Alberts Molecular Biology of Cell - Chapter 007 Test Quiz Bank With Questions & Answers 2023/2024 Verified
Covalent bonds correct answers Atoms of
... [Show More] 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 [Show Less]