Biology: The Unity and Diversity of Life (MindTap Course List)
15th Edition
ISBN: 9781337408332
Author: Cecie Starr, Ralph Taggart, Christine Evers, Lisa Starr
Publisher: Cengage Learning
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Textbook Question
Chapter 2, Problem 16SQ
Match the terms with their most suitable description.
| ____ | hydrophilic | a. protons > electrons |
| ____ | atomic number | b. number of protons in nucleus |
| ____ | hydrogen bonds | c. polar; dissolves easily in water |
| ____ | positive charge | d. collectively strong |
| ____ | negative charge | e. protons < electrons |
| ____ | temperature | f. measure of molecular motion |
| ____ | pH | g. water-dreading |
| ____ | covalent bond | h. electron sharing |
| ____ | hydrophobic | i. reflects H+ concentration |
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Match the terms with their most suitable description. ____ hydrophilic a. protons > electrons ____ atomic number b. number of protons in ____ hydrogen bonds nucleus ____ positive charge c. polar; dissolves easily in ____ negative charge water ____ temperature d. collectively strong ____ pH e. protons < electrons ____ covalent bond f. measure of molecular ____ hydrophobic motion g. water-dreading h. electron sharing i. reflects H+ concentration
Match the concept in column A to the concept in column B. Write the letter of the
correct answer on the blank provided.
A
В
a. they dissolve in water
but do not release ions
1.Aristotle
2.Robert Hooke
b. react with water to
produce ions.
c. act as an enzymes.
3. Antonie van Leeuwenhoek
d. parts of 2 different
kinds of molecules trade
4.nonelectrolytes
positions with one
another
e. organic substances
that control cellular
5.monosaccharides
activities in a very special
way.
f. responsible for about
two-thirds of the weight
of an adult human
g. classified animals
based on the presence of
blood.
h. molecular formula
i. Initially discovered the
cell.
6.proteins
7.isotopes
8.exchange reaction
9.nucleic acids
j. galactose
k. sucrose
10.water
I. atoms with the same
atomic number but
different atomic weights.
Letter only, no need to explain.
1. These are molecules composed of hydrogen, carbon and oxygen, with no 2:1 ratio of hydrogen to oxygen.
A. Lipids
B. Carbohydrates
C. Proteins
D. Nucleic acids
2. The following statement are true about water EXCEPT:
A.Water is a polar substance.
B.Water will dissolve non-polar substances
C.Water forms hydration shells around certain ions
D.The capacity of water to dissolve many substances comes from its dipolar nature.
3. If a compound dissociates into H+ and a negative ion, it is a?
A. acid
B. base
C. salt
D. neutral compound
4. The following are components of a nucleotide EXCEPT:
A. Pentose sugar
B. Phosphate group
C. hydroxyl group
D. Nitrogen-containing base
5. The following can be dissolved in water EXCEPT:
A. Salts
B. Carbohydrates
C. Lipids
D. Hydrochloric acid
Chapter 2 Solutions
Biology: The Unity and Diversity of Life (MindTap Course List)
Ch. 2 - Mercury Emissions by Continent By weight, coal...Ch. 2 - Mercury Emissions by Continent By weight, coal...Ch. 2 - Mercury Emissions by Continent By weight, coal...Ch. 2 - Mercury Emissions by Continent By weight, coal...Ch. 2 - What atom has only one proton? a. hydrogen b. an...Ch. 2 - A molecule into which a radioisotope has been...Ch. 2 - Prob. 3SQCh. 2 - Prob. 4SQCh. 2 - All ions have at least one ________ (select all...Ch. 2 - Rank the following chemical bonds in order of...
Ch. 2 - The measure of an atoms ability to pull electrons...Ch. 2 - The mutual attraction of opposite charges holds...Ch. 2 - Atoms share electrons unequally in a(n) ________...Ch. 2 - A(n) ________ substance repels water. a. acidic b....Ch. 2 - Prob. 11SQCh. 2 - Prob. 12SQCh. 2 - When dissolved in water, a(n) ________ donates H+;...Ch. 2 - A ________ can help keep the pH of a solution...Ch. 2 - Prob. 15SQCh. 2 - Match the terms with their most suitable...Ch. 2 - Alchemists were medieval scholars and philosophers...Ch. 2 - Draw a shell model of a lithium atom (Li), which...Ch. 2 - Polonium is a rare element with 33 radioisotopes....Ch. 2 - Some undiluted acids are not as corrosive as when...
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- The water lattice: a. is formed from hydrophobic bonds. b. causes ice to be denser than water. c. causes water to have a relatively low specific heat. d. excludes nonpolar substances. e. is held together by hydrogen bonds that are permanent; that is, they never break and reform.arrow_forwardAtoms share electrons unequally in an _______ bond. a. ionic c. polar covalent b. hydrogen d. nonpolar covalentarrow_forwardA hydrogen bond can form between____________ adjacent to each other.a. two hydrogen atomsb. two oxygen atomsc. a hydrogen atom and an oxygen atomd. negative chargesarrow_forward
- When hydrogen is a part of a ________, it has a slight positive charge. a. Ionic bond b. polar covalent bond c. nonpolar covalent bondarrow_forwardA molecule of ammonia contains one atom of nitrogenand three atoms of hydrogen. These are linked with ________.a. ionic bondsb. nonpolar covalent bonds c. polar covalent bondsd. hydrogen bondsarrow_forward1. The partial negative charge at one end of a water molecule is attracted to the partial positive charge of another water molecule. This attraction is called: a. a covalent bond b. a hydration shellhydrogen bond d. a hydrophobic bond e. an ionic bond 2. True or False. A hydrogen bond that is linear is more stable than one that is bent.arrow_forward
- One of the most important properties of water is that it can form a _______ with other water molecules. This means that water molecules are able to “stick together” to a certain extent. The term for this property is cohesion. A. Ionic bond B. Covalent Bond C. Hydrogen Bondarrow_forwardThe mutual attraction of opposite charges holds atomstogether as molecules in a(n) ________ bond.a. ionic c. polar covalentb. hydrogen d. nonpolar covalentarrow_forwardIn the presence of water, nonpolar associations form between molecules or regions of molecules that are ____. A. partially charged B. hydrophobic C. hydrophilic D. hydrophobic and hydrophilicarrow_forward
- Bonds in which atoms share electrons are defined as _____________ bonds.a. hydrogenb. ionicc. doubled. covalentarrow_forwardSubstances those are partially dissolved in water are commonly known as اخترأحد الخيارات a. hydrophilic / hydrophobic b. false statement c. hydrophilic d. hydrophobic e. all given choices are incorrectarrow_forwardChoose the best answer for following question. Hydrogen bonds are formed as a result of which of the following?a. ionic bondsb. nonpolar covalent bondsc. polar covalent bondsd. None of these are correct.arrow_forward
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