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Biochemistry exam Practice Questions 2024 In a bacterial cell, the DNA is in the: A) cell envelope. B) cell membrane. C) nucleoid. D) nucleus. E) ribosomes. nucleoid A major change occurring in the evolution of eukaryotes from prokaryotes was the development of: A) DNA. B) photosynthetic capability. C) plasma membranes. D) ribosomes. E) the nucleus the nucleus In eukaryotes, the nucleus is enclosed by a double membrane called the: A) cell membrane. B) nuclear envelope. ...

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16 pages

Written in 2023/2024

Grade A+

JOHNSON22

Biochemistry random assessment test What is a metabolic pathway? Biochemical transformation of a molecule through a series of intermediates into the final product. What is the primary element in all biologically important molecules? Carbon. What are the four most common types of biochemical reactions? - oxidation - reduction - hydrolisis - condensation

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3 pages

Written in 2023/2024

Grade A+

JOHNSON22

Test Bank for Biochemistry, (4th Edition, by Donald Voet, Judith G. Voet) All Chapters Included

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193 pages

Written in 2025/2026

Grade A+

Smartpapers

Test Bank for Biochemistry, (4th Edition, by Donald Voet, Judith G. Voet) All Chapters Included

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193 pages

Written in 2025/2026

Grade A+

SmartExam

Test Bank for Biochemistry, (4th Edition, by Donald Voet, Judith G. Voet) All Chapters Included

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193 pages

Written in 2025/2026

Grade A+

Examcenter

Test bank for principles of biochemistry 5th edition by moran horton scrimgeour perry latest

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362 pages

Written in 2025/2026

Grade A+

Stuviahero01

Characteristics of Water Molecules - correct answer High BP, MP, FP Ice less dense than Liquid High Heat Capacty due to Hyrogen Bonds Dissociates easily Dipolar Name this molecule: H3O+ - correct answer Hydronium What is the significance Of the equilibrium constant - correct answer Extent of Dissociation K=[H+][A-]/[HA] Name the two most important buffer systems - correct answer ...

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14 pages

Written in 2024/2025

Grade A+

RealGrades

Hypertonic - correct answer Osmotic pressure outside of the cell is greater than inside the cell. Water moves outward and dehydrates the cells. Hypotonic - correct answer The osmotic pressure inside the cell is greater than outside the cell. Water moves into the cell and bloats it causing it to burst. Isotonic - correct answer Osmotic pressure is equal in and outside of the cell. Arr...

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9 pages

Written in 2024/2025

Grade A+

RealGrades

Glycolysis - correct answer glucose to pyruvate. 4 ATP, 2 NADH (anaerobic pathway) 1st step of glycolysis - correct answer phosphorylation of glucose to make glucose 6-phosphate (uses ATP) 2nd step of glycolysis - correct answer isomerization of glucose 6-phosphate to fructose 6-phosphate (reversible, moves the carbonyl from 1st carbon to 2nd carbon) 3rd step of glycolysis - correct ...

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8 pages

Written in 2024/2025

Grade A+

RealGrades

Atomic Weight - correct answer Average of mass of all isotopes Groups - correct answer down Periods - correct answer across Bigger shell number - correct answer More energy Increasing metalic character - correct answer left down increasing atomic size - correct answer left d...

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5 pages

Written in 2024/2025

Grade A+

RealGrades

Which of the following could cause structural changes in proteins? - correct answer The binding of a ligand or another protein. A change in the environmental pH. A mutation in the amino-acid sequence. Chemical modifications, e.g. phosphorylation. Which of the following are correct with regard to the myosin head? - correct answer It contains an actin binding site. It contains an ATP binding site. It possesses ATPase act...

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5 pages

Written in 2024/2025

Grade A+

RealGrades

Non-spontaneous process - correct answer has a deltaG>0 A decrease in disorder - correct answer results in the factor TdeltaS being positive A van't Hoff plot - correct answer is a good method to determine deltaH and deltaS Change in enthalpy (deltaH) is best defined as - correct answer the heat transferred at constant pressure If gas molec...

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5 pages

Written in 2024/2025

Grade A+

RealGrades

[H2O] - correct answer 55.5 M [H] and [OH] - correct answer 1.0 X 10^-7 M for pure water Kw - correct answer 1 X 10^-14 M^2 pH below pKa - correct answer proton is on pH above pKa - correct answer proton is off Amine Group pKa - correct answer 9.7 Carboxyl Group pKa - cor...

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3 pages

Written in 2024/2025

Grade A+

RealGrades

The following cellular component is characteristic of eukaryotic cells: - correct answer A. Nucleus (found in animal and plants) B. Ribosomes (found in both prokaryotic and eukaryotic cells, both animal and plants) C. Chloroplasts (found only in plants) D. Mitochondria (found in animal cells) E. More than one of these is characteristic of eukaryotic cells. - ANSWER A spontaneous process is one which occurs rapidly - correct answer ...

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3 pages

Written in 2024/2025

Grade A+

RealGrades

What did Linus Pauling predict? - correct answer The resulting electronic rearrangement of Fe (II) ion upon coordination to oxygen allows the iron to fit in the plane of the porphyrin ring Where is Fe located on the periodic table? - correct answer [Ar] 4s23d6 What is the electron configuration of Fe2+? - correct answer [Ar] 3d8 The tertiary structure of myoglobin is very similar to ...

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11 pages

Written in 2024/2025

Grade A+

RealGrades

The structure of DNA described by Watson and Crick included: a) a double helix b) the sugar-phosphate backbone aligned in the center of the helix c)the base pairs that are stacked on the inside of the double helix d) A and B e)A and C - correct answer A and C What gives proteins such a dominant role in biochemistry? - correct answer Their ability to spontaneously fold into complex three-dimensional structures. In hi...

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10 pages

Written in 2024/2025

Grade A+

RealGrades

Fatty acids are activated for β-oxidation by the transfer of - correct answer AMP from ATP What is the product of fatty acid activation? - correct answer acyl-CoA If an ATP synthase has 12 c subunits, how many protons must move through the enzyme to produce one ATP? - correct answer 4 Of the major lipoproteins, _____ are highest in cholesterol and cholesterol esters while _____ are ...

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5 pages

Written in 2024/2025

Grade A+

RealGrades

What are the 3 most abundant atoms in humans? - correct answer Hydrogen, Oxygen and carbon Four major classes of biomolecules - correct answer proteins, nucleic acids, lipids, carbohydrates what are proteins? - correct answer polymers of amino acids functions of proteins - correct answer 1. signaling/receptors 2. structural (microfilaments) 3. mo...

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11 pages

Written in 2024/2025

Grade A+

RealGrades

rough endoplasmic reticulum - correct answer site of protein synthesis and packaging lysosomes - correct answer digest molecules or old cell parts vacuoles - correct answer store nutrients and ions chloroplast - correct answer site of photosynthesis nucleus - correct answer stores genetic info mitochondria - ...

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5 pages

Written in 2024/2025

Grade A+

RealGrades

spontaneous, exergonic - correct answer what are the traits of a reaction when delta G is less than zero? lipids - correct answer Of the four major types of biological molecules, which only exists as a monomer (does not link to form polymers)? - amino acids - carbohydrates - nucleotides - lipids - correct answer name the 4 major biological molecules - amino group - carboxylic aci...

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5 pages

Written in 2024/2025

Grade A+

RealGrades

What is/are a/some possible repercussion(s) of a malfunction in the binding ability of a GroES cap? A) no conformational change in the cis ring B) Associated and binding of incorrect hydrophobic domains within an unfolded protein C) aggregation of proteins after translation D) A and C E) All of the above - correct answer All of the above Which of the following amino acids is not considered to be charged polar? A) Arginine B) Proline C) Lysine D)...

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15 pages

Written in 2024/2025

Grade A+

RealGrades

Given the following peptide: Gly-Gln-Ser-Lys-Phe-Glu, which amino acid is at the C terminal? - correct answer Glutamate Characteristics of a non-spontaneous reaction - correct answer has a positive delta G and can be driven forward by coupling to a spontaneous reaction Why do nonpolar molecules aggregate in aqueous solution - correct answer - delta s is more favorable when the nonpolar ...

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20 pages

Written in 2024/2025

Grade A+

RealGrades