Quiz review

Energy ______

• only exists in form of heat

• cannot be transferred

• is constantly increasing

• can neither be created nor destroyed

ATP hydrolysis releases energy because ___

• water is used

• its bonds contain alot of energy

• it is insoluble in water

• releivs repulsion of close negative charges

Reactant must absorb __ in order for a chemical reaction to begin

• atp

• entropy

• activation energy

• electrons

an exergonic reaction __ energy

• requires

• involves no

• releases

• twerks

AN exergonic reaction has a __ change in free energy (

• negative

• postive

• negligible

atp hydrolysis powers endergonic reactions by

• releasing electrons

• lowering the energy level of the reactants

• breaking a water molecule

• transferring a phosphate group to the reactant

Which of the following statements is true regarding photosynthesis?

• Carbon dioxide is oxidized to form a carbohydrate

• Water loses electrons and releases oxygen

• oxygen is oxidized and forms water

• A carbohydrate is reduced and releases carbon dioxide

The citric acid cycle ___>

• yield the most ATP of all the stages of Aerobic Resipiration

• generates acetyl-CoA

• produces FADH2

• occurs in the cytosol of the cell

The light reactions of photosynthesis provide the Calvin cycle with _____.

• CO₂ and ATP

• ATP and NADPH

• light energy

• 
  

  O₂ and NADPH

In a reduction, a molecule _____.

• 
  

  undergoes a decline in its free energy

• 
  

  moves down its concentration gradient

• gains electrons

• 
  

  decreases in mass