Question

Biology problems

Please answer all of these with details otherwise please 'do not answer any'

Question 1 4 pts CoH1206 + 602 ---> 6CO2 + 6H2O + Energy In the overall equation for cellular respiration above, it is clear that this reaction is A because energy is a product of this reaction which results in a B_AG. This suggests that this reaction will be c_within a biological system which means that it can occur on its own. In addition to the energetics, we are able to tell that entropy _D_as this reaction proceeds because there is more E in the products than in the reactants. During the course of this reaction, we observe the organic carbon molecules of glucose being broken apart into individual inorganic carbons of CO2 making this reaction an) Freaction. The energy released from the bonds is used to produce ATP and we see oxygen G_in this reaction as it forms water. In forming ATP, we will phosphorylate ADP in a reaction that requires an investment of at least 7.3 kcal/mol. This energy input requirement allows us to characterize the phosphorylation as a(n) H reaction. [Choose] [Choose Entropy Activation energy Hydrogen Spontaneous Positive Decreases Electrons Increases Heat Enthalpy Catabolic Oxidized Chaos Negative Potential energy Order Energized Free energy Endergonic [Choose] [Choose]

Answer 1

A - Catabolic, B - Negative, C - Spontaneous, D - Increases, E - chaos F - Oxidized , G - Energized, H - Endergonic.

• Cellular respiration is a catabolic reaction since glucose is broken down into simpler molecules.
• It is an exergonic reaction since there is release of energy.
• It is also an aerobic process since it occurs in the presence of oxygen (as shown in the equation).
• Exergonic reactions are spontaneous reactions. In these reactions, there is a decrease in enthalpy and there is an increase in entropy.
• In exergonic reactions, the free energy of reactant is greater than that of the product.
• The exergonic reactions move forward from a state of 'order' to a state of 'disorder' or 'chaos'.
• Endergonic reactions are non-spontaneous. They require an input of energy to proceed forward.
• Here ATP synthesis occurs by utilizing the energy released during cellular respiration.
• Therefore, ATP synthesis is endergonic reaction.