11
Carbohydrate and
lipid metabolism
Carbohydrate and lipid metabolism
Sucrose synthesis
UDP-glucose
Carbohydrate and lipid metabolism
Sucrose degradation
Carbohydrate and lipid metabolism
Sucrose degradation
Carbohydrate and lipid metabolism
Starch
Starch, a polymer of
glucose, is synthesized
and stored in plastids.
Starch synthesis protects
plastids from osmotic
disruption.
Starch is organized into
grains that grow by
adding layers.
Carbohydrate and lipid metabolism
Starch synthesis
Carbohydrate and lipid metabolism
Starch degradation
Carbohydrate and lipid metabolism
Pentose phosphate pathway – oxidative reactions
Carbohydrate and lipid metabolism
Glycolysis, the pentose
phosphate pathway, and
various biosynthetic
pathways are
interconnected in plants
Pentose phosphate pathway – reversible reactions
Carbohydrate and lipid metabolism
Carbohydrate and lipid metabolism
Functions:
• ATP production
• Supply of
reducing power
• Funneling carbon
for oxidative
phosphorylation
• Production of
biosynthetic
precursors
Bypass reactions give
plants metabolic
flexibility
Glycolysis
Carbohydrate and lipid metabolism
Respiration
Carbohydrate and lipid metabolism
Lipids
Carbohydrate and lipid metabolism
Lipid functions
Carbohydrate and lipid metabolism
The central role of acetyl-CoA in metabolism
Carbohydrate and lipid metabolism
Fatty acid synthesis
Carbohydrate and lipid metabolism
Fatty acid synthesis
Carbohydrate and lipid metabolism
Membrane lipids
Carbohydrate and lipid metabolism
Structural lipids
Carbohydrate and lipid metabolism
Cutin structure
Storage lipids
Carbohydrate and lipid metabolism
Storage lipid mobilization
Carbohydrate and lipid metabolism
Genetic engineering of lipids
Carbohydrate and lipid metabolism