Biology 1450 Exam 1: University of Nebraska Omaha || with 100% Verified Solutions.
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Biology 1450
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Biology 1450
Hierarchy of Organizational Levels correct answers Biosphere, Ecosystem, Community, Population, Organism, Organ System/Organ, Tissue, Cell, Organelle, Molecule, and Atom
Exchange of Energy and Matter between organisms and their environment correct answers Energy Conversion: How living systems co...
Biology 1450 Exam 1: University of Nebraska Omaha || with
100% Verified Solutions.
Hierarchy of Organizational Levels correct answers Biosphere, Ecosystem, Community,
Population, Organism, Organ System/Organ, Tissue, Cell, Organelle, Molecule, and Atom
Exchange of Energy and Matter between organisms and their environment correct answers
Energy Conversion: How living systems convert energy between different forms to maintain
themselves
What is the basic unit of Biological structure and function? correct answers The Cell
What is the Central Dogma correct answers The transmission and employment of biological
information in the form of DNA
Describe the process of the Central Dogma correct answers DNA transcribes RNA which
translates to protein
What is a Covalent Bond? correct answers A bond in which electrons might be shared equally or
un-equally to form polar or non-polar bonds.
What is an Ionic Bond? correct answers A bond in which electrons are not shared between
atoms, but rather ions of opposite charges stick to each other.
What is an Hydrogen Bond? correct answers A bond in which neighboring polar molecules may
align through interactions between partially positive and partially negative regions.
# of bonds that commonly form between Carbon correct answers 4
# of bonds that commonly form between Nitrogen correct answers 3
# of bonds that commonly form between Oxygen correct answers 2
# of bonds that commonly form between Hydrogen correct answers 1
What element are "molecular skeletons" made from correct answers Carbon
How can we distinguish between structural and geometric isomers? correct answers By looking
at how the covalent bonds are arranged
How may a Carbon skeleton be modified? correct answers By changing the atoms (or groups of
atoms) that are bound to the Carbons
What is a "functional group" correct answers the atoms (or groups of atoms) that are bound to
Carbons
, Name the important functional groups that contain oxygen correct answers Hydroxyl, Carbonyl,
and Carboxyl
Name the important functional groups that don't contain oxygen correct answers Amino,
sulfhydryl, phosphate
What is the important property of the functional groups without oxygen correct answers Their
occurrence results in a less-even distribution of electrons over the molecules surface
Name the 4 major groups of biological molecules that make up a majority of cell structures
correct answers Lipid, Nucleic Acids, Carbohydrates, Proteins
How are monomers linked together? correct answers Through a condensation reaction with
accompanying dehydration
How are monomers broken apart correct answers Through Hydrolysis
Carbohydrate Polymers can have different properties because of? correct answers the orientation
of the covalent bonds
How many amino acids are commonly used to build polypeptides? correct answers 20
Each monomer for nucleic acids are made of what 3 parts? correct answers a phosphate, a ribose
sugar (or its derivative, as deoxyribose), and a nitrogenous base
Lipid monomer? correct answers They don't have one
Are lipids hydrophobic or hydrophilic? correct answers Hydrophobic
How can lipids be modified to be hydrophilic correct answers By linking themselves to
hydrophilic moieties or adding functional groups
What is a functional group that can link to lipids correct answers Phosphates
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