Plant Physiology

2. — swollen or stiff condition as a result of being filled with liquid.
4. — membrane that permits a solution to move through it.
8. — pH of more than 7.0.
9. — a process in which energy and carbon dioxide are released due to digestion or the breakdown of plant tissues during periods of darkness.
10. — elements used in very small quantities.
11. — process by which a plant loses water vapor.
13. — provision of elements to plants.
14. — brightness of light.
16. — atom or a group of atoms that have an electric charge.

1. - green pigment in leaves.
3. — spaces between soil particles through which plant roots penetrate, and in which air, water, and nutrients are stored.
5. — addition of elements to a plant-growing environment.
6. — pH of less than 7.0.
7. — elements used in relatively large quantities.
12. — movement of materials through a semipermeable membrane.
13. - study of the functions and vital processes of living creatures and their organs.
15. - simple sugar and the building blocks for other nutrients.