Biology with Connect Access Card
10th Edition
ISBN: 9780077705701
Author: Raven, Peter
Publisher: McGraw-Hill Education
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Textbook Question
Chapter 1, Problem 1A
What is the significance of Pasteur’s experiment to test the germ hypothesis?
a. It proved that heat can sterilize a broth.
b. It demonstrated that cells can arise spontaneously.
c. It demonstrated that some cells are germs.
d. It demonstrated that cells can only arise from other cells.
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Students have asked these similar questions
Which statement about spontaneous generation is false?
A.
It addresses the formation of living cells from previously nonliving material.
B.
This was a common belief for during the Middle Ages.
C.
Pasteur demonstrated that it does not occur under normal laboratory conditions.
D.
It occurs every time a new species evolves from a preexisting species.
E.
It apparently occurred at least once – when life on Earth began.
What would the results of Pasteur's swan-neck flask experiment have looked like if they supported the theory of spontaneous generation? B. What did Pasteur's experiments not prove? C. How would the presence of endospores in Louis Pasteur's nutrient solutions have affected his conclusions about spontaneous generation?
Which is a piece of evidence that supports the endosymbiotic theory?
Select all that apply.
(Group of answer choices)
A. many bacteria are resistant to antibiotics
B. eukaryotic cells have cell membranes
C. mitochondria have their own DNA
D. chloroplast DNA is more similar to cyanobacteria DNA than eukaryotic DNA
E. ribosomes are present in eukaryotic cells
F. mitochondria must divide to multiply, cells can't build them
Chapter 1 Solutions
Biology with Connect Access Card
Ch. 1 - Prob. 1UCh. 1 - Prob. 2UCh. 1 - A hypothesis in biology is best described as a. a...Ch. 1 - Prob. 4UCh. 1 - The cell theory states that a. cells are small. b....Ch. 1 - The molecule DNA is important to biological...Ch. 1 - The organization of living systems is a. linear...Ch. 1 - The idea of evolution a. was original to Darwin....Ch. 1 - What is the significance of Pasteurs experiment to...Ch. 1 - Which of the following is NOT an example of...
Ch. 1 - How is the process of natural selection different...Ch. 1 - If you found a fossil for a modem organism next to...Ch. 1 - The theory of evolution by natural selection is a...Ch. 1 - In which domain of life would you find only...Ch. 1 - Evolutionary conservation occurs when a...Ch. 1 - Exobiology is the study of life on other planets....Ch. 1 - The classic experiment by Pasteur (figure 1.4)...
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- The term "Superbug" refers to? A. Certain bacteria strain that can grow in all kinds of unfavorable conditiions B. Certain bacteria strain is more toxic than all the viruses C. Certain bacteria strain that is resistant to all available antibiotics D. Certain bacteria strain that grows faster than any other strainsarrow_forwardDNA is directly passed from one live microbial cell to another in the process of ? A. Conjugation B. Transformation C. Transduction D. Transmutationarrow_forwardWhich choice correctly shows the relative amounts of non-coding DNA? A. A human has a greater relative amount of non-coding DNA than an elephant. B. An elephant has a greater relative amount of non-coding DNA than a fruit fly. C. A fruit fly has a greater relative amount of non-coding DNA than a bacterium. D. A bacterium has a greater relative amount of non-coding DNA than an archaean,arrow_forward
- According to the endosymbiotic theory, why was it adaptive for the larger (host) cell to keep the engulfed cell alive, rather than digesting it as food? A. The host cell would have been poisoned if it had digested the engulfed cell. B. The host cell was able to survive anaerobic conditions with the engulfed cell alive. C. The engulfed cell provided the host cell with CO2 D. The engulfed cell provided the host cell with ATP. E. The engulfed cell allowed the host cell to metabolize glucose.arrow_forwardSelect a statement that is not correct about bacterial fimbriae? A. they protect the cell from dehydration B. they are called attachment pili to distinguish them from the pili used to transfer DNA during conjugation C. they are used to attach the cell to its substrate or to other prokaryote D. they are hair-like projections that aid in attachment.arrow_forwardWhat types of organisms can produce their own food required to survive? A. Organisms that can do cellular respiration B. Organisms that have free-floating DNA C. Organisms that can do photosynthesis D. Organisms with a special enzymearrow_forward
- Which statement about the genomes of prokaryotes is not correct? A. Prokaryotic chromosomes are sometimes called plasmids B. Prokaryotic genomes are haploid throughout the life of the cell C. The prokaryotic chromosome is found the nucleoid region D. Prokaryotic genomes are composed of circular DNAarrow_forwardMatch the following questions about the people who shaped the field of Microbiology to the "BEST" possible answer... A. Used lenses to make drawings of eukaryotes B. His early work laid the foundation for the study of plant diseases C. Discovered that organisms can derive energy from several different inorganic compounds D. Conducted later experiments to refute spontaneous generation E. Carried out early widespread vaccinations F. His bacterial grouping system laid the foundation for taxonomy based on genetics G. Published early accounts of sexual transmitted diseases H. Used lenses to make drawings of prokaryotes I. Conducted early experiments to refute spontaneous generation J. His bacterial grouping system laid the foundation for taxonomy based on morphologyarrow_forwardLong ago, many people believed that living things could come from nonliving things. They thought that worms came from wood and that maggots came from decaying meat. This idea was called spontaneous generation. In 1668, an Italian biologist, Francesco Redi, did experiments to prove that maggots did not come from meat. One of his experiments is described below. Redi placed pieces of meat in several jars. He divided the jars into two groups. He covered the first group of jars with fine cloth. He left the second group of jars uncovered. Redi observed the jars for several days. He saw flies on the cloth of the covered jars, and he saw flies laying eggs on the meat in the uncovered jars. Maggots appeared only on the meat in the group of jars left uncovered. What was the question in Redi's experiment? O Is spontaneous generation a valid explanation for maggots in meats? O How do maggots appear in meats? O Are jars a good place to grow maggots?arrow_forward
- Which statement about bacteria is true? a. Most bacteria cause disease. b. They are responsible for morning breath. c. Bacteria are not a monophyletic group. d. The biomass of bacteria is smaller than that of all the plants and animals. e. They are all single-celled with one or more linear molecules of DNA.arrow_forwardWhich of the following experiments was used by Twort and d'Herelle to demonstrate the existence of bacteriophages? a. Examination with an electron microscope b. Examination with the light microscope c. Mixing phages with bacteria in liquid media d. Mixing phages with bacteria on solid agararrow_forwardWitch of the following accurately describes biotechnologyarrow_forward
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