Across
- 1. is a living thing
- 5. plants breathe this gas in and humans breathe this gas out
- 6. food producing organelle found in plant cells that convert light energy into sugars
- 7. power required for sustained activity
- 8. small infective agent that replicates itself inside a cell
- 9. substances that can be eaten to sustain life
- 10. an illness that affects a living thing preventing the body from working normally
- 11. the outer wall of an animal cell
Down
- 1. a gas which animals, including human, need to survive
- 2. the part of the cell where energy is generated by the production of respiration
- 3. a clear jell-like fluid inside a cell
- 4. an optical instrument used for viewing very
- 5. smallest living unit of a plant or animal