Biochemistry MCQ

Plants are being engineered to produce their own insecticides; therefore, __________.

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The attractive forces that are important in the secondary structure of a protein are ________.

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Regarding the models of cooperativity, _________.

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In the ionized form of an amino acid, the carboxylic acid end is ________.

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When cycling forward in a straight line, the knee is rotating about a(n) ____ axis.

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Bioinformatics can be used to scan for short sequences that specify known mrnas, called _____.

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In a dehydration synthesis reaction, __________ is always formed as a by-product of the reaction.

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In a dehydration reaction, ________. in order for this to occur water is ________.

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Hemoglobin has a total of ________ protein chains in its quaternary structure.

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Anabolic steroids are appropriately prescribed to __________.

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The proper three-dimensional shape and folding of a protein is assisted by _________.

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The important cholesterol-based molecules are __________.

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The skeletal structure of palmitoleic acid is shown below. palmitoleic acid is a ________.

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Enzymes are produced only _________________________.

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When ethylamine dissolves in water, a solution of __________ is produced.

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If digestion is ________, then synthesis is ________.

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The _____ store(s) more carbon than the atmosphere. trees soil oceans rock

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The assembly of glucose molecules into polysaccharides is a(n) _____ process.

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Histones have a large number of ________ residues.

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Alcohol is metabolized by the_________

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Acids and bases denature a protein by disrupting ________.

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Glycerophospholipids can interact both with other lipids and water because they contain ________.

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Cooking oil and gasoline (a hydrocarbon) are not amphipathic molecules because they _____.

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Hydrogen bonding is ultimately due to differences in _____ between two atoms.

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For cells that communicate by electrical synapses, the message travels between cells via ________.

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During digestion, _____ emulsify(ies) lipids.

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Chylomicrons are released from enterocytes into the _____ for transport.

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The energy for the polymerization of nucleotides comes from____.

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Rotation about a carbon-carbon double bond does not readily occur because _________.

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Chymotrypsin catalyzes the hydrolysis of a peptide bond and is therefore categorized as a _____.

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Atoms with the same number of protons but with different electrical charges _____

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Chemoreceptors that monitor o2 and co2 content and ph are located in the _________.

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Guided by powerful signaling molecules, the human heart develops from __________.

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Because bile is not secreted into the duodenum with cirrhosis, stools are _____ colored.

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Complete the equation: monosaccharide + monosaccharide ? ______ + water

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Conventional genetic analyses of rrna sequences is not possible for prions because __________.

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The relation between amino acid and polypeptide is similar to the relation between ________.

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The formation of an enzyme-substrate complex is the ________ step in enzyme action.

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Sugars are molecules that have __________ c:h:o and are called __________.

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Maltose has a (1→4) linkage between glucose and ________.

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For a protein to be an integral membrane protein, it would have to be _____.

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For a molecule to have optical isomers, it must have _____.

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Biochemical tests _________________.

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An acid can denature a protein by ________.

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Much of the stability of the double-stranded dna structure is the result of ________.

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Most ______ have well defined 3' ends terminating in poly(a) tails of ~ 200 nucleotides.

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Healthy cells produce ________ in response to interferons.

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Prostaglandins are involved in _________.

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Evan and evelyn are twins but are not genetically identical. they are ________ twins.

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The redundancy of the genetic code is a consequence of ______.

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The membrane's permeability to sodium ions is at its maximum at label _____.

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Anomers of d-glucopyranose differ in their stereochemistry at ________.

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Enzymes that hydrolyze lipids are ________; substances that emulsify lipids are ________.

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The hormone __________ induces lipolysis, whereas the hormone __________ inhibits the process.

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Each specific amino acid has a unique ______.

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During the citric acid cycle, both nad and fad ________ a hydrogen atom and become ________.

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This figure is an example of a(n) _____.

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Fatty acid groups are referred to as ________ groups.

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Glycogen is to animal cells as ________ is to plant cells.

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In eukaryotes, the first step in the control of gene expression is ______.

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3 % nacl is _________________ to the elodea leaf.

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Cellulose is a polysaccharide with ______ linkages?

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The co2 produced in the pentose phosphate shunt comes from carbon number _____ of glucose.

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Centrifuges used for biohazardous materials must be covered primarily to avoid _____.

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Biochemistry is the study of _____

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A higher concentration of molecules causes a faster chemical reaction. this is known as _____.

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Sticky ends are produced as a result of the action of ______.

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__________ is always involved in hydrolysis reactions.

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The amphipathic property of phospholipids can be described as ________.

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The nucleotide sequence of a polynucleotide chain is called the ________ structure.

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Phosphofructokinase is allosterically _____ by high concentrations of _____.

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The stoichiometry of the atp synthase f0 base is ________.

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A lineweaver-burk plot is a _____.

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As water freezes ______.

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To make restriction fragments, a dna sample is treated with ______.

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Transgenic animals are currently used ______.

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Which of the following statements is false? saturated fats _____.

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The skeletal structure below is that of a ________.

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The melting temperature of dna ________ with increasing g plus c content.

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Side chains of amino acids _____.

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Poisons like cyanide bind to ________ and prevent electron transfer.

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Oils are generally ________ at room temperature and are obtained from ________.

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Myoglobin and a single chain of hemoglobin have similar ______ structures.

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Monosaccharide + monosaccharide → ______ + water

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Macromolecules, the molecules of life, include all of the following except __________.

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In the process of nitrification, nitrate reductase converts _____ into _____.

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In the peptide glviw, the c-terminal end is ________.

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In terms of energy storage, _______ is to animals what _______ is to plants.

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In living organisms, dna exists as a __________ with the strand(s) __________.

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In a hydrolysis reaction, __________, and in this process, water is __________.

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Fats are generally ________ at room temperature and are obtained from ________.

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Fat molecules do not ________.

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Eukaryotic initiation begins with the assembly of ________________.

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Enthalpy (h) is the _____.

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Denaturing gel electrophoresis separates proteins based on differences in _______.

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Compared to an uncatalyzed reaction, an enzyme-catalyzed reaction ________.

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Atoms from the amino acids _____ are utilized in purine biosynthesis.

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An extremely efficient enzyme has a _____ km and a _____ kcat.

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A peptide bond binds _____.

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______ is a steroid.

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