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Biochem Exam 1

Exam 1

QuestionAnswer
Energy conversion in living systems is required for what three types of work? osmotic work, chemical work, mechanical work
How do plants, fungi, and bacteria avoid the damaging effects of a hypotonic environment? They have rigid cells walls.
Eduard Buchner is considered the first modern biochemist because he proved that __________ are sufficient for alcoholic fermentation in the absence of live yeast - as long as a source of ___________ is provided. enzymes, sugar
Select the four TRUE statements below describing the standard free energy change (delta G) and the equilibrium constant (Keq). The equilibrium constant is the ratio of product and reactant concentrations at equilibrium. The equilibrium constant is equal to ratio of the concentration of reactants over products at equilibrium. The value for the standard free energy change is cons
The figure below shows two different transcription factors. Which one of the following statements describes these two proteins? Proteins with different structures can have similar functions.
Red blood cells are placed into a solution of unknown solute concentration. After an hour they have all burst open. The best explanation is that the solution _______________. had no solutes.
Pyruvate decarboxylase converts pyruvate into _______________. carbon dioxide and acetaldehyde.
For the reaction: A + B ↔ C + D, which of the following is correct? Keq = [C][D]/[A][B]
Limonene is a nonpolar molecule. The water molecules around it forms _______________. hydrogen bonds with itself and entropy decreases.
Given the energy charge equation below, if a biological system has an EC = 0.8, what is true about the concentrations of ATP, ADP, and AMP in the system? There is more ATP in the system than ADP or AMP.
Which THREE of the following biochemical relationships are correct statements illustrating the hierarchical organization of molecular life? Insects degrade organic materials on the forest floor and generate nitrogen compounds that are used by tree seedlings as nutrients.
Simple Sugars ribose
Fatty Acids palmitate
Nucleotides cytidine monophosphate
Amino Acids aspartate
Identify the THREE conditions in the list below that BEST describe low energy charge in a cell. High AMP concentrations.Low ATP concentrations.The energy charge ratio is below 0.70.
Which three molecules listed below are examples of biological polymers? DNA. alcohol dehydrogenase. monosaccharide. glycogen
Created by: ramirezlilly2
 

 



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