Across
- 1. A membrane-bound organelle in green plant and algal cells that carries out photosynthesis.
- 2. The protein-rich semiliquid material in the interior of a chloroplast.
- 6. Pores on the leaf where O2 exits and CO2 enters
- 10. Converts light energy to the chemical energy of food
- 12. The biogeochemical cycle that describes the transformation and translocation of phosphorus in soil, water, and living and dead organic material.
- 14. The continuous movement of water within the Earth and atmosphere
- 16. The long-term warming of the planet's overall temperature
- 18. The light-absorbing green-coloured pigment that begins the process of photosynthesis.
- 19. The process in which carbon atoms continually travel from the atmosphere to the Earth and then back into the atmosphere
Down
- 1. Long-term shifts in temperatures and weather patterns
- 3. Gases in the earth's atmosphere that trap heat.
- 4. A process by which the molecules of a solvent pass from a solution of low concentration to a solution of high concentration through a semi-permeable membrane.
- 5. A biogeochemical process through which nitrogen is converted into many forms, consecutively passing from the atmosphere to the soil to organism and back into the atmosphere
- 7. Living in the absence of air or free oxygen
- 8. A molecule containing three high energy phosphate bonds that acts as the primary energy-transferring molecule in a living organism.
- 9. The state when two solutions have equal concentration of solutes across a semipermeable membrane
- 11. A nonmetallic element that exists in its free form as a colorless, odorless gas and makes up about 21 percent of the Earth's atmosphere.
- 13. A colorless, odorless gas
- 15. Requiring the presence of air or free oxygen for life
- 17. The chief source of energy for living organisms.
