Biology: Life on Earth with Physiology Plus Mastering Biology with Pearson eText -- Access Card Package (11th Edition)
11th Edition
ISBN: 9780133910605
Author: Gerald Audesirk, Teresa Audesirk, Bruce E. Byers
Publisher: PEARSON
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Chapter 1, Problem 4MC
Summary Introduction
Introduction:
Viruses are defined as the small infectious agents that are able to replicate inside the cell of living organisms. They lack the capacity to reproduce outside of host cell. It contains either DNA or RNA as a genetic material.
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Viruses consist of either DNA or RNA wrapped inside a protein coat. Are viruses considered alive?
A.
Yes, because they contain DNA.
B.
Yes, because they contain DNA and proteins.
C.
No, because they lack carbohydrates and lipids.
D.
No, because some viruses use RNA as the main genetic molecule.
There is a big debate if viruses are alive or not.
Either way, look at the list below and pick out the accurate statements.
A.
Can only reproduce/replicate in a living cell.
B.
They have a protein coat surrounding and protecting the nucleic acid.
C.
Viruses have either DNA OR RNA - not both
D.
They sometimes have an envelope.
Which of the following statements is not true?
Select one:
a. Viruses multiply inside living cells using viral - mRNA, tRNA & ribosomes.
b. Viruses multiply inside living cells.
c. Viruses contain DNA or RNA.
d. The nucleic acid of a virus is surrounded by a protein coat.
e. Viruses cause the synthesis of specialized infectious elements.
Chapter 1 Solutions
Biology: Life on Earth with Physiology Plus Mastering Biology with Pearson eText -- Access Card Package (11th Edition)
Ch. 1.1 - Describe the source of the energy stored In the...Ch. 1.1 - Prob. 1CYLCh. 1.1 - explain why these characteristics are necessary to...Ch. 1.1 - describe how reproduction allows evolution to...Ch. 1.1 - The Boundaries of Life Are viruses alive? Viruses...Ch. 1.2 - explain what mutations are, how they occur, what...Ch. 1.2 - explain how natural processes lead inevitably to...Ch. 1.2 - describe how a new species can be produced by...Ch. 1.2 - The largest dinosaurs were plant-eaters. Based on...Ch. 1.3 - Prob. 1CYL
Ch. 1.3 - Prob. 2CYLCh. 1.3 - describe the fundamental differences between...Ch. 1.3 - What current, ongoing environmental change is...Ch. 1.4 - describe the principles underlying science?Ch. 1.4 - outline the scientific method?Ch. 1.4 - explain why controls are crucial in biological...Ch. 1.4 - explain why fundamental scientific principles are...Ch. 1.4 - distinguish between inductive and deductive...Ch. 1.4 - Prob. 1TCCh. 1.4 - Fruit flies, bacteria from hot springs, sea...Ch. 1.4 - The Boundaries of Life If viruses aren't a form of...Ch. 1 - Evolution is a. a belief. b. a scientific theory....Ch. 1 - Prob. 2MCCh. 1 - Prob. 3MCCh. 1 - Prob. 4MCCh. 1 - Which one of the following is True? a. The...Ch. 1 - Organisms respond to ________. Organisms acquire...Ch. 1 - Prob. 2FIBCh. 1 - Prob. 3FIBCh. 1 - Prob. 4FIBCh. 1 - Prob. 5FIBCh. 1 - Prob. 1RQCh. 1 - Prob. 2RQCh. 1 - Prob. 3RQCh. 1 - Prob. 4RQCh. 1 - What are some differences between prokaryotic and...Ch. 1 - What basic principles underlie scientific inquiry?Ch. 1 - Prob. 7RQCh. 1 - Prob. 8RQCh. 1 - Explain the differences between inductive and...Ch. 1 - List the steps in the scientific method with a...Ch. 1 - What misunderstanding causes some people to...Ch. 1 - Prob. 2ACCh. 1 - Review Alexander Flemings experiment that led to...Ch. 1 - Prob. 4ACCh. 1 - Prob. 5AC
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- A positive-strand RNA virus: a.must first be converted to a mRNA before viralproteins can be translated b.is not recognized by host ribosomes. c.can directly translate viral proteins. d.will be degraded by host enzymes. e.needs RNA dependent RNA polymerase to get converted into mRNAarrow_forwardAn experimental drug therapy to treat patients with antibiotic-resistant bacteria involves introduction of a highly specific bacteriophage to the infected patient's bloodstream. Which of the following bacteriophage types would be the LEAST useful for this therapy? a. a lytic bacteriophage b. An enveloped virus c. An RNA virus d. a lysogenic bacteriophagearrow_forwardThe genome of________ can be either RNA or DNA. a. a bacterium c. a virus b. a eukaryote d. an archaeonarrow_forward
- What is different between viruses and bacteria? a. Viruses are typically smaller than bacteria b. Viruses cannot reproduce on their own, while bacteria can c. Bacteria have cell membranes while viruses do not d. Bacteria can be eliminated by antibiotics, while viruses cannot be e. All of the abovearrow_forwardMost viruses use their own virally encoded: a. DNA/RNA polymerase b. Endoplastmic reticulum c. Ribosomes d. Mitochondriaarrow_forwardWhich of the following is NOT true about viruses? O a. The vast majority cause severe disease of their host O b. Genes comprise 5-8% of the human genome O c. Can cause cancer O d. Can be modified to use as treatments against human conditionsarrow_forward
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