Samuels BIO Internal Leaves

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These contain vascular tissue, xylem and phloem, within the leaf

These cells open and close the stomata regulate the flow of gases, particularly water vapor.

These allow air to move into and out of leaves as well as regulate transpiration.

This is the process by which a plant loses water vapor through its leaves and stems

This waxy structure is present in some plants, such as holly, for protection.

The middle portion of the leaf where photosynthesis takes place

Branching lines of veins in a leaf similar to the crown of deciduous trees denote

Straight lines of veins in a leaf denote