Several species of bacteria and archaea live in hot springs...

Several species of bacteria and archaea live in hot springs and deep-sea thermal vents where the water temperature exceeds 90°C (194°F). Which of the following evolutionary adaptations would you expect to find in the cell membranes of these thermophilic organisms? a. a high percentage of cholesterol b. a high percentage of unsaturated fatty acids c. a high percentage of carbohydrates on membrane lipids d. a high percentage of very long-chain saturated fatty acids

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Transcript

00:01 Hey everybody.

00:01 Today we're talking about bacteria that can handle some very severe temperature ranges.

00:30 And it's also archaea.

00:42 And i know that the numbers make it look super complicated.

00:51 That's why i'm rewording it.

00:52 So some bacteria and archaea can survive in really hot places.

01:03 Under water, i'm actually looking.

01:10 Which evolutionally, evolutionary.

01:27 Adaptations would you expect to find in these organisms cell membranes? okay, i know that this already took up a bunch of rooms, and i know that's really just not the best handwriting we've ever done, is it? but we're going to be okay.

02:20 So some bacteria and archaea can survive in really hot places underwater.

02:24 That is important.

02:25 That's why i added it.

02:26 Which of these evolutionary adaptations would you expect? to find in these organisms cell membranes.

02:31 So the cell membranes, bacteria, and archaea, it's hot, it's underwater, and it's an adaptation.

02:40 So we're picking the best one.

03:00 Oki -dokey.

03:20 So i'm going to write here, hot, underwater cell membrane.

03:29 That's a specific part we're talking about...