: Robert Brown, a Scottish botanist, discovered the nucleus in 1831 while studying orchid pollen, observing a dense structure within cells. This discovery helped establish the nucleus as a central organelle in eukaryotic cells.

📌 Other Options Explanations:
-Option A: Flemming: Known for his work on mitosis.
-Option B: Anderson: A physicist associated with particle physics.
-Option C: Robert Hooke: Discovered cells (not the nucleus) using a microscope.
Important Points
-Cell: The fundamental organizational unit of life, responsible for growth, replacing dead cells, and forming gametes for reproduction.
-Plasma Membrane: Separates cell contents, selectively allowing entry/exit of materials.
-Nucleus: Contains chromosomes with DNA for inheritance.
-Cytoplasm: Contains organelles like ER, Golgi apparatus, lysosomes, mitochondria, and vacuoles.
-Chloroplasts (in plant cells): Perform photosynthesis.