Pearson eText Biology: Science for Life -- Instant Access (Pearson+)
6th Edition
ISBN: 9780135214084
Author: Colleen Belk, Virginia Maier
Publisher: PEARSON+
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Chapter 2, Problem 2AAATB
Summary Introduction
To review:
The chemical properties of water that is the basis for a study to consume at least eight glasses of water in a day.
Introduction:
Water is a colorless, transparent and odorless liquid. It is a chemical compound that consists of one oxygen atom and two hydrogen atoms. It is the basis of the body fluids of living organisms. It forms rivers, lakes, seas, and rain.
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Henry Cavendish, of the Royal Society of London, discovered that water was composed of two parts “inflammable air” and one part “dephlogisticated air”, or as Antoine Lavoisier called these elements:
two parts “oxygen” and one part “hydrogen”
two parts “carbon” and one part “oxygen”
two parts “hydrogen” and one part “oxygen”
two parts “oxygen” and one part “carbon”
two parts “hydrogen” and one part “carbon”
Which of the following statements is not true? a. Water is polar. b. Water stabilizes temperature. c. Water is essential for life. d. Water is the most abundant molecule in the Earth’s atmosphere.
Which of the following statements is not true?a. Water is polar.b. Water stabilizes temperature.c. Water is essential for life.d. Water is the most abundant atom in Earth’s atmosphere.
Chapter 2 Solutions
Pearson eText Biology: Science for Life -- Instant Access (Pearson+)
Ch. 2 - Prob. 1LTBCh. 2 - Prob. 2LTBCh. 2 - Add labels to the figure that follows, which...Ch. 2 - Prob. 4LTBCh. 2 - Prob. 5LTBCh. 2 - Which of the following terms is least like the...Ch. 2 - Different proteins are composed of different...Ch. 2 - Proteins may function as ___________ genetic...Ch. 2 - Prob. 9LTBCh. 2 - Eukaryotic cells differ from prokaryotic cells in...
Ch. 2 - Which of the following lists the chemical bonds...Ch. 2 - Which of the following is not consistent with...Ch. 2 - Consider a virus composed of a protein coat...Ch. 2 - Prob. 2AAATBCh. 2 - Carbon, oxygen, hydrogen, and nitrogen are common...Ch. 2 - List some alternate explanations that should be...Ch. 2 - Do some web-based research using scientifically...Ch. 2 - Prob. 1MTC
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- Which of the following statements explains why oils are liquid at room temperature whereas fats are solid?arrow_forwardAlchemists were the forerunners of modern-day chemists. Many of these medieval scholars and philosophers spent their lives trying to transform lead (atomic number 82) into gold (atomic number 79). Explain why they never succeeded.arrow_forwardList three other properties of water that make it an essential for living organismsarrow_forward
- Answer this following question in your own words: question 1: Identify the four most abundant elements in the body. question 2: Explain the relationship between an atom’s number of electrons and its relative stability. Question 3: Briefly identify a few characteristic points about the following bonds: Ionic bonds, Covalent bonds, and Hydrogen bonds. Question 4: Explain how energy is invested, stored, and released via chemical reactions? Question 5: Compare and contrast the difference between Proteins, Carbohydrates, Lipids and Nucleic acids?arrow_forwardYou are stranded on a lifeboat with several other people in the middle of the ocean. You have run out of clean drinking water and are very thirsty. The others have started to drink the seawater to quench their thirst. Since you’re waiting for rescue (and are a top notch AP Biology student), you decide to solve a couple of water potential problems to determine if drinking sea water is a good idea or not. a) The majority of dissolved ions in seawater is NaCl, roughly a 0.5M concentration. The ionization constant of NaCl is 2.0. Calculate the solute potential for seawater if you know that the water is 2°C. b) Your own cells have a 0.15M concentration. Calculate the solute potential for your own cells, knowing that body temperature is 37°C. c) Using your knowledge about water potential, if you drink the seawater, wat will happen when the seawater comes into contact with your body’s cells? Note: ΨP for animal cells is zeroarrow_forwardThe PH formula is given as PH=-log(H+). The H+ is the number of free ions of hydrogen. A seven PH is considered neutral. Discuss what having a low PH and a high PH means. What does a 12 PH mean? How about a 2? Which is more caustic? Is either a good thing at extremely high or low values? Explain fully as to what a PH means to you and what you use it for.arrow_forward
- Water has a specific heat of 1 cal/degree/gram. Does this have any significance in human physiology?arrow_forwardRemember the glass slide experiment where two dry slides wouldn't stick to each other but the slides with one drop of water between them would adhere to one another? Ethanol forms fewer hydrogen bonds than water due to the chemical differences between the two molecules. If we performed this same experiment with the glass slides using ethanol instead of water, what would we observe? O It will be more difficult to separate slides with a drop of ethanol between them There will be no difference in the amount of effort required to separate slides with drops of ethanol or water between them O It would be easier to separate slides with a drop of ethanol between themarrow_forwardUsing appropriate examples, explain how hydrogen bonding givesrise to three properties of water that are essential to life.arrow_forward
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