The first half of glycolysis is called investment phase or preparatory phase because a ATP is released to form a nearly symmetrical molecule. b ATP is released to trap glucose in the cell. c ATP is consumed to form G3P at the end of this phase d ATP is consumed to generate NADH at the end of this phase

The first half of glycolysis is called investment phase or preparatory phase because a ATP is released to form a nearly symmetrical molecule. b ATP is released to trap glucose in the cell. c ATP is consumed to form G3P at the end of this phase d ATP is consumed to generate NADH at the end of this phase

Concepts of Biology

1st Edition

ISBN:9781938168116

Author:Samantha Fowler, Rebecca Roush, James Wise

Publisher:Samantha Fowler, Rebecca Roush, James Wise

Chapter4: How Cells Obtain Energy

Section: Chapter Questions

Problem 8RQ: The glucose that enters the glycolysis pathway is split into two molecules of _____. a. ATP b....

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The cholesterol synthesized by cells uses which component of the glycolytic pathway as a starting point? a. glucose b. acetyl CoA c. pyruvate d. carbon dioxide
In the first stage of glycolysis, the hydroxyl group on C6 of glucose is phosphorylated to form glucose-6-phosphate (G6P). In this reaction, which of the following statements is true? a. O b. d. e. Glucose kinase is used to catalyze the reaction. Hexokinase is used to catalyze the reaction. A molecule of NADH is synthesized. One ATP is synthesized. Fructose kinase is used to catalyze the reaction.
In the conversion of G3P into pyruvate at the end of glycolysis, which of the following does NOT occur? electron carriers are reduced inorganic phosphate is added to the carbon structure substrate level phosphorylation resulting in ADP à ATP carbon is released as CO2
Which of the following events occurs during the energy-payoff phase of glycolysis? One carbon of a pyruvate molecule is oxidized to carbon dioxide. Oxaloacetate receives a two-carbon acetyl group from acetyl coenzyme A to form citrate. Substrate-level phosphorylation Oxidative Phosphorylation In which stage of aerobic cellular respiration are FADH2 molecules produced? Pyruvate Oxidation Glycolysis Krebs Cycle Electron Transport Which of the following events does not occur during pyruvate processing (pyruvate oxidation)? One carbon atom of each pyruvate is oxidized to carbon dioxide. NAD+ coenzyme is reduced to NADH. The remaining two carbon atoms of pyruvate (acetyl unit) reacts with coenzyme A to produce acetyl CoA. FAD coenzyme receives two hydrogen atoms to produce FADH2.
With regards to glycolysis, all of the following statements are FALSE except . a. glycolysis does not require oxygen o b. 4 net ATP are formed O c. 2 ATP gre formed in the energy payoff phase d. 1 ATP are used in the energy payoff phase e. glycolysis occurs in the mitochondria
In which step of glycolysis does each of the following occurs? second substrate-level phosphorylation reaction first ATP-consuming reaction third isomerization reaction use of NAD+ as an OA
The glycolysis reaction follows two step. The initiation requires the input of two ATP, which become converted to ADP but ADP is not a product in the net reaction for glycolysis. Why?
Which of the following is NOT true of glycolysis? Select one: a. The pathway requires two molecules of ATP to get started catabolizing each molecule of glucose b. ADP is phosphorylated to ATP c. The pathway converts two molecules of NADH to NAD+ for each molecule of glucose that enters d. The pathway does not require oxygen
Review the following statements and discuss whether each one is correct, incorrect or partially correct: Con In the presence of oxygen glycolysis can yield a net production of 6 molecules of ATP per molecule of glucose. In the presence of oxygen glycolysis can yield a net production of 8 molecules of ATP per molecule of glucose. In the absence of oxygen glycolysis can yield a net production of 2 molecules of ATP per molecule of glucose. In the absence of oxygen glycolysis can yield a net production of 4 molecules of ATP per molecule of glucose
The first step in the glycolysis pathway involves adding a phosphate group to glucose. The significance of this is: to directly produce the first ATP molecule to add negative groups to help keep glucose in the cell to convert glucose into an enzyme to prevent excess glucose from entering the cell all of these
The enzyme aldolase catalyzes the fourth step of glycolysis. This enzyme has a zinc ion (Zn2+) bound in its active site. This ion likely binds which of the amino acids?
The cell senses ATP is not being produced. What immediate effect will this have on the rate of glycolysis occurring in the cell? What will happen to the levels of pyruvate? A. Glycolytic rates will decrease: pyruvate levels will decrease B. Glycolytic rates will increase: pyruvate levels will increase C. Glycolytic rates will increase: pyruvate levels will decrease D. Glycolytic rates will decrease: pyruvate levels will increase 2. How will the cell shift its metabolic processes in response to the level of pyruvate and in order to produce ATP? A. It will shift from aerobic respiration to fermentation B. It will shift from aerobic respiration to anaerobic respiration C. It will continue with aerobic metabolism using oxygen in the cytosol to make ATP D. It will shift from anaerobic respiration to fermentation 3. Some of the symptoms the patient is experiencing are caused by acid-base imbalances in the extracellular fluid. Why would the patients blood become more acidic over a…

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a		ATP is released to form a nearly symmetrical molecule.
b		ATP is released to trap glucose in the cell.
c		ATP is consumed to form G3P at the end of this phase
d		ATP is consumed to generate NADH at the end of this phase