Domanda del libro di testo
What type of microorganism has a chitin cell wall, has DNA that is contained in a nucleus, and has ergosterol in its plasma membrane?
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Ch. 2 - Chemical Principles
Tortora14th EditionMicrobiology: An IntroductionISBN: 9780138200398
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TOC.tableOfContents
- Ch. 1 - The Microbial World and You18
- Ch. 2 - Chemical Principles20
- Ch. 3 - Observing Microorganisms Through a Microscope18
- Ch. 7 - The Control of Microbial Growth20
- Ch. 9 - Biotechnology & DNA Technology20
- Ch. 10 - Classification of Microorganisms15
- Ch. 11 - The Prokaryotes: Domains Bacteria and Archaea14
- Ch. 12 - The Eukaryotes: Fungi, Algae, Protozoa, and Helminths17
- Ch. 13 - Viruses, Viroids, and Prions20
- Ch. 14 - Principles of Disease and Epidemiology21
- Ch. 15 - Microbial Mechanisms of Pathogenicity19
- Ch. 16 - Innate Immunity: Nonspecific Defenses of the Host20
- Ch. 17 - Adaptive Immunity: Specific Defenses of the Host20
- Ch. 18 - Practical Applications of Immunology20
- Ch. 19 - Disorders Associated with the Immune System19
- Ch. 20 - Antimicrobial Drugs19
- Ch. 21 - Microbial Diseases of the Skin and Eyes21
- Ch. 22 - Microbial Diseases of the Nervous System19
- Ch. 23 - Microbial Diseases of the Cardiovascular and Lymphatic Systems20
- Ch. 24 - Microbial Diseases of the Respiratory System20
- Ch. 25 - Microbial Diseases of the Digestive System20
- Ch. 26 - Microbial Diseases of the Urinary and Reproductive Systems19
- Ch. 27 - Environmental Microbiology20
- Ch. 28 - Applied and Industrial Microbiology19
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Capitolo 2, Problema 9
Draw a simple lipid, and show how it could be modified to a phospholipid.
Guida verificata passo dopo passo1
Step 1: Begin by drawing a simple lipid, which typically consists of a glycerol backbone attached to three fatty acid chains. Represent the glycerol as a three-carbon molecule, with each carbon connected to a fatty acid chain via an ester bond.
Step 2: To modify this simple lipid into a phospholipid, replace one of the fatty acid chains with a phosphate group. This means that instead of three fatty acids, the glycerol backbone will have two fatty acids and one phosphate group attached.
Step 3: Draw the phosphate group attached to the third carbon of the glycerol backbone. The phosphate group is often represented as a phosphorus atom bonded to four oxygen atoms, one of which connects to the glycerol.
Step 4: Optionally, add a polar head group attached to the phosphate group, such as choline, serine, or ethanolamine. This head group gives the phospholipid its amphipathic properties, with a hydrophilic (water-attracting) head and hydrophobic (water-repelling) tails.
Step 5: Label the hydrophobic fatty acid tails and the hydrophilic phosphate head group to emphasize the structural difference between a simple lipid (triacylglycerol) and a phospholipid.
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Structure of Simple Lipids
Simple lipids, such as triglycerides, consist of a glycerol backbone bonded to three fatty acid chains. These hydrophobic molecules serve primarily as energy storage and are nonpolar, lacking any charged groups.
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04:19
Lipids
Phospholipid Composition
Phospholipids are modified lipids where one fatty acid in a triglyceride is replaced by a phosphate group linked to a polar head. This amphipathic structure has a hydrophilic (water-attracting) head and hydrophobic tails, essential for forming cell membranes.
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04:05Phospholipids
Modification from Simple Lipid to Phospholipid
To convert a simple lipid into a phospholipid, one fatty acid chain is removed and replaced with a phosphate group attached to an additional polar molecule. This modification imparts polarity, enabling the molecule to form bilayers critical for membrane structure.
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04:05Phospholipids
Pratica correlata
Domanda del libro di testo
Classify each of the molecules on the left as an acid, base, or salt. The dissociation products of the molecules are shown to help you.
HNO3 → H+ + NO⁻3
a. Acid
b. Base
c. Salt
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Domanda del libro di testo
Classify each of the molecules on the left as an acid, base, or salt. The dissociation products of the molecules are shown to help you.
H2SO4 → 2H+ + SO42⁻
a. Acid
b. Base
c. Salt
801
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Domanda del libro di testo
Classify each of the molecules on the left as an acid, base, or salt. The dissociation products of the molecules are shown to help you.
MgSO4 → Mg2+ + SO42⁻
a. Acid
b. Base
c. Salt
821
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Domanda del libro di testo
The following diagram shows the bacteriorhodopsin protein. Indicate the regions of primary, secondary, and tertiary structure. Does this protein have quaternary structure?
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Domanda del libro di testo
Classify each of the molecules on the left as an acid, base, or salt. The dissociation products of the molecules are shown to help you.
NaOH → Na⁺ + OH⁻
a. Acid
b. Base
c. Salt
793
views