Biology Chapter: Viruses vs. Living Organisms
10 Questions
0 Views

Choose a study mode

Play Quiz
Study Flashcards
Spaced Repetition
Chat to Lesson

Podcast

Play an AI-generated podcast conversation about this lesson

Questions and Answers

What characteristic differentiates the structures of living organisms from those of viruses?

  • Presence of a cell wall
  • Presence of a nucleus (correct)
  • Complexity of DNA structure
  • Ability to produce energy

Which of the following statements is true regarding the phylogenic tree concerning the red pandas, giant pandas, and raccoons?

  • Raccoons are more closely related to giant pandas.
  • They have no similarities in tooth patterns to any other species.
  • Their similar tooth patterns are not shared with spectacled and sloth bears. (correct)
  • They share similar tooth patterns with all bears.

What structure uniquely defines viruses and is critical to their function?

  • RNA replication machinery
  • Mitochondria
  • Capsid (correct)
  • Endoplasmic reticulum

Why are viruses not classified as cells according to cell theory?

<p>They cannot engage in metabolism independently. (B)</p> Signup and view all the answers

Which cell organelle has a function similar to that of the viral envelope?

<p>Cell membrane (B)</p> Signup and view all the answers

What characteristic of a virus allows it to transfer integrated DNA to another organism?

<p>The ability to integrate its own DNA into the host DNA (D)</p> Signup and view all the answers

Which characteristic best supports the inclusion of bats and birds in separate branches of a cladogram?

<p>Bats and birds have many derived characteristics besides wings (B)</p> Signup and view all the answers

Which statement best describes the classification of infection agents X, Y, and Z?

<p>X and Z do not obtain and use energy (A)</p> Signup and view all the answers

Where should the characteristic of producing an amniotic egg be placed in a specific diagram?

<p>At position A (D)</p> Signup and view all the answers

What is the least supported statement regarding the endosymbiotic origin of chloroplasts in eukaryotic cells?

<p>Chloroplasts can be replaced using nuclear DNA if lost (D)</p> Signup and view all the answers

Flashcards

Phylogenetic Tree

A branching diagram showing the evolutionary relationships among various species.

Viruses unique structure

Capsid is a unique structure in a Virus.

Cell Theory vs. Viruses

Viruses are not considered cells because they don't reproduce independently. They hijack host cells' metabolic processes.

Bacterium Cells and Eukaryotic Cells similarity

Both Prokaryotic and Eukaryotic cells have double-stranded DNA and RNA in cytoplasm.

Signup and view all the flashcards

Cell Membrane vs. Virus Envelope

Both Cell Membrane and Virus Envelope control transport of molecules in and out.

Signup and view all the flashcards

Bacteriophage gene transfer

Bacteriophages can move genetic material between bacteria by integrating their DNA into the host's.

Signup and view all the flashcards

Fungi clade

The clade that includes mushrooms and yeast.

Signup and view all the flashcards

Infectious agents classification

Classifying infectious agents based on their energy acquisition—some don't use energy, some are bacteria which do use energy.

Signup and view all the flashcards

Best characteristic for classifying infectious agents

An infectious agent that infects both liver and red blood cells is a good characteristic to look for.

Signup and view all the flashcards

Human-rat study limitations

Drawing conclusions about human exposure to cell phone radiation from research on rats is inappropriate due to structural and functional differences between the species.

Signup and view all the flashcards

More Like This

Use Quizgecko on...
Browser
Open
Browser
Browser