Vocab Words

2. The growth of plants in response to external stimuli such as light(phototropism), gravity(gravitropism), and touch(thigmotropism)
4. A region on a stem where a leaf is or was attached
7. A vascular tissue made of long, hollow cells that carry water and dissolved minerals upward in a plant
8. A root system having one or a few main roots that are thicker and longer than the other roots of the plant
10. A strand of vascular tissue in leaves, non woody systems, and young plants
12. In plants, a noncellular protective covering over leaves and young stems
14. Opening between guard cells of a leaf that permit water vapor and gases to pass into and out of the leaf
15. The upper layer of leaf tissue that consists of tall, thin, closely packed that carry on the majority of photosynthesis

1. The lower layer of leaf tissue consisting of loosely packed cells that carry on photosynthesis and have many air spaces between them
3. The release of water from plant leaves through stomata
5. A root system having a cluster of roots that are about equal in size and lacking a tap root
6. One of the cells that surround a stoma on a plant leaf and control the opening and closing of the stoma
9. A vascular tissue that carries dissolved food in a plant
11. The part of a leaf between the node and the blade
13. A tissue that serves as a protective covering in plants