14.An ________ chemical reaction releases energy, whereas an ________ reaction requires an input of energy. Group...
14.An ________ chemical reaction releases energy, whereas an ________ reaction requires an input of energy.
Group of answer choices
exergonic; endergonic
endergonic; exergonic
enzymatic; endergonic
endergonic; enzymatic
equilibrium; exergonic
15.
Where does the O2 released during photosynthesis come from?
Group of answer choices
CO2
H2O
ATP
C6H12O6
RuBP
20.
What happens during chemiosmosis?
Group of answer choices
glucose is broken down into 2 molecules of pyruvate
H+ ions diffuse back into the matrix and are used to form ATP
NADH and FADH2 are produced
Oxygen gas is formed
CO2 is released from the breakdown of acetyl-CoA
22.In exergonic chemical reactions:
Group of answer choices
the reactants have more energy than the products.
energy is stored by the reactions.
the reactants have less energy than the products.
the reactants and products possess equal amounts of energy.
Homework Answers
14.a. exergonic release energy and endergonic absorb energy
15.H2O
With the help of light energy H2O splits into H+ and O2
20. H+ IOns move back to matrix and are used to form ATP
22.a
Reactants have more energy than products which is released in exergonic reactions
Add Answer to:
14.An ________ chemical reaction releases energy, whereas an
________ reaction requires an input of energy.
Group...
) the system's entropy D) the cell's energy equilibrium E) the heat content of a chemical...
) the system's entropy D) the cell's energy equilibrium E) the heat content of a chemical system In the presence of oxygen, the three-carbon however, the pyruvate (1) loses a carbon, which is given off as a m compound called acetate, and (3) is bonded to coenzyme A. compound pyruvate can be catabolized in the citric acid cycle. First, olecule of CO2, (2) is oxidized to form a two-carbon 10) These three steps result in the formation of 10) A)...
1. Which one of the following shows the correct sequence of energy transitions during chemiosmosis? A....
1. Which one of the following shows the correct sequence of energy transitions during chemiosmosis? A. NADH → electron acceptors → proton gradient → ATP synthase → ATP B. NADH → NAD+ → FADH2 → electron acceptors → ATP C. carbohydrates → acetyl CoA → CO2 → proton gradient → ATP D. NAD+ → NADH → protons → ADP → ATP E. glucose → pyruvate → acetyl CoA → NADH → ATP 2. Facultative anaerobes: A. prefer carbon dioxide. B....
1. Which one of the following shows the correct sequence of energy transitions during chemiosmosis? A. NADH → electron acceptors → proton gradient → ATP synthase → ATP B. NADH → NAD+ → FADH2 → electro...
1. Which one of the following shows the correct sequence of energy transitions during chemiosmosis? A. NADH → electron acceptors → proton gradient → ATP synthase → ATP B. NADH → NAD+ → FADH2 → electron acceptors → ATP C. carbohydrates → acetyl CoA → CO2 → proton gradient → ATP D. NAD+ → NADH → protons → ADP → ATP E. glucose → pyruvate → acetyl CoA → NADH → ATP 2. Facultative anaerobes: A. prefer carbon dioxide. B....
Match the term to the correct description. Choices may only be used once. Group of...
Match the term to the correct description. Choices may only be used once. Group of answer choices [ Choose ] An inhibitor molecule binds to the active site. Part of an enzyme where the substrate binds to Protein molecules that function as biological catalysts An inhibitor molecule binds to an allosteric site and prevents the substrate from binding to the active site. A substance...
What is the reducing agent (or electron donor) in the following reaction? Pyruvate + NADH +...
What is the reducing agent (or electron donor) in the following reaction? Pyruvate + NADH + H^+ rightarrow Lactate + NAD^+ A. oxygen B. NADH+H^+ C. NAD^+ D. lactate E. pyruvate Reactants capable of interacting to form products in a chemical reaction must first overcome a thermodynamic barrier known as the reaction's A. entropy B. heat content. C. activation energy. D. endothermic level. E. free-energy content. What does the chemiosmotic process in mitochondria involve? A. establishment of a proton gradient...
1.A How is the light reaction and dark reaction of photosynthesis related? The products of the...
1.A How is the light reaction and dark reaction of photosynthesis related? The products of the light reactions are used in the dark reactions O They are not related The products of the dark reactions are used in the light reactions The products of the dark reactions must be present for the light reactions to take place B. Which of the following processes of cellular respiration is CO2 released? Select all that are correct. chemiosmosis glycolysis citric acid cycle electron...
13. Describe 2 mechanisms whereby ATP is generated during cellular respiration Mechanism 1: Mechanism 2: 14....
13. Describe 2 mechanisms whereby ATP is generated during cellular respiration Mechanism 1: Mechanism 2: 14. Indicate the MAIN molecules that enter and exit each of these processes? Molecule(s) IN Process Molecule(s) OUT Glycolysis Pyruvate Oxidation Citric Acid/Krebs Cycle ETC Photophosphorylation Calvin Cycle 15. Isocitrate is a 6 carbon molecule that is oxidized to a-ketoglutarate (a 5 carbon molecule) by the enzyme isocitrate dehydrogenase. What happens to the extra carbon atom in this reaction and in which process (listed in...
13) When a molecule of glucose gets split during the energy investment phase of glycolysis, the...
13) When a molecule of glucose gets split during the energy investment phase of glycolysis, the products are two molecules of that then move to the energy payoff phase. A) Glyceraldehyde-3-phospahte B) Pyruvate C) Acetyl-COA D) NADH 14) Following glycolysis and the citric acid cycle, but before the electron transport chain and oxidative phosphorylation, the carbon skeleton of glucose has been broken down to CO2 with some net gain of ATP. Most of the energy from the original glucose molecule...
FOR BIOCHEMISTRY: 1. The end products of glycolysis are all except ______________ NADH citrate pyruvate Acetyl...
FOR BIOCHEMISTRY: 1. The end products of glycolysis are all except ______________ NADH citrate pyruvate Acetyl CoA 2. What substance is produced by the oxidation of pyruvate and feeds into the citric acid cycle? glucose Acetyl CoA O2 CO2 3. Pyruvate can only oxidize in a presence of oxygen true false 4. Which of the following is Uncharacteristic of ATP? It is formed by attaching a phosphate group to ADP with a high-energy bond When dephosphorylated, ATP becomes ADP It...
7) Why do hydrolysis reactions occur more readily in solution than dehydration reactions? A) Hydrolysis reactions...
7) Why do hydrolysis reactions occur more readily in solution than dehydration reactions? A) Hydrolysis reactions increase G, or Gibbs free energy of the system, B) Hydrolysis reactions are endergonic and increase entropy of the system. C) Hydrolysis reactions are exergonic and decrease entropy of the system. D) Hydrolysis reactions are exergonic and increase entropy of the system. 8) How do cells use the ATP cycle illustrated in the figure? AAA W A) Cells use the cycle to recycle ADP...
) the system's entropy D) the cell's energy equilibrium E) the heat content of a chemical system In the presence of oxygen, the three-carbon however, the pyruvate (1) loses a carbon, which is given off as a m compound called acetate, and (3) is bonded to coenzyme A. compound pyruvate can be catabolized in the citric acid cycle. First, olecule of CO2, (2) is oxidized to form a two-carbon 10) These three steps result in the formation of 10) A)...
What is the reducing agent (or electron donor) in the following reaction? Pyruvate + NADH + H^+ rightarrow Lactate + NAD^+ A. oxygen B. NADH+H^+ C. NAD^+ D. lactate E. pyruvate Reactants capable of interacting to form products in a chemical reaction must first overcome a thermodynamic barrier known as the reaction's A. entropy B. heat content. C. activation energy. D. endothermic level. E. free-energy content. What does the chemiosmotic process in mitochondria involve? A. establishment of a proton gradient...
1.A How is the light reaction and dark reaction of photosynthesis related? The products of the light reactions are used in the dark reactions O They are not related The products of the dark reactions are used in the light reactions The products of the dark reactions must be present for the light reactions to take place B. Which of the following processes of cellular respiration is CO2 released? Select all that are correct. chemiosmosis glycolysis citric acid cycle electron...
13. Describe 2 mechanisms whereby ATP is generated during cellular respiration Mechanism 1: Mechanism 2: 14. Indicate the MAIN molecules that enter and exit each of these processes? Molecule(s) IN Process Molecule(s) OUT Glycolysis Pyruvate Oxidation Citric Acid/Krebs Cycle ETC Photophosphorylation Calvin Cycle 15. Isocitrate is a 6 carbon molecule that is oxidized to a-ketoglutarate (a 5 carbon molecule) by the enzyme isocitrate dehydrogenase. What happens to the extra carbon atom in this reaction and in which process (listed in...
13) When a molecule of glucose gets split during the energy investment phase of glycolysis, the products are two molecules of that then move to the energy payoff phase. A) Glyceraldehyde-3-phospahte B) Pyruvate C) Acetyl-COA D) NADH 14) Following glycolysis and the citric acid cycle, but before the electron transport chain and oxidative phosphorylation, the carbon skeleton of glucose has been broken down to CO2 with some net gain of ATP. Most of the energy from the original glucose molecule...
7) Why do hydrolysis reactions occur more readily in solution than dehydration reactions? A) Hydrolysis reactions increase G, or Gibbs free energy of the system, B) Hydrolysis reactions are endergonic and increase entropy of the system. C) Hydrolysis reactions are exergonic and decrease entropy of the system. D) Hydrolysis reactions are exergonic and increase entropy of the system. 8) How do cells use the ATP cycle illustrated in the figure? AAA W A) Cells use the cycle to recycle ADP...
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