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POB UNIVERSITY OF ARKANSAS EXAM 1
SHADWICK | COMPREHENSIVE Q&A FOR
GUARANTEED PASS
Microscope - correct-answer-revolution for understanding life
-Robert Hooke
Light Microscope - correct-answer-specimens can be magnified up to 1000 times
Macromolecule - correct-answer-carb, proteins (amino acid & polypeptide),
nucleic acid (nucleotide), lipids (no mono or poly).
Matter - correct-answer-refers to anything that takes up space and has mass
(solid, liquid, gas, plasma)
Elements - correct-answer-All matter of living things are composed of elements; a
substance that can't be broken down to simpler substances with different
properties by ordinary chemical means
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Calorie - correct-answer-amount of heat energy needed to raise the temp of 1g
of h2o by 1 degree c
Hydrophillic - correct-answer-molecules that can attract water (head)
Hydrophobic - correct-answer-can't attract water (nonionized and non-polar
molecules; fats & oil)
Adhesive - correct-answer-ability of water molecules to cling to other polar
surfaces
Surface Tension - correct-answer-stronger the force between molecules in a
liquid the greater the ST.
It acts as a barrier between the surface of water and the atmosphere
Acids - correct-answer-substances that release hydrogen ions (h+) when they
dissolve in h20
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Bases - correct-answer-substances that either take up hydrogen ions (h+) or
release hydroxide ions (OH-)
Buffer - correct-answer-substance that keeps the pH with in normal limits
Inorganic molecule - correct-answer-play an important role in living organisms
example: salt and water
Pentose, Hexoses - correct-answer-monosacs with 5 carbons, 6 carbons
Glucose - correct-answer-hexose found in our blood that is an immediate source
of energy.
Lipids - correct-answer-contain more then 1 g of energy per other biological
molecules while fats and oils function as energy storage
Fats - correct-answer-are of animal origin, insulate against heat loss, forms a
protective cushion around other organisms.
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a fat molecule is a triglyceride; 3 part structure
Emulsification and Emulsifiers - correct-answer-fat or oil disperses in water.
and contain molecules with a non-polar and polar end.
Fatty Acid - correct-answer-hydrocarbon chain that ends with the acidic group -
COOH (16-18 carbons sat or unsat.)
Saturated Fatty Acid - correct-answer-have no double bonds between carbons,
solid at room temp, has all hydrogens it can hold
Unsaturated Fatty Acids - correct-answer-double bonds between carbon atoms
where the number of hydrogens is less then 2 carbons.
-bend is acid chain
-liquid at room temp ("cias" or "trans")
Trans-Fats - correct-answer-provided by hydrogenation or the chemical addition
of hydrogen to vegetable oils
-converts the fats to solids and is in processed foods
POB UNIVERSITY OF ARKANSAS EXAM 1
SHADWICK | COMPREHENSIVE Q&A FOR
GUARANTEED PASS
Microscope - correct-answer-revolution for understanding life
-Robert Hooke
Light Microscope - correct-answer-specimens can be magnified up to 1000 times
Macromolecule - correct-answer-carb, proteins (amino acid & polypeptide),
nucleic acid (nucleotide), lipids (no mono or poly).
Matter - correct-answer-refers to anything that takes up space and has mass
(solid, liquid, gas, plasma)
Elements - correct-answer-All matter of living things are composed of elements; a
substance that can't be broken down to simpler substances with different
properties by ordinary chemical means
,2|Page
Calorie - correct-answer-amount of heat energy needed to raise the temp of 1g
of h2o by 1 degree c
Hydrophillic - correct-answer-molecules that can attract water (head)
Hydrophobic - correct-answer-can't attract water (nonionized and non-polar
molecules; fats & oil)
Adhesive - correct-answer-ability of water molecules to cling to other polar
surfaces
Surface Tension - correct-answer-stronger the force between molecules in a
liquid the greater the ST.
It acts as a barrier between the surface of water and the atmosphere
Acids - correct-answer-substances that release hydrogen ions (h+) when they
dissolve in h20
,3|Page
Bases - correct-answer-substances that either take up hydrogen ions (h+) or
release hydroxide ions (OH-)
Buffer - correct-answer-substance that keeps the pH with in normal limits
Inorganic molecule - correct-answer-play an important role in living organisms
example: salt and water
Pentose, Hexoses - correct-answer-monosacs with 5 carbons, 6 carbons
Glucose - correct-answer-hexose found in our blood that is an immediate source
of energy.
Lipids - correct-answer-contain more then 1 g of energy per other biological
molecules while fats and oils function as energy storage
Fats - correct-answer-are of animal origin, insulate against heat loss, forms a
protective cushion around other organisms.
, 4|Page
a fat molecule is a triglyceride; 3 part structure
Emulsification and Emulsifiers - correct-answer-fat or oil disperses in water.
and contain molecules with a non-polar and polar end.
Fatty Acid - correct-answer-hydrocarbon chain that ends with the acidic group -
COOH (16-18 carbons sat or unsat.)
Saturated Fatty Acid - correct-answer-have no double bonds between carbons,
solid at room temp, has all hydrogens it can hold
Unsaturated Fatty Acids - correct-answer-double bonds between carbon atoms
where the number of hydrogens is less then 2 carbons.
-bend is acid chain
-liquid at room temp ("cias" or "trans")
Trans-Fats - correct-answer-provided by hydrogenation or the chemical addition
of hydrogen to vegetable oils
-converts the fats to solids and is in processed foods
