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Beschreibung
Quiz von Charlie Kirkham, aktualisiert more than 1 year ago
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Erstellt von Charlie Kirkham
vor etwa 6 Jahre
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Frage 1
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The lowest level of biological organization considered alive is the
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cell
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macromolecule
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atom
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proton
Frage 2
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In general, the job of a buffer is to
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make a solution less basic
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maintain pH homeostasis
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disrupt pH homeostasis
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make a solution less acidic
Frage 3
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pH describes the concentration of
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Hydrogen ions (H+)
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Water molecules relative to ions
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Hydrogen gas (H2)
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Hydroxide ions (OH-)
Frage 4
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Water molecules form hydrogen bonds and "stick to each other because
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the hydrogen atoms carry partial positive charges.
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the oxygen atom carries a partial negative charge.
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it is highly polar.
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all of the above
Frage 5
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Each atom of a given element always has the same number of
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protons
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neutrons
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isotopes
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electrons
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ions
Frage 6
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How is evolution different from the other characteristics of life?
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It takes a long time
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It operates differently for different species
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It occurs in populations, not individuals
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It only occurs in multicellular organisms
Frage 7
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The bond between monomers in lipids is the
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Glycosidic linkage
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Peptide bond
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Phosphodiester bond
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Ester bond
Frage 8
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How is carbohydrate use similar or different between plants and animals? Select the true statement below.
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In animals, carbohydrates only have a structural role, while in plants, carbohydrates are used to store energy
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Carbohydrates only have a structural role in both plants and animals
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Carbohydrates play a structural role and an energy role in both plants and animals.
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In animals carbohydrates only function in energy story, while in plants, carbohydrates only have a structural role,
Frage 9
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How do phospholipids interact with water molecules?
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The polar heads avoid water; non-polar tails attract water
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The polar heads interact with water; the non-polar tails do not.
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Phospholipids don't interact with water because water is polar and lipids are non-polar.
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Phospholipids dissolve in water.
Frage 10
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The ɑ-helix and ꞵ pleated sheet are examples of which type of protein structure?
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Primary
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Secondary
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Tertiary
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Quaternary
Frage 11
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Reactions that use a water molecule to break a large molecule into smaller subunits are called reactions.
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Condensation
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Hydration
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Hydrolysis
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Dehydration synthesis
Frage 12
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Which type of structure would result in a functional protein?
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Primary
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Secondary
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Tertiary
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Denatured
Frage 13
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The monomer of carbohydrates is the
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Monosaccharide
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Amino Acid
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Fatty Acid
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Nucleotide
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