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Homework answers / question archive / California State University, Northridge BIO 101 Chapter 6 1)Which of the following lowers the activation energy of a biochemical reaction?   An                        chemical reaction releases energy, whereas an                                      reaction requires an input of energy

California State University, Northridge BIO 101 Chapter 6 1)Which of the following lowers the activation energy of a biochemical reaction?   An                        chemical reaction releases energy, whereas an                                      reaction requires an input of energy

Biology

California State University, Northridge

BIO 101

Chapter 6

1)Which of the following lowers the activation energy of a biochemical reaction?

 

  1. An                        chemical reaction releases energy, whereas an                                     

reaction requires an input of energy.

 

  1. Which of the following expresses the idea of low potential energy?

 

  1. The common energy carrier molecule in cells is:

 

  1. Which of the following could be accomplished by a catalyst?

 

  1. Which of these can affect the rate of an enzymatic reaction?

 

 

  1. Molecular motions are minimized at:

 

  1. Certain vitamins, such as niacin, act as                                             in enzyme-catalyzed reactions.

 

  1. Which of the following has the greatest amount of kinetic energy?

 

 

  1. Why is photosynthesis a coupled reaction, overall?
  2. In exergonic chemical reactions:
  3. The reactant in an enzyme-catalyzed reaction is called the:
  4. Match each term with its best definition

Linked biochemical reactions in a cell –

This takes place at the active site of an enzyme –Enzyme activity controlled by binding of substance to a regulatory site –

  1. Match each word with its best definition

Energy of movement (like a diving penguin) –Energy in the bonds of molecules (like glucose) –Causing an object to move by the transfer of energy –

  1. When a biochemical product can reduce the activity of an enzyme earlier in a metabolic pathway, it is an example of                                                                                                    .
  2. Match each statement with a law of thermodynamics

Energy cannot be created from nothing –

 

When you drive a car, some of the energy in the gas is converted to heat rather than useful work –

Energy cannot be destroyed –

No energy conversion process is 100% efficient –

When energy is converted from one form to another, the amount of "useful" energy decreases –

Energy in chemical reactions is conserved –

  1. Energy that is not stored or used for work on a system becomes:
  2. Which of these would represent an INCREASE in entropy of a system? (check all that apply)

 19 Match each reaction with its type

Glucose breakdown –

ATP --> ADP + Phosphate –

Reaction of carbon monoxide with oxygen in a car's catalytic converter –

Protein synthesis – , Photosynthesis –

20 Why doesn't glucose burst into flames spontaneously?

21 Match each term with its best description

Conversion of reactants to products –Net release of energy –

Net input of energy –

 

 

 

 

 

 

 

 

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