Examine the structures of macromolecules in appendix I. Which type has the most electrons to donate? Suggest why carbohydrates are usually the primary source of energy for bacteria that use organic molecules as energy sources?
To determine: The type of macromolecule that has the most electrons to donate.
Introduction: All living organisms have organic molecules and macromolecules. These may be carbohydrates, lipids, proteins or nucleic acids. Macromolecules are large molecules that are commonly formed by the polymerization of subunits.
Explanation of Solution
Carbohydrates consist of many carbon-hydrogen (C-H) and carbon-carbon (C-C) bonds. These bonds are the source of electrons. Thus, in comparison to other macromolecules such as proteins, lipids, and nucleic acid carbohydrates have more electrons to donate.
To determine: The reason that why carbohydrates are usually the primary source of energy for bacteria that use organic molecules as energy sources.
Introduction: All living organisms have organic molecules and macromolecules. These may be carbohydrates, lipids, proteins or nucleic acids. Macromolecules are large molecules that are commonly formed by the polymerization of subunits.
Explanation of Solution
Chemoautotrophic bacteria depend on organic sources such as sugar, fat, carbohydrate and proteins to obtain electrons and carbon. However, carbohydrates are the macromolecules that act as a large source of electrons. That is why they are used by bacteria as the primary source of energy for the cell.
Want to see more full solutions like this?
Chapter 10 Solutions
Prescott's Microbiology
- Investigate and create an infographic about how cassava can cause poisoning in our bodies. Here are your guide questions: 1) What are cyanoglycosides ? What are its natural sources? 2)What is present in the cassava that can affect the Electron transport system? Explain briefly the mechanism of action of this substance? 3) How does the poison affect the central nervous system and red blood cells? 4) What are the symptoms and possible remedy for this kind of poisoning? You have to support your report with information coming from books, or you can use sources coming from the internet, but make sure to get it from credible sites. You may also place pictures or illustrations in your report. Make the information simple, concise, and straight to the point. Do not forget to cite the references using the APA format.arrow_forwardd) Vitamin A is important for various metabolism. Can we take in vitamin A only in the form of retinoic acids? Explain why.arrow_forward1) Discuss recent findings on the effects of consumption of cholesterol and saturated, polyunsaturated, and monounsaturated fats. Give examples of each type of fat. 2) We often think only of DNA and RNA as nucleic acids. Discuss the role of other, less “well-known” nucleic acids, such as cAMP, cGMP, NADH, NADPH, and FADH. 3) Collagen is a very important structural protein in animals. Discuss the various parts of the body in which collagen is an important structural molecule and what its function is at each body location.arrow_forward
- Briefly discuss the ways in which microorganisms degrade and use common monosaccharides, disaccharides, and polysaccharides from both external and internal sources.arrow_forward4 10 11 12 13 14 15 16 17 18 19 20 21 QUESTION 15 Macromolecule Headgut Foregut Midgut Hindgut high levels of Carbohydrates oligosaccharides and polysaccharides high levels of disaccharides and some oligosaccharides ievels of disaccharides and and polysaccharides residual levels polysaccharides, low levels of oligosaccharides, high high levels of monosaccharides and residual levels of all other classes of carbohydrates monosaccharides large numbers of large large numbers of fat fat globules large numbers of emulsified fat droplets and high levels of free fatty residual levels of digestible ipids of acids, glycerol, phospholipids, and all classes sterols Lipids globules residual levels of proteins, high residual levels of proteins, low levels of proteins, highlevels of low motecular weight. levels of polypeptides Proteins high levels of proteins polypeptides and free amino acids polypeptides, and amino acids Click Save and Submit to savz and submit, Click Save All Answers to save all…arrow_forwardgive a detailed overview of how tryglycerides are metabolized under aerobic conditions. note the steps involved and the specific reactants and products of each step.arrow_forward
- Carbohydrates and lipids are composed of the same chemical element, but in different proportions. Both are used primarily as energy source for metabolic process. Which type of biomolecule has the higher calorie content per gram? Explain briefly.arrow_forwardWhat is mucilage? List (3) pharmaceutical uses of mucilage.arrow_forwardSelect lipid samples under triacylglycerol (one simple and one mixed), phospholipid, and cholesterol-derived metabolite. Show the structure and briefly describe the function or significance of each.arrow_forward
- Human Anatomy & Physiology (11th Edition)BiologyISBN:9780134580999Author:Elaine N. Marieb, Katja N. HoehnPublisher:PEARSONBiology 2eBiologyISBN:9781947172517Author:Matthew Douglas, Jung Choi, Mary Ann ClarkPublisher:OpenStaxAnatomy & PhysiologyBiologyISBN:9781259398629Author:McKinley, Michael P., O'loughlin, Valerie Dean, Bidle, Theresa StouterPublisher:Mcgraw Hill Education,
- Molecular Biology of the Cell (Sixth Edition)BiologyISBN:9780815344322Author:Bruce Alberts, Alexander D. Johnson, Julian Lewis, David Morgan, Martin Raff, Keith Roberts, Peter WalterPublisher:W. W. Norton & CompanyLaboratory Manual For Human Anatomy & PhysiologyBiologyISBN:9781260159363Author:Martin, Terry R., Prentice-craver, CynthiaPublisher:McGraw-Hill Publishing Co.Inquiry Into Life (16th Edition)BiologyISBN:9781260231700Author:Sylvia S. Mader, Michael WindelspechtPublisher:McGraw Hill Education