Concept explainers
To review:
The given blank space in the statement, “The complete breakdown of glucose in the presence of oxygen occurs in two major stages: ______ and _______. The first of these stages occurs in the _________ of the cell, and the second stage occurs in organelles called ________. Conditions in which oxygen is present are described as _________.”
Introduction:
Glucose is an essential energy source for most organisms. Breakdown of glucose can occur either in conditions in which oxygen is present or conditions in which the oxygen is absent. When the breakdown of glucose occurs in conditions when oxygen is present, then it occurs in two major steps.
Explanation of Solution
In the stages of glucose breakdown, the first step is known as glycolysis. The second step or stage is called
Cellular respiration occurs as the second stage of glucose breakdown and it occurs in the mitochondria. In this stage, the pyruvate molecules made during glycolysis are broken down into water molecules and carbon dioxide. The conditions, in which there is the presence of oxygen are called aerobic condition.
The complete breakdown of glucose in the presence of oxygen occurs in two major stages: glycolysis and cellular respiration. The first of these stages occur in the cytosol of the cell, and the second stage occurs in organelles called mitochondria. Conditions in which oxygen is present are described as aerobic conditions.”
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Chapter 8 Solutions
Biology: Life on Earth
- Glycolysis results in the production of two ________ molecules from a single molecule of glucose. In the absence of ________, the end product of glycolysis is ________. acetyl CoA, pyruvate, lactate ATP, carbon, pyruvate pyruvate, oxygen, lactate pyruvate, carbon, acetyl CoAarrow_forwardEach ATP molecule contains about 1% of the amount of chemical energy available from the complete oxidation of a single glucose molecule. Cellular respiration produces about 38 ATP from one glucose molecule. What happens to the rest of the energy in glucose? It is stored as fat. It is converted to heat. It is used to make water from hydrogen ions and oxygen. It is released as carbon dioxide and water It is converted to starch.arrow_forwardSometimes, ATP is referred to as the “energy-storage molecule.” The cell does not actually store energy as a lot of extra ATP but as glycogen or triacylglycerides. Why do you suppose this is the case?arrow_forward
- Glycolysis, which can occur in all living cells, correctly occurs in the cell structure _____, and the products that result respectively are Select one: a. mitochondria: 2 ATP, pyruvate, NADH b. cytoplasm: 2 ATP, pyruvate, NADH c. cytoplasm: 36 ATP, CO2, H2O d. mitochondria: 36 ATP, CO2, H2Oarrow_forwardMatch the definition with one of the choices (can be used more than once) Group of answer choices A. The largest amount of ATP is generated during? [ Choose ] : Oxygen Electron Transport Mitochondria Glycolysis Citric Acid (or Kreb's) Cycle B. An aerobic pathway way requires this? [ Choose ] : Oxygen Electron Transport Mitochondria Glycolysis Citric Acid (or Kreb's) Cycle C. This step in cellular respiration occurs outside the mitochondria? [ Choose ] : Oxygen Electron Transport Mitochondria Glycolysis Citric Acid (or Kreb's) Cycle D. The primary site for cellular respiration? [ Choose ] : Oxygen Electron Transport Mitochondria Glycolysis Citric Acid (or…arrow_forwardThe bodies of humans and other mammals store triglycerides in two kinds of tissue, which are called white and brown fat. The main function of white fat is to store triglycerides for energy. Brown tissue has more mitochondria than white tissue, and these are used to generate body heat in an unusual process. Mitochondria in brown fat make thermogenin, a protein that uncouples ATP synthesis from mitochondrial electron transfer chains. Thermogenin is a transport protein that allows hydrogen ions to move directly across the inner mitochondrial membrane instead of through ATP synthase. Since ATP synthase isn't activated, these "leaky" membranes produce less ATP. However, electrons still pass through electron transfer chains, and this process generates heat. In 2015, Daniele Barbato and his colleagues investigated the effect of a high-fat diet on brown fat mitochondrial function in mice. They maintained an experimental group of mice on a high-fat diet (HFD, 60% fat), and a control group…arrow_forward
- High energy electrons move through the electron transport chain of the mitochondria and the chemical energy held in these electrons is used to pump hydroxide ions into the intermembrane space make molecules like protein, carbohydrates, and lipids pump electrons into the intermembrane space pump hydrogen ions into the intermembrane spacearrow_forwardCancer cells grow so rapidly that they have a higher rate of anaerobic metabolism than most body tissues, especially at the center of a tumor. Can you use drugs that poison the enzymes of anaerobic metabolism in the treatment of cancer? Why, or why notarrow_forwardIn aerobic cellular respiration, which generates more ATP, substrate-level phosphorylation or oxidative-level phosphorylation? 1. substrate-level phosphorylation 2. oxidative-level phosphorylation 3. both generate the same amount of ATP 4. neither generates any ATP .arrow_forward
- During the aerobic cellular respiration, where do ATP molecules form? a. Cytosol only b. Cytosol and mitochondria only c. Cytosol, mitochondria and ribosomes only d. Mitochondrial matrix and inner mitochondrial membrane onlyarrow_forwardContrast, in terms of ATP production, the oxidation of glucose to ethanol with the oxidation of glucose to oxaloacetate. How many ATP molecules are produced for each process? glucose to ethanol: ____ ATP molecule(s) glucose to oxaloacetate: _____ ATP molecule(s) Please answer very soon will give rating surelyarrow_forwardWhich of the following statement about ATP formation in Glycolysis is True? a. Four ATP molecules are used in the Glycolysis of one molecule of Glucose b. Three ATP molecules are formed in the Glycolysis of one molecule of Glucose c. Two ATP molecules are used in the Glycolysis of one molecule of Glucose d. Two ATP molecules are formed in the Glycolysis of one molecule of Glucosearrow_forward
- Anatomy & PhysiologyBiologyISBN:9781938168130Author:Kelly A. Young, James A. Wise, Peter DeSaix, Dean H. Kruse, Brandon Poe, Eddie Johnson, Jody E. Johnson, Oksana Korol, J. Gordon Betts, Mark WomblePublisher:OpenStax CollegeHuman Physiology: From Cells to Systems (MindTap ...BiologyISBN:9781285866932Author:Lauralee SherwoodPublisher:Cengage Learning