Alberts Molecular Biology of Cell - Chapter 007 Test Quiz Bank
With Questions & Answers 2023/2024 Verified
Covalent bonds correct answers Atoms of elements linked together by...to form molecules
Noncovalent bonds correct answers Two different molecules can be held together by...
Bond strength correct answers ...measured by amount of energy needed to break it: KJ/mole or
kcal/mole
One joule correct answers ...amount of energy needed to move object one meter against one Newton
One calorie correct answers ...amount of energy needed to raise temp of 1 gram of water by 1 °C
Highly polar correct answers Two bonds in H2O are...because O is strongly attractive to electrons
Negative charge correct answers Uneven distribution of electrons in H2O so the O has a...
Hydrogen bond correct answers When O atom interacts with H atom on another water molecule a...is
formed
Polar bonds correct answers Molecules that contain...that can form hydrogen bonds with water dissolve
readily e.g. alcohols
Hydrophilic correct answers Water-loving, e.g. molecules that are charged
Hydrophobic correct answers Water-hating, e.g. molecules that are uncharged
Hydrocarbons correct answers All H atoms are covalently linked to C atoms by large nonpolar bond
Ionic bonds correct answers A non-covalent bond: electrostatic attractions
Van der Waals forces correct answers Attraction of intermolecular forces between molecules London or
dipole-dipole
Hydrogen bond correct answers Shared between two electronegative atoms, highly directional
Proton correct answers When hydrogen gives up its electron it becomes a...
Hydronium ion (H3O+) correct answers When proton is attracted to O on a water molecule it becomes
a...
Acids correct answers Substances that release protons when dissolved in water are termed...
pH scale correct answers Concentration of H3O+ expressed using logarithmic scale called the...
Base correct answers Any molecule capable of accepting a proton from water molecule is called a...
, Buffers correct answers Are weak acids or bases that keep cell at neutral
Methyl correct answers -CH3
Hydroxyl correct answers -OH
Carboxyl correct answers -COOH
Carbonyl correct answers -C=O
Phosphate correct answers -〖PO3〗^(2-)
Sulfhydryl correct answers -SH
Amino correct answers -NH2
Macromolecules correct answers Are polymers constructed by covalently linking monomers into long
chains
Ribulose bisphosphate carboxylase correct answers Enzyme that helps to convert CO2 into sugars in
photosynthetic organisms
Tubulin correct answers Protein that makes microtubules
Histones correct answers Proteins that compact DNA in chromosomes
Condensation correct answers Monomers added to polymer in a...reaction
Ribozymes correct answers RNA catalysts
Catabolic correct answers ...pathway breaks foodstuffs into smaller molecules
Anabolic correct answers ...pathway use energy to synthesise other molecules
2nd law of thermodynamics correct answers In any isolated system, the degree of disorder increases
Entropy correct answers Amount of disorder quantified by the...of the system
1st law of thermodynamics correct answers Energy can be converted from one form to another but
cannot be destroyed
Oxidation correct answers Energy extracted from food molecules by a process of gradual...
Aerobic respiration correct answers Cell obtain energy by allowing carbon & hydrogen to combine with
oxygen
Oxidation correct answers Refers to the removal of electrons
With Questions & Answers 2023/2024 Verified
Covalent bonds correct answers Atoms of elements linked together by...to form molecules
Noncovalent bonds correct answers Two different molecules can be held together by...
Bond strength correct answers ...measured by amount of energy needed to break it: KJ/mole or
kcal/mole
One joule correct answers ...amount of energy needed to move object one meter against one Newton
One calorie correct answers ...amount of energy needed to raise temp of 1 gram of water by 1 °C
Highly polar correct answers Two bonds in H2O are...because O is strongly attractive to electrons
Negative charge correct answers Uneven distribution of electrons in H2O so the O has a...
Hydrogen bond correct answers When O atom interacts with H atom on another water molecule a...is
formed
Polar bonds correct answers Molecules that contain...that can form hydrogen bonds with water dissolve
readily e.g. alcohols
Hydrophilic correct answers Water-loving, e.g. molecules that are charged
Hydrophobic correct answers Water-hating, e.g. molecules that are uncharged
Hydrocarbons correct answers All H atoms are covalently linked to C atoms by large nonpolar bond
Ionic bonds correct answers A non-covalent bond: electrostatic attractions
Van der Waals forces correct answers Attraction of intermolecular forces between molecules London or
dipole-dipole
Hydrogen bond correct answers Shared between two electronegative atoms, highly directional
Proton correct answers When hydrogen gives up its electron it becomes a...
Hydronium ion (H3O+) correct answers When proton is attracted to O on a water molecule it becomes
a...
Acids correct answers Substances that release protons when dissolved in water are termed...
pH scale correct answers Concentration of H3O+ expressed using logarithmic scale called the...
Base correct answers Any molecule capable of accepting a proton from water molecule is called a...
, Buffers correct answers Are weak acids or bases that keep cell at neutral
Methyl correct answers -CH3
Hydroxyl correct answers -OH
Carboxyl correct answers -COOH
Carbonyl correct answers -C=O
Phosphate correct answers -〖PO3〗^(2-)
Sulfhydryl correct answers -SH
Amino correct answers -NH2
Macromolecules correct answers Are polymers constructed by covalently linking monomers into long
chains
Ribulose bisphosphate carboxylase correct answers Enzyme that helps to convert CO2 into sugars in
photosynthetic organisms
Tubulin correct answers Protein that makes microtubules
Histones correct answers Proteins that compact DNA in chromosomes
Condensation correct answers Monomers added to polymer in a...reaction
Ribozymes correct answers RNA catalysts
Catabolic correct answers ...pathway breaks foodstuffs into smaller molecules
Anabolic correct answers ...pathway use energy to synthesise other molecules
2nd law of thermodynamics correct answers In any isolated system, the degree of disorder increases
Entropy correct answers Amount of disorder quantified by the...of the system
1st law of thermodynamics correct answers Energy can be converted from one form to another but
cannot be destroyed
Oxidation correct answers Energy extracted from food molecules by a process of gradual...
Aerobic respiration correct answers Cell obtain energy by allowing carbon & hydrogen to combine with
oxygen
Oxidation correct answers Refers to the removal of electrons
