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What is unique about porins, compared with most other integral membrane proteins? a. They have a B-barrel motif, which allows them to make water tunnels in membranes. b. Their transmembrane domains are composed largely of a helices. c. Their transmembrane domains contain a high percentage of hydrophilic amino acids. d. They have a single transmembrane domain, which loosely anchors them into the membrane.

What is unique about porins, compared with most other integral membrane proteins? a. They have a B-barrel motif, which allows them to make water tunnels in membranes. b. Their transmembrane domains are composed largely of a helices. c. Their transmembrane domains contain a high percentage of hydrophilic amino acids. d. They have a single transmembrane domain, which loosely anchors them into the membrane.

Human Anatomy & Physiology (11th Edition)
Human Anatomy & Physiology (11th Edition)
11th Edition
ISBN:9780134580999
Author:Elaine N. Marieb, Katja N. Hoehn
Publisher:Elaine N. Marieb, Katja N. Hoehn
Chapter1: The Human Body: An Orientation
Section: Chapter Questions
Problem 1RQ: The correct sequence of levels forming the structural hierarchy is A. (a) organ, organ system,...
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5. What is unique about porins, compared with most other integral membrane proteins? a. They have a B-barrel motif, which allows them to make water tunnels in membranes. b. Their transmembrane domains are composed largely of a helices. c. Their transmembrane domains contain a high percentage of hydrophilic amino acids. d. They have a single transmembrane domain, which loosely anchors them into the membrane.
Transcribed Image Text:5. What is unique about porins, compared with most other integral membrane proteins? a. They have a B-barrel motif, which allows them to make water tunnels in membranes. b. Their transmembrane domains are composed largely of a helices. c. Their transmembrane domains contain a high percentage of hydrophilic amino acids. d. They have a single transmembrane domain, which loosely anchors them into the membrane.
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