BIOA02H3 Lecture Notes - Lecture 4: Cannabis Sativa, Suberin, Venus Flytrap

• School: UTSC
• Department: Biological Sciences
• Course: BIOA02H3
• Professor: Effiette Sauer

Document Summary

The plant is actually using the toxin in the gland as a defense mechanism. The female is more protective by the glands: fewer ovaries (egg cells) protect this valuable resource. Hair are used as a defense mechanism: stinging nettle, the hair is reinforce by silicate (glass) Individual cells of the epidermis grows into platelets. Upper leaf to be as dry and clean as possible. Grows those little pin head, where the water droplets is not actually in contact with the leaf. The leaf hairs have 3 hairs, if touch by a prey twice, the leaf is closed and digest for days. Filled with water that contain ezyme that digest the insects. Slide 11: star shape hair goeing outside the epidermis. Slide 13: if the plant grows for more than one season there is going to be some wear and tear this is where the periderm comes in. Slide 14: cork cambium: the source of periderm.