Indigenous populations of Southern Africa have traditionally eaten a spiny succulent plant called Hoodia gordonii to supress appetite when making long hunting trips across the Kalahari Desert. Weight-loss researchers in the US have marketed the active ingredient in this endangered plant , a steroid, as a spray gel which they claim is directly absorbed through the skin. Using what you know about how molecules move across phospholipid bilayers, do you think this drug can be absorbed this way? O Yes, small hydrophilic molecules can pass through the phospholipid bilayer. O No, hydrophobic molecules get caught in the hydrophobic center of the phospholipid bilayer. O Yes, small hydrophobic molecules pass through the phospholipid bilayer. O No, only natural molecules normally found in the body can pass through the phopholipid bilayer.
Indigenous populations of Southern Africa have traditionally eaten a spiny succulent plant called Hoodia gordonii to supress appetite when making long hunting trips across the Kalahari Desert. Weight-loss researchers in the US have marketed the active ingredient in this endangered plant , a steroid, as a spray gel which they claim is directly absorbed through the skin. Using what you know about how molecules move across phospholipid bilayers, do you think this drug can be absorbed this way? O Yes, small hydrophilic molecules can pass through the phospholipid bilayer. O No, hydrophobic molecules get caught in the hydrophobic center of the phospholipid bilayer. O Yes, small hydrophobic molecules pass through the phospholipid bilayer. O No, only natural molecules normally found in the body can pass through the phopholipid bilayer.
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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Nucleotides
It is an organic molecule made up of three basic components- a nitrogenous base, phosphate,and pentose sugar. The nucleotides are important for metabolic reactions andthe formation of DNA (deoxyribonucleic acid) and RNA (ribonucleic acid).
Nucleic Acids
Nucleic acids are essential biomolecules present in prokaryotic and eukaryotic cells and viruses. They carry the genetic information for the synthesis of proteins and cellular replication. The nucleic acids are of two types: deoxyribonucleic acid (DNA) and ribonucleic acid (RNA). The structure of all proteins and ultimately every biomolecule and cellular component is a product of information encoded in the sequence of nucleic acids. Parts of a DNA molecule containing the information needed to synthesize a protein or an RNA are genes. Nucleic acids can store and transmit genetic information from one generation to the next, fundamental to any life form.
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Transcribed Image Text:Indigenous populations of Southern Africa have traditionally eaten a spiny succulent plant called Hoodia gordonii to supress
appetite when making long hunting trips across the Kalahari Desert. Weight-loss researchers in the US have marketed the
active ingredient in this endangered plant , a steroid, as a spray gel which they claim is directly absorbed through the skin.
Using what you know about how molecules move across phospholipid bilayers, do you think this drug can be absorbed this
way?
O Yes, small hydrophilic molecules can pass through the phospholipid bilayer.
O No, hydrophobic molecules get caught in the hydrophobic center of the phospholipid bilayer.
O Yes, small hydrophobic molecules pass through the phospholipid bilayer.
O No, only natural molecules normally found in the body can pass through the phopholipid bilayer.
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