The Purple Bacteria That Are Afraid of Oxygen

The Purple Bacteria That Are Afraid of Oxygen

Assessment

Interactive Video

Biology, Chemistry, Science

University

Hard

Created by

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FREE Resource

The video explores the fascinating world of microscopy and the discovery of a colorful ciliate and purple sulfur bacteria. It delves into the unique photosynthesis process of these bacteria, contrasting it with the more common oxygenic photosynthesis. The video highlights the ecological role of purple sulfur bacteria in consuming hydrogen sulfide and their historical presence in ancient oceans. Through this journey, viewers gain insights into the unseen microbial world and its adaptations.

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3 questions

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1.

OPEN ENDED QUESTION

3 mins • 1 pt

What adaptations do purple sulfur bacteria have to survive in oxygen-poor environments?

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2.

OPEN ENDED QUESTION

3 mins • 1 pt

How do purple sulfur bacteria contribute to the ecosystem despite their contrarian nature?

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3.

OPEN ENDED QUESTION

3 mins • 1 pt

What evidence suggests that purple sulfur bacteria existed in ancient oceans?

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