
Concept explainers
Introduction:
The humans are connected with a vast array of microbes known as resident biota. A holobiont includes the human body along with resident biota. These microbes of resident biota also prevent the overgrowth of harmful microorganisms.

Answer to Problem 1MCQ
Correct answer:
The best descriptive term for the resident biota is commensals. Therefore, option (a) is correct.
Option (a) is given as “commensals”.
Explanation of Solution
Justify reasons for the correct statement:
Some organisms show evolution along with its human hosts and produce a complex relationship in which the effects of normal biota are not deleterious to the host. Normal biota is generally either in a commensal or mutualistic association with their hosts because microbes exist in different kinds of relationships with their hosts.
Hence, option (a) is correct.
Justify reasons for the incorrect statements:
Option (b) is given as “
The parasites are the organisms which can live on host body, but they do not live in commensals like microorganisms. Hence, it is a wrong answer.
Option (c) is given as “pathogens”.
Not all pathogens live in commensals. Only some microorganisms live in commensals. Hence, it is a wrong answer.
Option (d) is given as “mutualists”.
Mutualists are the organisms which live in a relationship such that both the organisms are benefitted. Hence, it is a wrong answer.
Hence, options (b),(c), and(d) are incorrect.
The commensals are the microorganisms which live in a group. The resident biotas are also commensals.
Want to see more full solutions like this?
Chapter 13 Solutions
Microbiology: A Systems Approach
- please fill in missing parts , thank youarrow_forwardplease draw in the answers, thank youarrow_forwarda. On this first grid, assume that the DNA and RNA templates are read left to right. DNA DNA mRNA codon tRNA anticodon polypeptide _strand strand C с A T G A U G C A TRP b. Now do this AGAIN assuming that the DNA and RNA templates are read right to left. DNA DNA strand strand C mRNA codon tRNA anticodon polypeptide 0 A T G A U G с A TRParrow_forward
- Please identify the curve shown below. What does this curve represent? Please identify A, B, C, D, and E (the orange oval). What is occurring in these regions?arrow_forwardPlease identify the test shown here. 1) What is the test? 2) What does the test indicate? How is it performed? What is CX? 3) Why might the test be performed in a clinical setting? GEN CZ CX CPZ PTZ CACarrow_forwardDetermine how much ATP would a cell produce when using fermentation of a 50 mM glucose solution?arrow_forward
- Determine how much ATP would a cell produce when using aerobic respiration of a 7 mM glucose solution?arrow_forwardDetermine how much ATP would a cell produce when using aerobic respiration to degrade one small protein molecule into 12 molecules of malic acid, how many ATP would that cell make? Malic acid is an intermediate in the Krebs cycle. Assume there is no other carbon source and no acetyl-CoA.arrow_forwardIdentify each of the major endocrine glandsarrow_forward
- Basic Clinical Lab Competencies for Respiratory C...NursingISBN:9781285244662Author:WhitePublisher:CengageComprehensive Medical Assisting: Administrative a...NursingISBN:9781305964792Author:Wilburta Q. Lindh, Carol D. Tamparo, Barbara M. Dahl, Julie Morris, Cindy CorreaPublisher:Cengage Learning
