Across
- 10. -magnifying lenses to examine small objects
- 12. - the death of cells which occurs as a normal and controlled part of an organism's growth or development.
- 13. - is a scientific theory which describes the properties of cells.
- 14. - building blocks of life
- 15. - a form of active transport in which a cell transports molecules
- 18. No. units in 1 m is 1,000,000
- 19. - the process by which plants
- 21. - surrounds the cell, controlling what goes into and out of the cell.
- 23. - s a part of the cell cycle in which chromosomes in a cell nucleus
- 24. a cell
- 25. - jelly- like fluid to hold all the organelles in place
Down
- 1. - exist at or from an earlier time.
- 2. have 3 or more lenses to choose from
- 3. the power labelled on it is x10
- 4. -often referred to as the 'control centre'
- 5. - only in plant cells
- 6. - a space or vesicle within the cytoplasm of a cell,
- 7. - invented the micrscope
- 8. -uses a lens close to the object being viewed to collect light
- 9. the scientist who came up with the term the cell.
- 11. - is a unit of spatial measurement that is 10-9 meter
- 16. - in the microscope to see the object
- 17. a plastid in green plant cells which contains chlorophyll and in which photosynthesis takes place.
- 18. - found in large numbers in most cells
- 20. cell- a neuron.
- 22. - in the human body
- 26. - in the microscope ,Allows you to direct ambient light up through the hole