Plant Structures/Functions Exam 2

Sugars are converted to hexophosphates (fructose+glucose), which become phosphorylated and split, resulting in 2 trio-phosphates, trio phosphates are oxidized and rearranged to get 1 molecule of pyruvate

Sensitized cells of the abscission zone respond to low concentrations of endogenous ethylene by synthesizing and secreting cell wall-degrading enzymes and cell wall-remodeling proteins

Ribose 1,5 bisphosphate carboxylase/oxygenase

The developmentally-regulated senescence of individual organs, ex: flowers

Rough percentage of energy that is turned into carbohydrates

C12H22O2 --> 12 CO2 +11 H2O

Gated channels that allow water movement

Moves photosynthate from the leaves to the roots and to flowers/seeds

Shrinkage of cellular protoplasm away from the cell wall

Connections between different stacks of thylakoids

Energy from sunlight energizes an electron in chlorophyll, moves along electron-transport chain in thylakoid membrane, aka photosynthetic electron-transfer reactions

Group of progenitor cells that give rise to leaf and bud primordia

Osmotically maintained pressure inside living plant cells

Leaf is fully healthy and functional before any signals indicating otherwise, a gradient of auxin from the leaf blade to the stem maintains the abscission zone in an insensitive state

Most photosynthesis occurs in...

Term for leaf venation in grasses/monocots

Proportionality constant that measures how easily a substance moves through a particular medium

Can be carried out in cytosol or plastids, NADPH is generated when glucose-6-phosphate is oxidized to ribose-5-phosphate, ribulose-5-phosphate is converted to fructose-6-phosphate and glyceraldehyde-3-phosphate through metabolic interconversions

Measure of the potential of water to move from 1 cell to another as influenced by solute concentration

Restores pool of ribulose 1,5 bisphosphate