Biology Today and Tomorrow without Physiology (MindTap Course List)
5th Edition
ISBN: 9781305117396
Author: Cecie Starr, Christine Evers, Lisa Starr
Publisher: Cengage Learning
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Chapter 4, Problem 5CT
Summary Introduction
To explain: What gas will form when catalase combines two hydrogen peroxide molecules to make two molecules of water.
Concept introduction: Catalase is an enzyme of peroxisomes that has four tightly bound cofactors called hemes. A heme is a small organic compound with an iron atom at its center. Catalase substrate is hydrogen peroxide (H2O2) formed during normal
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Chapter 4 Solutions
Biology Today and Tomorrow without Physiology (MindTap Course List)
Ch. 4 - Figure 4.5 Energy inputs and outputs in chemical...Ch. 4 - Figure 4.10 Enzymes, temperature, and pH. Each...Ch. 4 - Prob. 3FIOCh. 4 - Prob. 4FIOCh. 4 - The genus Ferroplasma consists of a few species of...Ch. 4 - Prob. 2DIDCh. 4 - Prob. 3DIDCh. 4 - Prob. 1SQCh. 4 - Prob. 2SQCh. 4 - Prob. 3SQ
Ch. 4 - Prob. 4SQCh. 4 - Prob. 5SQCh. 4 - Prob. 6SQCh. 4 - Prob. 7SQCh. 4 - Prob. 8SQCh. 4 - Ions or molecules tend to diffuse from a region...Ch. 4 - Prob. 10SQCh. 4 - Prob. 11SQCh. 4 - Prob. 12SQCh. 4 - A transport protein requires ATP to pump sodium...Ch. 4 - Prob. 14SQCh. 4 - Prob. 15SQCh. 4 - Prob. 1CTCh. 4 - Water molecules tend to diffuse in response to...Ch. 4 - Dixie Bee wanted to make JELL-O shots for her next...Ch. 4 - The enzyme trypsin is sold as a dietary enzyme...Ch. 4 - Prob. 5CT
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- Which of the following are most commonly associated with creation of free-radicals? Select one: a. Carbon dioxide only b. Oxygen only c. Fatty acids only d. Carbon dioxide and Oxygen only e. Oxygen and fatty acids onlyarrow_forwardThe enzymes catalase combine two hydrogen peroxide molecules(H20+H2O) to make two molecules of water 2H2O). A gas forms. What is the gas and how do you know this?arrow_forwardThere are approximately 1022 molecules in a single medium-sized breath of air and approximately 1044 molecules in the atmosphere of the whole Earth. So how many breaths of air are there in the Earth’s atmosphere? How does this number compare with the number of molecules in a single breath?arrow_forward
- Why is oxygen when unbound to any other material can be toxic to life?arrow_forwardA chemist reported that carbon dioxide gas at −78 °C was kept in the laboratory. Which property of the gas did the chemist report? Length Mass Temperature or Volumearrow_forwardName an enzyme that acts on each molecule.(a) Amylose (b) Peroxide (c) DNAarrow_forward
- Heliox is a helium‑oxygen mixture that may be used in scuba tanks for divers working at great depths. It is also used medically as a breathing treatment. A 5.25 L tank holds helium gas at a pressure of 1734 psi. A second 5.25 L tank holds oxygen at a pressure of 461.0 psi. The two gases are mixed in a 5.25 L tank. If the temperature remains the same throughout the process, what is the pressure of the gas mixture in the tank? Assume ideal gas behavior.arrow_forwardLight Intensity 20 Temperature 25 Light Color = White Explain what happened to the dissolved oxygen over the course of 60 minutes. Why did this happen? In other words, what process caused the change that you see in DO?arrow_forwardWhy is carbon monoxide (CO) so dangerous?arrow_forward
- Tell whether the entropy of the following reactions will be negative, positive or zero. b) NaNO3 + H2O -> Na^+ + NO3^- c) 4H + O2 <-> 2 H2O d) 4HO2 <-> 2H2O + O2 a) Solid Carbon Dioxide <-> Gas Carbon Dioxidearrow_forwardWhy are certain bacteria hazardous to oxygen?arrow_forwardWhich of the following metal complexes are responsible for the reduction of molecular oxygen? Group of answer choices Fe(III)-Cu(II) complex Fe(III)-Cu(I) complex Fe(II)-Cu(II) complex Fe(II)-Cu(I) complex None of thesearrow_forward
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