Figure 21.5 Which of the following statements about virus structure is true? All viruses are encased in a viral membrane The capsomere is made up of small protein subunits called capsids. DNA is the genetic material in all viruses. Glycoproteins help the virus attach to the host cell.

Question

Want to see more full solutions like this?

Answer 1

Textbook Question

Chapter 21, Problem 1VCQ

Figure 21.5 Which of the following statements about virus structure is true?

All viruses are encased in a viral membrane
The capsomere is made up of small protein subunits called capsids.

DNA is the genetic material in all viruses.

Glycoproteins help the virus attach to the host cell.

Chapter 21, Problem 1VCQ, Figure 21.5 Which of the following statements about virus structure is true? All viruses are encased

Expert Solution & Answer

Summary Introduction

Introduction:

Viruses have diversity in terms of the structure, the method of replication, host and target cells. Viruses are non-cellular and parasitic and do not have any internal organelles, metabolic process or plasma membrane. The virion consists of a nucleic acid core of either DNA or RNA, an outer coating of protein, or sometimes may have an outer membrane which is made up of phospholipid membrane which is derived from the host cell and proteins.

Answer to Problem 1VCQ

Correct answer:

The correct answer is option (d) Glycoproteins help the virus attach to the host cell.

Explanation of Solution

Explanation/justification for the correct answer:

Option (d) Glycoproteins help the virus attach to the host cell. All the virions have the nucleic acid genome which is covered with an outer protein protective layer is termed as capsid. Capsomere is small protein subunits that make up the capsid. The capsid of some of the viruses has a surrounding outer structure which is the viral envelope.

All the viruses contain some kind of the glycoprotein for attachment to the host cell molecules which are the viral receptors. These cell surface molecules are exploited by viruses for recognition and infection to particular types of cell. So, the correct answer is option (d).

Explanation for the incorrect answer:

Option (a) All viruses are encased in a viral membrane. Viruses may or may not have a viral membrane. So, this is an incorrect option.

Option (b) The capsomere is made up of small protein subunits called capsids Capsomere are small protein subunits that make up the capsid. So, this is an incorrect answer.

Option (c) DNA is the genetic material in all viruses. The virion consists of a nucleic acid core of either DNA or RNA. So, this is an incorrect answer.

Conclusion

All the viruses contain some kind of the glycoprotein for attachment to the host cell molecules which are the viral receptors. These cell surface molecules are exploited by viruses for recognition and infection to particular types of cell. Hence, the correct answer is option (d) Glycoproteins help the virus attach to the host cell.

Want to see more full solutions like this?

Subscribe now to access step-by-step solutions to millions of textbook problems written by subject matter experts!

Students have asked these similar questions

In the virus image below, what is the likely function of the projections seen on the virus particle? They contain the virion's genetic information. They prevent the virion from being recognized by the host. They contain the enzymes that replicate the virus particle. They facilitate attachment of the virion to the host cell.

Select all the following statements that are TRUE regarding viruses: □ All viruses are potentially dangerous to humans because any virus can infect any host. □ Viruses are fastidious pathogens that require complex growth media. □ Viruses are noncellular particles that take over the metabolism of a cell to generate more virus particles. □ Viruses are genomes made of RNA and DNA that lack many protein. □ Viruses can infect all other known life forms on earth, from Archaea to humans.

Which one of the following is not true for virus, obligate intracellular parasites? Viruses cannot generate energy outside of cells Viruses cannot synthesize proteins outside of cells Enveloped viruses require host cell membrane to obtain their envelopes Viruses must degrade host cell DNA in order to obtain nucleotides

Answer 2

Textbook Question

Chapter 21, Problem 1VCQ

Figure 21.5 Which of the following statements about virus structure is true?

All viruses are encased in a viral membrane
The capsomere is made up of small protein subunits called capsids.

DNA is the genetic material in all viruses.

Glycoproteins help the virus attach to the host cell.

Chapter 21, Problem 1VCQ, Figure 21.5 Which of the following statements about virus structure is true? All viruses are encased

Expert Solution & Answer

Summary Introduction

Introduction:

Viruses have diversity in terms of the structure, the method of replication, host and target cells. Viruses are non-cellular and parasitic and do not have any internal organelles, metabolic process or plasma membrane. The virion consists of a nucleic acid core of either DNA or RNA, an outer coating of protein, or sometimes may have an outer membrane which is made up of phospholipid membrane which is derived from the host cell and proteins.

Answer to Problem 1VCQ

Correct answer:

The correct answer is option (d) Glycoproteins help the virus attach to the host cell.

Explanation of Solution

Explanation/justification for the correct answer:

Option (d) Glycoproteins help the virus attach to the host cell. All the virions have the nucleic acid genome which is covered with an outer protein protective layer is termed as capsid. Capsomere is small protein subunits that make up the capsid. The capsid of some of the viruses has a surrounding outer structure which is the viral envelope.

All the viruses contain some kind of the glycoprotein for attachment to the host cell molecules which are the viral receptors. These cell surface molecules are exploited by viruses for recognition and infection to particular types of cell. So, the correct answer is option (d).

Explanation for the incorrect answer:

Option (a) All viruses are encased in a viral membrane. Viruses may or may not have a viral membrane. So, this is an incorrect option.

Option (b) The capsomere is made up of small protein subunits called capsids Capsomere are small protein subunits that make up the capsid. So, this is an incorrect answer.

Option (c) DNA is the genetic material in all viruses. The virion consists of a nucleic acid core of either DNA or RNA. So, this is an incorrect answer.

Conclusion

All the viruses contain some kind of the glycoprotein for attachment to the host cell molecules which are the viral receptors. These cell surface molecules are exploited by viruses for recognition and infection to particular types of cell. Hence, the correct answer is option (d) Glycoproteins help the virus attach to the host cell.

Want to see more full solutions like this?

Subscribe now to access step-by-step solutions to millions of textbook problems written by subject matter experts!

Answer 3

Textbook Question

Chapter 21, Problem 1VCQ

Figure 21.5 Which of the following statements about virus structure is true?

All viruses are encased in a viral membrane
The capsomere is made up of small protein subunits called capsids.

DNA is the genetic material in all viruses.

Glycoproteins help the virus attach to the host cell.

Chapter 21, Problem 1VCQ, Figure 21.5 Which of the following statements about virus structure is true? All viruses are encased

Expert Solution & Answer

Summary Introduction

Introduction:

Viruses have diversity in terms of the structure, the method of replication, host and target cells. Viruses are non-cellular and parasitic and do not have any internal organelles, metabolic process or plasma membrane. The virion consists of a nucleic acid core of either DNA or RNA, an outer coating of protein, or sometimes may have an outer membrane which is made up of phospholipid membrane which is derived from the host cell and proteins.

Answer to Problem 1VCQ

Correct answer:

The correct answer is option (d) Glycoproteins help the virus attach to the host cell.

Explanation of Solution

Explanation/justification for the correct answer:

Option (d) Glycoproteins help the virus attach to the host cell. All the virions have the nucleic acid genome which is covered with an outer protein protective layer is termed as capsid. Capsomere is small protein subunits that make up the capsid. The capsid of some of the viruses has a surrounding outer structure which is the viral envelope.

All the viruses contain some kind of the glycoprotein for attachment to the host cell molecules which are the viral receptors. These cell surface molecules are exploited by viruses for recognition and infection to particular types of cell. So, the correct answer is option (d).

Explanation for the incorrect answer:

Option (a) All viruses are encased in a viral membrane. Viruses may or may not have a viral membrane. So, this is an incorrect option.

Option (b) The capsomere is made up of small protein subunits called capsids Capsomere are small protein subunits that make up the capsid. So, this is an incorrect answer.

Option (c) DNA is the genetic material in all viruses. The virion consists of a nucleic acid core of either DNA or RNA. So, this is an incorrect answer.

Conclusion

All the viruses contain some kind of the glycoprotein for attachment to the host cell molecules which are the viral receptors. These cell surface molecules are exploited by viruses for recognition and infection to particular types of cell. Hence, the correct answer is option (d) Glycoproteins help the virus attach to the host cell.

Want to see more full solutions like this?

Subscribe now to access step-by-step solutions to millions of textbook problems written by subject matter experts!

Answer 4

Textbook Question

Chapter 21, Problem 1VCQ

Figure 21.5 Which of the following statements about virus structure is true?

All viruses are encased in a viral membrane
The capsomere is made up of small protein subunits called capsids.

DNA is the genetic material in all viruses.

Glycoproteins help the virus attach to the host cell.

Chapter 21, Problem 1VCQ, Figure 21.5 Which of the following statements about virus structure is true? All viruses are encased

Expert Solution & Answer

Summary Introduction

Introduction:

Viruses have diversity in terms of the structure, the method of replication, host and target cells. Viruses are non-cellular and parasitic and do not have any internal organelles, metabolic process or plasma membrane. The virion consists of a nucleic acid core of either DNA or RNA, an outer coating of protein, or sometimes may have an outer membrane which is made up of phospholipid membrane which is derived from the host cell and proteins.

Answer to Problem 1VCQ

Correct answer:

The correct answer is option (d) Glycoproteins help the virus attach to the host cell.

Explanation of Solution

Explanation/justification for the correct answer:

Option (d) Glycoproteins help the virus attach to the host cell. All the virions have the nucleic acid genome which is covered with an outer protein protective layer is termed as capsid. Capsomere is small protein subunits that make up the capsid. The capsid of some of the viruses has a surrounding outer structure which is the viral envelope.

All the viruses contain some kind of the glycoprotein for attachment to the host cell molecules which are the viral receptors. These cell surface molecules are exploited by viruses for recognition and infection to particular types of cell. So, the correct answer is option (d).

Explanation for the incorrect answer:

Option (a) All viruses are encased in a viral membrane. Viruses may or may not have a viral membrane. So, this is an incorrect option.

Option (b) The capsomere is made up of small protein subunits called capsids Capsomere are small protein subunits that make up the capsid. So, this is an incorrect answer.

Option (c) DNA is the genetic material in all viruses. The virion consists of a nucleic acid core of either DNA or RNA. So, this is an incorrect answer.

Conclusion

All the viruses contain some kind of the glycoprotein for attachment to the host cell molecules which are the viral receptors. These cell surface molecules are exploited by viruses for recognition and infection to particular types of cell. Hence, the correct answer is option (d) Glycoproteins help the virus attach to the host cell.

Want to see more full solutions like this?

Subscribe now to access step-by-step solutions to millions of textbook problems written by subject matter experts!

Answer 5

Textbook Question

Answer 6

Textbook Question

Answer 7

Expert Solution & Answer

Summary Introduction

Introduction:

Viruses have diversity in terms of the structure, the method of replication, host and target cells. Viruses are non-cellular and parasitic and do not have any internal organelles, metabolic process or plasma membrane. The virion consists of a nucleic acid core of either DNA or RNA, an outer coating of protein, or sometimes may have an outer membrane which is made up of phospholipid membrane which is derived from the host cell and proteins.

Answer to Problem 1VCQ

Correct answer:

The correct answer is option (d) Glycoproteins help the virus attach to the host cell.

Explanation of Solution

Explanation/justification for the correct answer:

Option (d) Glycoproteins help the virus attach to the host cell. All the virions have the nucleic acid genome which is covered with an outer protein protective layer is termed as capsid. Capsomere is small protein subunits that make up the capsid. The capsid of some of the viruses has a surrounding outer structure which is the viral envelope.

All the viruses contain some kind of the glycoprotein for attachment to the host cell molecules which are the viral receptors. These cell surface molecules are exploited by viruses for recognition and infection to particular types of cell. So, the correct answer is option (d).

Explanation for the incorrect answer:

Option (a) All viruses are encased in a viral membrane. Viruses may or may not have a viral membrane. So, this is an incorrect option.

Option (b) The capsomere is made up of small protein subunits called capsids Capsomere are small protein subunits that make up the capsid. So, this is an incorrect answer.

Option (c) DNA is the genetic material in all viruses. The virion consists of a nucleic acid core of either DNA or RNA. So, this is an incorrect answer.

Conclusion

All the viruses contain some kind of the glycoprotein for attachment to the host cell molecules which are the viral receptors. These cell surface molecules are exploited by viruses for recognition and infection to particular types of cell. Hence, the correct answer is option (d) Glycoproteins help the virus attach to the host cell.

Answer 8

Expert Solution & Answer

Summary Introduction

Introduction:

Viruses have diversity in terms of the structure, the method of replication, host and target cells. Viruses are non-cellular and parasitic and do not have any internal organelles, metabolic process or plasma membrane. The virion consists of a nucleic acid core of either DNA or RNA, an outer coating of protein, or sometimes may have an outer membrane which is made up of phospholipid membrane which is derived from the host cell and proteins.

Answer to Problem 1VCQ

Correct answer:

The correct answer is option (d) Glycoproteins help the virus attach to the host cell.

Explanation of Solution

Explanation/justification for the correct answer:

Option (d) Glycoproteins help the virus attach to the host cell. All the virions have the nucleic acid genome which is covered with an outer protein protective layer is termed as capsid. Capsomere is small protein subunits that make up the capsid. The capsid of some of the viruses has a surrounding outer structure which is the viral envelope.

All the viruses contain some kind of the glycoprotein for attachment to the host cell molecules which are the viral receptors. These cell surface molecules are exploited by viruses for recognition and infection to particular types of cell. So, the correct answer is option (d).

Explanation for the incorrect answer:

Option (a) All viruses are encased in a viral membrane. Viruses may or may not have a viral membrane. So, this is an incorrect option.

Option (b) The capsomere is made up of small protein subunits called capsids Capsomere are small protein subunits that make up the capsid. So, this is an incorrect answer.

Option (c) DNA is the genetic material in all viruses. The virion consists of a nucleic acid core of either DNA or RNA. So, this is an incorrect answer.

Conclusion

All the viruses contain some kind of the glycoprotein for attachment to the host cell molecules which are the viral receptors. These cell surface molecules are exploited by viruses for recognition and infection to particular types of cell. Hence, the correct answer is option (d) Glycoproteins help the virus attach to the host cell.

Answer 9

Expert Solution & Answer

Answer 10

Expert Solution & Answer

Answer 11

Summary Introduction

Introduction:

Viruses have diversity in terms of the structure, the method of replication, host and target cells. Viruses are non-cellular and parasitic and do not have any internal organelles, metabolic process or plasma membrane. The virion consists of a nucleic acid core of either DNA or RNA, an outer coating of protein, or sometimes may have an outer membrane which is made up of phospholipid membrane which is derived from the host cell and proteins.

Answer 12

Answer to Problem 1VCQ

Correct answer:

The correct answer is option (d) Glycoproteins help the virus attach to the host cell.

Answer 13

Explanation of Solution

Explanation/justification for the correct answer:

Option (d) Glycoproteins help the virus attach to the host cell. All the virions have the nucleic acid genome which is covered with an outer protein protective layer is termed as capsid. Capsomere is small protein subunits that make up the capsid. The capsid of some of the viruses has a surrounding outer structure which is the viral envelope.

All the viruses contain some kind of the glycoprotein for attachment to the host cell molecules which are the viral receptors. These cell surface molecules are exploited by viruses for recognition and infection to particular types of cell. So, the correct answer is option (d).

Explanation for the incorrect answer:

Option (a) All viruses are encased in a viral membrane. Viruses may or may not have a viral membrane. So, this is an incorrect option.

Option (b) The capsomere is made up of small protein subunits called capsids Capsomere are small protein subunits that make up the capsid. So, this is an incorrect answer.

Option (c) DNA is the genetic material in all viruses. The virion consists of a nucleic acid core of either DNA or RNA. So, this is an incorrect answer.

Answer 14

Conclusion

All the viruses contain some kind of the glycoprotein for attachment to the host cell molecules which are the viral receptors. These cell surface molecules are exploited by viruses for recognition and infection to particular types of cell. Hence, the correct answer is option (d) Glycoproteins help the virus attach to the host cell.

Answer 15

Ch. 21 - Figure 21.5 Which of the following statements...Ch. 21 - Figure 21.8 Influenza virus is packaged in a viral...Ch. 21 - Figure 21.10 Which of the following statements is...Ch. 21 - Which statement is true? A virion contains DNA and...Ch. 21 - The viral______play(s) a role in attaching a...Ch. 21 - Viruses. all have a round shape cannot have a long...Ch. 21 - The observation that the bacteria genus Chlamydia...Ch. 21 - A scientist discovers a new virus with a linear,...Ch. 21 - Which statement is not true of viral replication?...Ch. 21 - Which statement is true of viral replication? In...

Figure 21.5 Which of the following statements about virus structure is true? All viruses are encased in a viral membrane The capsomere is made up of small protein subunits called capsids. DNA is the genetic material in all viruses. Glycoproteins help the virus attach to the host cell.

Concept explainers

Videos

Answer to Problem 1VCQ

Explanation of Solution

Want to see more full solutions like this?

Chapter 21 Solutions

Additional Science Textbook Solutions