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Questions and Answers
What is the first step in HIV infecting a host cell?
What is the first step in HIV infecting a host cell?
- Viral DNA's transcription into viral RNA
- Fusion of HIV with the plasma membrane
- Conversion of viral RNA into DNA (correct)
- Assemblage of new viral particles
Which of the following is assembled from RNA, protein, and reverse transcriptase?
Which of the following is assembled from RNA, protein, and reverse transcriptase?
- Viral DNA
- New viral particles (correct)
- gp120
- Plasma membrane
What does HIV fuse with on the host cell?
What does HIV fuse with on the host cell?
- Ribosomes
- Plasma membrane (correct)
- Golgi apparatus
- Nucleus
What is released into the cell during HIV infection?
What is released into the cell during HIV infection?
What does gp120 of HIV bind to on a T-lymphocyte?
What does gp120 of HIV bind to on a T-lymphocyte?
What is produced through viral DNA's transcription?
What is produced through viral DNA's transcription?
What is the building of gp 120 of HIV associated with?
What is the building of gp 120 of HIV associated with?
What is produced, along with protein, in the second step of HIV infection?
What is produced, along with protein, in the second step of HIV infection?
What is required along with RNA and protein for assemblage of new viral particles?
What is required along with RNA and protein for assemblage of new viral particles?
What processes does HIV utilize to create viral proteins?
What processes does HIV utilize to create viral proteins?
Flashcards
What is the first step of HIV infecting a host cell?
What is the first step of HIV infecting a host cell?
HIV attaches to CD4 receptors on T-lymphocytes via gp120.
What happens after HIV attaches to the host cell?
What happens after HIV attaches to the host cell?
The virus fuses with the host cell membrane, releasing its contents inside.
What is the role of reverse transcriptase in HIV infection?
What is the role of reverse transcriptase in HIV infection?
HIV RNA is converted into DNA using reverse transcriptase, and is then incorporated into the cell's DNA.
What happens after viral DNA integrates into the host cell's DNA?
What happens after viral DNA integrates into the host cell's DNA?
Viral DNA is transcribed into RNA, which is then used to produce viral proteins.
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What components are needed to assemble new viral particles?
What components are needed to assemble new viral particles?
New viral particles are assembled from viral RNA, proteins, and reverse transcriptase.
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How does HIV exit the host cell?
How does HIV exit the host cell?
Newly formed viruses bud from the cell, taking some of the cell membrane with them.
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- The steps involved when HIV infects its host cell in the human body are:
Steps of HIV Infection
- gp120 of HIV binds to CD4 of a T-lymphocyte
- HIV fuses with the plasma membrane of the host cell
- Viral RNA converts to DNA, which incorporates into the host cell's DNA
- Viral DNA transcribes into viral RNA to produce proteins
- New viral particles assemble from RNA, protein, and reverse transcriptase
- RNA and reverse transcriptase are released into the cell
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