BIOL 1030 Lecture Notes - Lecture 30: Axillary Bud, Pinnation, Guard Cell

• School: University of Manitoba
• Department: Biological Sciences
• Course: BIOL 1030
• Professor: Scott Kevin

Document Summary

Blade is not divided into leaflets - entire. Blade is divided into leaflets - one leaf with 7 leaflets: pinnate leaf, palmate. Axillary bud is present at the base of a leaf, but not a leaflet. At the apex of a stem there is a terminal bud, but there are none at the apex of the leaves. Co2 + h2o --> sugar + o2. Co2 uptake and o2 releases through open stomata. H+ is needed, plants get it from water: transpiration. Water loss through the open stomata: gas exchange. Hydrophobic, important to restrict h2o loss but. Bound a pore called the stoma that leaves to the internal tissue. The wall of the cell close to the stomata is thicker than the outside wall. Changes in turgor, open and close the stomata. Due to reversible uptake and loss of k+ cations by guard cells.