IB Biology Topic C1.3.3 Oxygen as a By-product of Photosynthesis Revision Notes (SL/HL)

IB Biology Topic C1.3.3 Oxygen as a By-product of Photosynthesis Revision Notes (SL/HL) | RevisionDojo

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The Oxygen You Breathe Comes from Water Split During Photosynthesis

Plants, algae, and cyanobacteria carry out photosynthesis, which converts light energy into chemical energy in glucose.
As this happens, oxygen is released as a by-product.
Almost all of the oxygen in Earth's atmosphere was produced this way.

Carbon dioxide + water → glucose + oxygen

The Oxygen Comes from Water, Not Carbon Dioxide

The oxygen released during photosynthesis comes from water molecules, not from carbon dioxide.
Water is split using light energy in a process called photolysis, which means "splitting by light."

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Lorem ipsum dolor sit amet, consectetur adipiscing elit.
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Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris.
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The Oxygen You Breathe Comes from Water Split During Photosynthesis

Plants, algae, and cyanobacteria carry out photosynthesis, which converts light energy into chemical energy in glucose.
As this happens, oxygen is released as a by-product.
Almost all of the oxygen in Earth's atmosphere was produced this way.

Carbon dioxide + water → glucose + oxygen

The Oxygen Comes from Water, Not Carbon Dioxide

The oxygen released during photosynthesis comes from water molecules, not from carbon dioxide.
Water is split using light energy in a process called photolysis, which means "splitting by light."

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 C1.3.3: Oxygen as a By-product of Photosynthesis Notes

A - Unity and Diversity9 subtopics

B - Form and Function10 subtopics

C - Interaction and Interdependence9 subtopics

D - Continuity and Change12 subtopics

The Oxygen You Breathe Comes from Water Split During Photosynthesis

The Oxygen Comes from Water, Not Carbon Dioxide

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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The Oxygen You Breathe Comes from Water Split During Photosynthesis

The Oxygen Comes from Water, Not Carbon Dioxide

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