Bio chapter 8
Which of the following best describes enthalpy
The heat content of a chemical system
Which of the following statements about the combustion of glucose with oxygen to form water and carbon dioxide is correct
The entropy of the products is greater than the entropy of the reactants
The process of cellular respiration, which converts simple sugars such as glucose into CO2 and water is an example of
The first second and third choices are corrext
A chemical reaction that has a positive G is correctly described as
Endergonic
Which of the following statements about equilibrium of chemical reactions is correct
A reaction that is at equilibrium is not capable of doing any work
How can one increase the rate of a chemical reaction
Add a catalyst
Sucrose is a disaccharide composed of the monosaccharides glucose and fructose. The hydrolysis of sucrose by the enzyme sucrose results in
Breaking the bond between glucose and fructose and forming new bonds from the atoms of water
Increasing the substrate concentration is an enzymatic reaction could overcome which of the following
Competitive inhibition
What term is used to describe the transfer of free energy from catabolic pathways to anabolic pathways
Energy coupling
Which of the following statements about enzymes is true
Enzymes increase the rate of a reaction
Which of the following is true of enzymes
Enzymes increase the rate of chemical reaction by lowering activation energy barriers
Energy is observed in two basic forms: potential and kinetic. Which of the following correctly matches these forms with a source of energy
The covalent bonds of a sugar molecule-- potential energy
Which of the following statements about ATP is correct
The cycling between ATP and ADP+Pi provides an energy coupling between catabolic and anabolic pathways
According to the induced fit hypothesis of enzyme catalysis, which of the following is corrext
The binding of the substrate changes the shape of the enzyme's active site
Which of the following statements is true about enzyme-catalyzed reactions
The reaction is faster than the same reaction in the absence of the enzyme
What must be the difference between the structure of ATP and the structure of the precursor of the A nucleotide in DNA and RNA
There is no difference
