IB Biology Topic C1.3.19 Interdependence of the Light-dependent and Light-independent Reactions Revision Notes (HL)

IB Biology Topic C1.3.19 Interdependence of the Light-dependent and Light-independent Reactions Revision Notes (HL) | RevisionDojo

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Each Stage of Photosynthesis Supplies What the Other Needs to Keep Going

Photosynthesis has two stages that depend on each other.
1. The light-dependent reactions in the thylakoids make ATP and reduced NADP.
2. The light-independent reactions (Calvin cycle) in the stroma use ATP and reduced NADP to fix carbon dioxide.
Neither stage can run for long without the products of the other.

Analogy

The light-dependent reactions are like a power plant generating electricity, which is ATP and reduced NADP.
The Calvin cycle is like a factory that runs on that electricity.
Cut the power and the factory soon stops.

The Light Reactions Supply ATP and Reduced NADP to the Calvin Cycle

The Calvin cycle needs ATP for energy and reduced NADP to supply hydrogen and electrons.
Without these, the cycle cannot reduce its intermediates and glucose production stops.

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Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris.
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Each Stage of Photosynthesis Supplies What the Other Needs to Keep Going

Photosynthesis has two stages that depend on each other.
1. The light-dependent reactions in the thylakoids make ATP and reduced NADP.
2. The light-independent reactions (Calvin cycle) in the stroma use ATP and reduced NADP to fix carbon dioxide.
Neither stage can run for long without the products of the other.

Analogy

The light-dependent reactions are like a power plant generating electricity, which is ATP and reduced NADP.
The Calvin cycle is like a factory that runs on that electricity.
Cut the power and the factory soon stops.

The Light Reactions Supply ATP and Reduced NADP to the Calvin Cycle

The Calvin cycle needs ATP for energy and reduced NADP to supply hydrogen and electrons.
Without these, the cycle cannot reduce its intermediates and glucose production stops.

Definition

Paywall

(on a website) an arrangement whereby access is restricted to users who have paid to subscribe to the site.

anim nostrud sit dolore minim proident quis fugiat velit et eiusmod nulla quis nulla mollit dolor sunt culpa aliqua

Duis aute irure dolor in reprehenderit

Note

Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam quis nostrud exercitation.

Excepteur sint occaecat cupidatat non proident

Tip

Lorem ipsum dolor sit amet, consectetur adipiscing elit.
Sed do eiusmod tempor incididunt ut labore et dolore magna aliqua.
Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris.
Duis aute irure dolor in reprehenderit in voluptate velit esse cillum.

A - Unity and Diversity9 subtopics

B - Form and Function10 subtopics

C - Interaction and Interdependence9 subtopics

D - Continuity and Change12 subtopics

IB Biology Topic C1.3.19: Interdependence of the Light-dependent and Light-independent Reactions Notes

A - Unity and Diversity9 subtopics

B - Form and Function10 subtopics

C - Interaction and Interdependence9 subtopics

D - Continuity and Change12 subtopics

Each Stage of Photosynthesis Supplies What the Other Needs to Keep Going

The Light Reactions Supply ATP and Reduced NADP to the Calvin Cycle

anim nostrud sit dolore minim proident quis fugiat velit et eiusmod nulla quis nulla mollit dolor sunt culpa aliqua

Duis aute irure dolor in reprehenderit

Excepteur sint occaecat cupidatat non proident

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Each Stage of Photosynthesis Supplies What the Other Needs to Keep Going

The Light Reactions Supply ATP and Reduced NADP to the Calvin Cycle

anim nostrud sit dolore minim proident quis fugiat velit et eiusmod nulla quis nulla mollit dolor sunt culpa aliqua

Duis aute irure dolor in reprehenderit

Excepteur sint occaecat cupidatat non proident

Unlock the rest of this chapter with a free account