'Rubisco' diaporamas de présentation

Plant Stress

Plant Stress Friday, Feb 22: presenting an abiotic plant stressor, what is known about it, and how it might affect plants in ~ 10 minute presentation. Light-independent (dark) reactions occur in the stroma of the chloroplast (pH 8) Consumes ATP & NADPH from light reactions

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Carbon metabolism

Carbon metabolism. Rubisco. Carboxylation. Glycerolaldehyde 3-phosphate. 3-phosphoglycerate. Rubisco. C 3 photosynthesis: Rubisco capacity - at or below normal ambient [CO 2 ] RuBP regeneration - at high [CO 2 ]. Regeneration of RuBP.

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Plant defense responses Hypersensitive response Systemic acquired resistance Innate immunity

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Energy Harvesting Pathways

Energy Harvesting Pathways. Photosynthesis. photosynthesis. reverses the oxidation of glycolysis/respiration C 6 H 12 O 6 +6 O 2 => 6 CO 2 +6 H 2 O + energy energy +6 CO 2 +12 H 2 O =>6 O 2 +C 6 H 12 O 6 +6 H 2 O. photosynthesis. reverses the oxidation of glycolysis/respiration

670 views • 51 slides

Biochemistry

Biochemistry. Lecture 15. Photosynthesis. Chemiosmotic Gradient. Endosymbiotic Theory. Photosynthesis. Assimilation of CO 2 by Plants. CO 2 Assimilation Occurs in Plastids. Organelles found in plants and algae Enclosed by a double membrane Have their own small genome

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Adaptations to Photosynthesis: C4 and CAM Plants

Adaptations to Photosynthesis: C4 and CAM Plants. Inefficiency of RubisCO Ribulose-1,5-bisphosphate carboxylase oxygenase. RubisCO has 2 catalytic properties In C 3 plants rubisCO catalyzes carbon fixation: CO 2 + RuBP ? 2 3-PGA

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Amaranth Flaveria

C 4 dicots. Amaranth Flaveria. Ribulose 1,5-Bisphosphate Carboxylase (Rubisco). Reactions:. CO 2 + H 2 O. RuBP (5C). 2 X 3-P-Glycerate (3C) + 2 H+. Rubisco. O 2 + H 2 O. 1 X 3-P-Glycerate (3C) + 2H+ + 1 X 2-P-Glycolate (2C). RuBP (5C). Rubisco.

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C4 has two features that are advantages in warm, dry environments.

C4 has two features that are advantages in warm, dry environments. Suppression of photorespiration (more C gain) 2. Lower stomatal conductance (less water loss) C4 plants can achieve high photosynthetic rates at lower stomatal conductance than C3 plants. How?. C4. C3. Photo- synthesis.

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PHOTORESPIRATION

O 2. O 2. O 2. O 2. PHOTORESPIRATION. Definition 1:. O 2. The aberrant use of oxygen by chloroplasts. Definition 2:. O 2. An interference with carboxylation caused by the deviant interaction of RUBISCO with oxygen. A process that leads to only one 3PGA being

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Figure 14.26

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PHOTORESPIRATION

O 2. O 2. O 2. O 2. PHOTORESPIRATION. Definition 1:. O 2. The aberrant use of oxygen by chloroplasts. Definition 2:. O 2. An interference with carboxylation caused by the deviant interaction of RUBISCO with oxygen. A process that leads to only one 3PGA being

305 views • 14 slides

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Water regulation in plants

Water regulation in plants. Water lost by transpiration through stomata. Conflicting requirements in plants . But water needed for metabolic activities and to maintain water balance in cells. If plants prevent water loss by closing guard cells then no CO 2 can enter for photosynthesis.

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C4 Photosynthesis - Mechanism

C4 Photosynthesis - Mechanism. Undergraduate Level Notes. Overview. Spatial separation of initial fixation of CO 2 into oxaloacetate by PEPC ( phosphoenolpyruvate carboxylase ) and subsequent 4C acids .

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Contrasting C3, C4 and CAM Photosynthesis - overview

Contrasting C3, C4 and CAM Photosynthesis - overview. Undergraduate level notes. Carbon Fixation. You may have gathered by now that the fundamental difference between C3 and the higher plant CCMs C4 and CAM, is in the initial fixation step .

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Outer membrane of chloroplast

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