WHAT IS LIFE ACHIEVE ACCESS ONLY >I<
5th Edition
ISBN: 9781319487317
Author: PHELAN
Publisher: INTER MAC
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Chapter 12, Problem 1MC
Summary Introduction
Introduction:
Miller's experiments helped understand how organic molecules arose from inorganic molecules and lead to life on earth.
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Check out a sample textbook solutionStudents have asked these similar questions
Which of the following was the least likely objective of the Urey-Miller experiment?
Group of answer choices
To demonstrate that oxygen can be produced by plants.
To recreate the conditions of the Earth before life existed and produce the molecules necessary for life from primordial inorganic matter (water, methane, ammonia, and carbon dioxide).
To build a case (though not necessarily prove) that life can originate from nonliving matter through natural means.
To demonstrate that organic molecules like amino acids (building blocks of protein) and nucleotide bases (building blocks of DNA) do not necessarily originate only from living matter.
To demonstrate that lightning may have been the essential energy source (early in Earth's evolution) in the production of molecules essential for life.
Giovani Aldini's reanimation experiments, especially in humans, were actually aimed at achieving what?
A. Resuscitation after trauma, particularly of cardiac function
B. To understand stages of nervous system decomposition
C. To restore life to the dead
D. To demonstrate his uncle's bioelectrical findings to the public
3) Based on the below, which of the following represents the best estimate of the Ka of oxygen
for myoglobin?
A) 0.2 µM
B) 0.4 µM
c) 0.6 µM
D ) 0.8 μΜ
E ) 1.0 μΜ
0.8
0.6
0.4
[o.]
K, - [0,]
0.2
4) How do you expect the result of the experiment outlined in question 3 would change if
Myoglobin was titrated with carbon monoxide instead of oxygen?
A) The Kd would be larger for myoglobin binding to carbon monoxide
B) The Kd would be smaller for myoglobin binding to carbon monoxide
C) There would be not change as oxygen and carbon monoxide bind with the same affinity
D) There would be no evidence of binding
E) The curve would show evidence of cooperativity
Chapter 12 Solutions
WHAT IS LIFE ACHIEVE ACCESS ONLY >I<
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Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, biology and related others by exploring similar questions and additional content below.Similar questions
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- Complex organic molecules have been found a. in the interstellar medium. b. inside meteorites. c. by performing Miller and Urey’s experiment. d. in all of the above. e. in none of the above.arrow_forwardThere may be more than correct answer for each Which of the following statements regarding enzymes are correct? a.) Enzymes lower activation energy b.) Enzymes are synthesized in the mitochondria c.) Enzymes show a high degree of specificity for substrates. d.) Enzymes stabilize intermediates The ability of DNA to denature is important for which of the following processes? a.) DNA synthesis b.) nucleic acid hybridization experiments c.) RNA synthesis d.) formation of biomembranesarrow_forwardRadioactivity is a phenomenon of the spontaneous emission of: A. protons (alpha particles) B. electrons (beta particles) C. gamma rays (short wave electromagnetic waves) D. All of the abovearrow_forward
- Which of the following chromatographic techniques has an attached ligand on the stationary phase? A. Affinity B. Ion exchange C. Gel filtration D. Hydrophobic interactionarrow_forwardRed blood cells were placed in an unknown solution. Micrographs were taken at the start of the experiment and after two minutes. The movement of which component of the solution caused the observed change? start of experiment Select one: a. glucose b. protein c. salt d. water after 2 minutesarrow_forwardArrange the following by size, from largest (on the left) to smallest (on the right). A. a human cheek cell B. an atom C. a protein D. a bacterium OA C> D > B OD A C> B O A D C> B OC A> B > D a 99+arrow_forward
- In a biology lab, it is critical to de-gas a polyacrylamide gel solution before pouring it so that gas bubbles do not form in the gel. What could you do to decrease the solubility of a gas in the polyacrylamide solution? Select one: a. Increase the temperature, and decrease the pressure. b. Decrease the temperature, and increase the pressure. c. Decrease the temperature, and decrease the pressure. d. Increase the temperature, and increase the pressure.arrow_forwardYou are studying the effect of different drinks on tooth enamel. In your experiment you place pieces of chalk in different drinks to record the time it takes for the chalk to completely dissolve A. Identify the dependent variable B. Identify the independent variable C. List two constantsarrow_forwardStanley Miller and Harold Urey created an experiment that simulated conditions on early Earth. Building on the results from this experiment, scientists decide to test the effect of varying the initial amount of NH3 on monomer formation. They set up the same simulation with the exception of starting with three different concentrations qf NH3. The amounts of H2 and CH4 are kept constant in each treatment. They run five simulations per NH3 concentration, as well as five simulations that only have H2 and CH4. Why did the scientists run five simulations with no NH3? * To test the hypothesis that early Earth's atmosphere contained no NH3. This serves as the control group. To test the effect that H2 and CH4 have on monomer formation. NH3 is a controlled variable. Caheele y Bleg PRIVACY POLICY | Terms of Usearrow_forward
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