Domanda del libro di testo
Indicate which statements are true. Correct all false statements by changing the underlined words.
__________ Rubor, calor, swelling, and dolor are associated with fever.
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Ch. 15 - Innate Immunity
Bauman6th EditionMicrobiology with Diseases by TaxonomyISBN: 9780134832302
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TOC.tableOfContents
- Ch. 1 - A Brief History of Microbiology31
- Ch. 2 - The Chemistry of Microbiology28
- Ch. 3 - Cell Structure and Function39
- Ch. 4 - Microscopy, Staining, and Classification25
- Ch. 5 - Microbial Metabolism51
- Ch. 6 - Microbial Nutrition and Growth37
- Ch. 7 - Microbial Genetics51
- Ch. 8 - Recombinant DNA Technology21
- Ch. 9 - Controlling Microbial Growth in the Environment36
- Ch. 10 - Controlling Microbial Growth in the Body: Antimicrobial Drugs21
- Ch. 11 - Characterizing and Classifying Prokaryotes29
- Ch. 12 - Characterizing and Classifying Eukaryotes34
- Ch. 13 - Characterizing and Classifying Viruses, Viroids, and Prions23
- Ch. 14 - Infection, Infectious Diseases, and Epidemiology35
- Ch. 15 - Innate Immunity34
- Ch. 16 - Adaptive Immunity21
- Ch. 17 - Immunization and Immune Testing29
- Ch. 18 - Immune Disorders22
- Ch. 19 - Pathogenic Gram-Positive Bacteria25
- Ch. 20 - Pathogenic Gram-Negative Cocci and Bacilli28
- Ch. 21 - Rickettsias, Chlamydias, Spirochetes, and Vibrios25
- Ch. 22 - Pathogenic Fungi47
- Ch. 23 - Parasitic Protozoa, Helminths, and Arthropod Vectors44
- Ch. 24 - Pathogenic DNA Viruses23
- Ch. 25 - Pathogenic RNA Viruses30
- Ch. 26 - Applied and Industrial Microbiology29
- Ch. 27 - Microbial Ecology and Microbiomes22
Bauman6th EditionMicrobiology with Diseases by TaxonomyISBN: 9780134832302Non è quello che usi tu?Cambia libro di testo
Capitolo 15, Problema 10
Which of the following binds iron?
a. Lactoferrin
b. Siderophores
c. Transferrin
d. All of the above
Guida verificata passo dopo passo1
Step 1: Understand the role of iron-binding molecules in microbiology. Iron is essential for many biological processes, but free iron is limited in the human body, so organisms have developed molecules to bind and transport iron.
Step 2: Examine lactoferrin, a protein found in secretions like milk and saliva, which binds iron tightly to limit its availability to pathogens, thus playing a role in innate immunity.
Step 3: Consider siderophores, which are small, high-affinity iron-chelating compounds secreted by bacteria to scavenge iron from the environment or host, facilitating bacterial iron uptake.
Step 4: Look at transferrin, a blood plasma protein that binds iron and transports it through the bloodstream to various tissues, maintaining iron homeostasis.
Step 5: Since lactoferrin, siderophores, and transferrin all bind iron in different biological contexts, conclude that the correct answer involves recognizing that all these molecules have iron-binding capabilities.
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Lactoferrin
Lactoferrin is an iron-binding glycoprotein found in various secretions like milk, saliva, and tears. It plays a role in the immune system by sequestering iron, limiting its availability to pathogens and thus inhibiting microbial growth.
Siderophores
Siderophores are small, high-affinity iron-chelating compounds secreted by bacteria and fungi to scavenge iron from their environment. They bind iron tightly and transport it back into microbial cells, aiding survival in iron-limited conditions.
Transferrin
Transferrin is a blood plasma protein that binds and transports iron throughout the body. It regulates free iron levels, making iron less available to invading microbes and thus contributing to host defense.
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