Cells Revision

5. a watery, jelly-like mixture that contains many smaller parts where the work of the cell takes place
9. Cell____ the skeleton of the plant
10. process used by plants to make food from water and carbon dioxide using energy from the Sun
11. cell division that produces two identical cells
12. one-thousandth of a millimetre, or one millionth of a metre
17. very simple unicellular organisms that lack a nucleus and other organelles
18. describes objects that can only be seen using a microscope
22. the green chemical in chloroplasts that traps the Sun’s energy for photosynthesis
23. Cell _____: the ‘skin’ that holds the cell together. It controls what comes into and leaves the cell
24. a microscope that uses light to reveal the image
26. the control centre of a cell

1. the powerhouses of the cell where the energy is released from food
2. organelle within the cell where photosynthesis takes place
3. the lens of the microscope closest to the stage
4. made bigger
6. the amount by which the image is magnified (made bigger) compared to the real object (specimen)
7. the building blocks of all living things
8. the amount of the specimen seen through a microscope ( 3 words)
13. organisms (living things) made up of only one cell
14. instrument used to make very small things look bigger
15. the smaller parts of a cell
16. small structure in animal cells that may contain wastes or chemicals, or large sap-filled structure in plant cells that stores water, wastes and nutrients
19. the object being looked at through a microscope
20. microscope that uses beams of electrons to magnify up to a million times. There are two (TEM) and (SEM).
21. what is seen using the microscope
25. cells that work in pairs to open and close the stomata