Viruses are made up of the same biomolecules as cellular organisms (DNA, RNA, proteins, lipids, etc.). They infect cells and replicate themselves using resources from the host cells. Scientists discovered a previously unknown strain of virus in the tropical Pacific Ocean and it can infect higher-order eukaryotes. Initial analysis revealed that the virus is mainly composed of nucleic acids, proteins, and lipids. Chemical analysis after complete hydrolysis revealed the following building blocks (by weight): Chemical components Nucleosides Amino acids Lipids, phosphates, and carbohydrates Percentage by weight 20 30 50 Analysis of percentages of nucleosides yielded the following results (by molar ratio): Nucleosides A G T C U Percentage by mole 19 29 19 29 4 Researchers determined that the lipids found in the virus form a bilayer membrane surrounding the virus, and are obtained from the membrane of the host cell during virus maturation and exit from host cell. Further research revealed that this virus specifically infects a species of fish in the tropical sea. Interestingly, the virus is also capable of infecting a very similar species of fish that is found in the Arctic Ocean (an evolutionary "cousin” of the tropical species). If a sample of virus is isolated from the arctic species of fish, what is most likely true about the percentage of unsaturated lipids in the virus sample compared to a sample isolated from its tropical counterpart? The virus contains a lower percentage of unsaturated lipids. The virus contains a higher percentage of unsaturated lipids. The virus contains the same percentage of unsaturated lipids. The virus does not contain any lipids because all the lipids are frozen in place.

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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Viruses are made up of the same biomolecules as cellular organisms (DNA, RNA, proteins, lipids, etc.). They infect cells and replicate themselves using resources from the host cells. Scientists discovered a previously unknown strain of virus in the tropical Pacific Ocean and it can infect higher-order eukaryotes. Initial analysis revealed that the virus is mainly composed of nucleic acids, proteins, and lipids. Chemical analysis after complete hydrolysis revealed the following building blocks (by weight):

Chemical components	Nucleosides	Amino acids	Lipids, phosphates, and carbohydrates
Percentage by weight	20	30	50

Analysis of percentages of nucleosides yielded the following results (by molar ratio):

Nucleosides	A	G	T	C	U
Percentage by mole	19	29	19	29	4

Researchers determined that the lipids found in the virus form a bilayer membrane surrounding the virus, and are obtained from the membrane of the host cell during virus maturation and exit from host cell.

Further research revealed that this virus specifically infects a species of fish in the tropical sea. Interestingly, the virus is also capable of infecting a very similar species of fish that is found in the Arctic Ocean (an evolutionary "cousin” of the tropical species).

If a sample of virus is isolated from the arctic species of fish, what is most likely true about the percentage of unsaturated lipids in the virus sample compared to a sample isolated from its tropical counterpart?

The virus contains a lower percentage of unsaturated lipids.

The virus contains a higher percentage of unsaturated lipids.

The virus contains the same percentage of unsaturated lipids.

The virus does not contain any lipids because all the lipids are frozen in place.

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