Credit: FRANCIS LEROY & GUILLAUME WILMOTTE, BIOCOSMOS/SCIENCE PHOTO LIBRARY

Caption: Collecting oxygen from pondweed. Animation of an experiment to show that oxygen is a byproduct of photosynthesis. Photosynthesis is the process by which most plants convert sunlight (coming from left) into chemical energy. It occurs in organelles called chloroplasts. Photosynthesis requires water and carbon dioxide. Oxygen is a by-product of the process and can be seen here collecting in the top of the test tube. When sufficient gas is collected, the test tube is removed and a glowing splint inserted in it. In the presence of oxygen the glowing splint will burst into flame.

Release details: Model release not required. Property release not required.

Keywords: animated, animation, aquatic plant, biochemical, biochemistry, biological, biology, black background, botanical, botany, energy, experiment, flora, nature, no-one, nobody, oxygen, photoautotroph, photosynthesis, photosynthesising, photosynthetic, pondweed, school science, science education, test

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Collecting oxygen from pondweed

K004/3303 Rights Managed

Downloadable master

Duration: 00:00:15.08

Frame size: 1920x1080

Frame rate: 25

Audio: No

Format: QuickTime, Photo JPEG 100%, progressive scan, square pixels

File size: 63.7M

Original

Capture format: QuickTime Animation

Codec: H.264

Please contact Science Photo Library if you require the original, or other formats.

 

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