Biology 1 Lecture Dec 3 - Photosynthesis Part 5 + Plants and Herbicides Case Study

Giving electrons to ETC for proton motive force and gradient, producing O2 waste

What is the main role of photosystem 2?

Donate electrons to produce NADPH, capture light energy and continue ETC

What is the main role of photosystem 1?

Linear redox reaction

Describe the type of reaction taking place when electrons are donated from H2O to NADP+

Input: 3RuBP, 3CO2 Output: 6 3PGA Waste intermediate 6 carbon, Rubisco

Simplified input and output for fixation. List waste.

Input: 6 3PGA, 6ATP Output: 6 NADPH Waste 6 ADP, 6H+, 6 phosphate

Simplified input and output for reduction. List waste.

Input: 5G3P, 3 ATP Output: 3 RuBP Waste 3 ADP, 2 phosphate

Simplified input and output for RuBP regeneration. List waste.

Plants, animals, bacteria

Which organisms carry out respiration and photosynthesis? Hint: same group of organisms

Plant cells and cyanobacteria

Which cells can do photosynthesis?

A series of complex metabolic processes convert the pounds into water and carbon dioxide released in urine, sweat, and exhalation

When someone loses 15 lbs, where did the weight (mass) go?

Light absorption by chlorophyll, electron donation from water

Does photosystem 2 depend on any other step? How?

Light absorption and electron flow from ETC

Does photosystem 1 depend on any other step? How?

Proton motive force by ETC

Does ATP synthase depend on any other step? How?

ATP and NADPH production, CO2 from air

Does Calvin depend on any other step? How?

Oxygen production decrease

What would happen if a herbicide disrupted photosystem 2?

NADPH production decreases

What would happen if a herbicide disrupted photosystem 1?

ATP production decrease

What would happen if a herbicide disrupted ATP synthase?

G3P production decrease

What would happen if a herbicide disturbed calvin cycle?