Answered: The molecule in the food we eat contain…

Human Anatomy & Physiology (11th Edition)

11th Edition

ISBN:9780134580999

Author:Elaine N. Marieb, Katja N. Hoehn

Publisher:Elaine N. Marieb, Katja N. Hoehn

Chapter1: The Human Body: An Orientation

Section: Chapter Questions

Problem 1RQ: The correct sequence of levels forming the structural hierarchy is A. (a) organ, organ system,...

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1. The molecule in the food we eat contain substances stored in chemical bonds. Which statement BEST explains how this energy is released? A. Cells extract and capture the energy in food molecules all at once, then store it for later use B. Chemical bonds in food molecules are broken, releasing energy and allowing cells to use the energy to make ATP. C. Cells burn food molecules, releasing energy as heat that powers movement while keeping the body at the correct temperature. 2. A student prepared a test tube containing yeast, glucose, and water. After 24 hours, the test tube was analyzed for the presence of several substances. What substance would the student expect to find if respiration occurred in the test tube? A. Carbon Dioxide B. Nitrogen C. Starch 3. Jose and Rema are making sourdough bread. They have been feeding the starter dough for a week now, and it has undergone lactic acid fermentation. They mix the dough and add a portion of the starter, which will give the bread its famous texture and sour flavor. A. Alcoholic fermentation takes place, and the yeast give off oxygen, creating pockets in the dough. B. Alcoholic fermentation takes place and ethyl alcohol and CO2 gas are formed, creating pockets in the dough. C. Alcoholic fermentation takes place, and the H2O byproduct of the electron transport chain vaporizes to create pockets in the dough. 4. Which material is needed for cellular respiration to happen? A. Carbon dioxide B. Glucose C. Water 5. Where does cellular respiration takes place? A. Chlorophyll B. Mitochondria C. Nucleus 6. Xavier and Jill are practicing the 100-meter sprint. Which statement BEST describes the metabolic pathways their muscles will utilize to produce the quick energy needed for this intense anaerobic exercise? A. The pyruvic acid from glycolysis enters the mitochondria and is broken down in the Krebs cycle B. Glycolysis begins glucose metabolism, and in the absence of oxygen, lactic acid fermentation takes over. C. Glucose is converted to pyruvic acid, followed by the aerobic pathways of the Krebs cycle and the electron transport chain 7. Which is broken down during cellular respiration to release energy? A. ADP B. Food Molecules C. Water 8. What metabolic stage is part of both cellular respiration and fermentation? A. Electron transport B. Glycolysis C. Krebs cycle 9. What is the net gain of ATP molecules produced directly by glycolysis? A. 2 B. 4 C. 6 10. What are the waste products of cellular respiration? A. ATP and ADP B. Carbon dioxide and water C. Energy and glucose

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