Across
- 2. The genetic material
- 4. chromosomes are made up of thread like structures
- 9. Double layer made up of fatty material
- 10. has the smallest cell of all the cells
- 14. this gives a cell its shape and consists of several proteins
- 15. Round bodies with digestive enzymes help destroying the harmful substances
- 17. Organelle that converts the chemical energy from food
- 18. Different types of tissues make
- 19. Structures present only in animal cells and help in cell division
- 21. Have more than one cell
Down
- 1. change of traits caused by different DNA order and number
- 3. Cell with no nucleus
- 5. organelle that holds the genetic material
- 6. System of membranes between nucleus and Golgi apparatus
- 7. small spheres that pinch off from Golgi transporting the materials
- 8. Protein factory
- 11. groups of cells form
- 12. basic units of heredity
- 13. Basic unit of life
- 16. small structures in the cytoplasm
- 20. Single stranded nucleic acid