BIOLOGY

THE CELL
1. study of cell is called CYTOLOGY.
2. ROBERT HOOKE coined the term cell.
3. The First Living cell was discovered by LEUWENHOEK.
4. NUCLEUS is the known as the master of cell.
5. The Basic unit of life is CELL
(Also structural and functional unit of life)
6. MITOSIS only cell division is used to Repair injury in the body.
7. LYSOSOME is only found in animal cell.
*Lysosome help in digestion
8. "Suicide bag" of the cell is LYSOSOME.
* Lysosome discovered by Christian de Duve in 1949
9."Powerhouse" of the cell is MITOCHONDRIA.
*Mitochondria discovered by Richard Altman in 1890
10. "Protein factory" of the cell is RIBOSOMES.
*Ribosome discovered by George palade in 1955
*Ribosome help in protein synthesis
11. VIRUS is not follow the cell theory.
12.Complex Carbohydrate that make up cell wall in plant cell called CELLULOSE.
13. Chloroplast is cell organelle found in Plant cell but not in Animal cell.
14. The Largest known Cells are unfertilized is OSTRICH EGG.
15. The smallest cell is Mycoplasma gallisepticum (PPLO).
16. "HUMAN NERVE CELL" is the longest animal cell.
17. The largest human cell is the Female Ovum.
18. The smallest human cell is the SPERM.
19. "CENTROSOME" was discovered by T.Boveri.
20. "NUCLEUS" was discovered by Robert Brown 1831.
21. DNA who was discovered by James D Watson and Francis Crick.
22. In human, each cell normally contains 23pairs of chromosomes.
23. Cell wall and plastids are present Plant Cell.
( FOR RRB NTPC, Railway Group d, SSC & ALL GOVT. EXAM PREPARATION)
Physics
Chemistry
Biology
Polity
Geography
History
Current affairs
Miscellaneous
- INDIAN RUPEES
- INDIA'S NATIONAL PARK AND WILDLIFE SANCTUARY
- BOOKS AND AUTHOR PART 1
- BOOKS AND AUTHOR PART 2
- NOBEL PRIZE 2020
- ORGANIZATION AND HEADQUARTER