BIO 4130 Lecture Notes - Lecture 6: Crassulacean Acid Metabolism, Succulent Plant, Stoma
9 Jul 2020
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Document Summary
Used for support in plants and in some invertebrates. Cell walls allow development of turgor pressure - when water moves into a cell, the expanding cell presses against the cell wall. The in uence of water availability on white-tailed deer in texas. Shed leaves in the dry season or use an annual life cycle. Plants with succulent stems/leaves can store water in their tissues. Increase the ratio of root to shoot biomass. Skin resistance to water loss in animals organisms tied to aquatic or moist habitats. Mammals and birds have similar skin, and fur or feathers to minimize water loss. Reptiles have thick skin with layers of dead cells, fatty coatings, and plates or scales. Desert invertebrates have the highest resistance to water loss (cid:12254) The outer exoskeleton of chitin is covered by waxy hydrocarbons that are impervious to water. Hyperosmotic = extracellular uid osmolarity is is greater than that of intracellular uid, cells and tissue experience hyperosmotic stress.
