
Which of the following respiratory systems is not closely associated with a blood supply?
- A. the lungs of a vertebrate
- B. the gills of a fish
- C. the tracheal system of an insect
- D. the skin of an earthworm

Introduction:
Respiratory system consists of organs that take part in the process of respiration. Respiration is a process, in which food is broken down into simpler components releasing energy. Respiratory system consists of organs that participate in the exchange of gases.
Answer to Problem 1TYU
Correct answer:
The tracheal system of an insect is not associated with a blood supply. Therefore, option (C) is correct.
Explanation of Solution
Reasons for the correct statement:
Tracheal system of an insect consists of spiracles, which is a series of holes or openings. These spiracles are responsible for respiration in insects. Spiracles do not have any blood supply.
Option (C) is given as “the tracheal system of an insect”.
As “the tracheal system is not associated with blood supply”, it is the right answer.
Hence, option (C) is correct.
Reasons for the incorrect statements:
Option (A) is given as “the lungs of a vertebrate”.
The lungs of a vertebrate are connected with blood capillaries. These capillaries bring deoxygenated blood to the lungs and carry away oxygenated blood. So, it is a wrong answer.
Option (B) is given as “the gills of a fish”.
Gills of a fish have gill lamellae and it contains blood within itself. The blood in gill lamellae flows in the opposite direction of the water. So, it is a wrong answer.
Option (D) is given as “the skin of an earthworm”.
Moist skin of earthworm is responsible for respiration and it is associated with blood vessels. So, it is a wrong answer.
Hence, options (A), (B), and (D) are incorrect.
Respiratory systems are those systems, which perform the basic function of respiration. They are somehow related to blood supply either directly or indirectly, but the tracheal system of insects is not associated with blood supply.
Want to see more full solutions like this?
Chapter 34 Solutions
Campbell Biology in Focus (2nd Edition)
Additional Science Textbook Solutions
Biological Science (6th Edition)
Chemistry: The Central Science (14th Edition)
The Cosmic Perspective (8th Edition)
Laboratory Manual For Human Anatomy & Physiology
SEELEY'S ANATOMY+PHYSIOLOGY
Biology: Life on Earth with Physiology (11th Edition)
- Please 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_forwardDetermine how much ATP would a cell produce when using aerobic respiration of a 7 mM glucose solution?arrow_forward
- Determine 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_forwardCome up with a few questions and answers for umbrella species, keystone species, redunant species, and aquatic keystone speciesarrow_forward
- 19. On the diagram below a. Label the three pictures as: DNA; polypeptide; or RNA. b. Label the arrows as: translation or transcription/RNA processing. c. Add the following details to the diagram. Promoter region TATA box Transcription start site Transcription terminator Intron (A,B,C,D) Exons (1,2,3,4,5) Splice sites 5' cap 5' UTR (untranslated region) 3' poly A tail 3' UTR (untranslated region) Translational start (AUG) Translational stop (UGA, UAG, or UAA) N and C ends of polypeptide 0000arrow_forwardMatch the letter labels in the figure below to the terms. Some letter labels are not used. MNNNNNNIN M C B A M D F E H K G 8arrow_forwardThe diagram below illustrates a quorum sensing pathway from Staphylococcus aureus. Please answer the following questions. 1. Autoinduction is part of the quorum sensing system. Which promoter (P2 or P3) is critical for autoinduction? 2)This staphylococcus aureus grows on human wounds, causing severe infections. You would like to start a clinical trial to treat these wound infections. Please describe: a) What molecule do you recommend for the trial. Why? b) Your trial requires that Staphylococcus aureus be isolated from the wound and submitted to genome sequencing before admittance. Why? What are you testing for? 3) If a mutation arises where the Promoter P3 is constitutively active, how would that influence sensitivity to AIP? Please explain your rationale. 4) This pathway is sensitive to bacterial cell density. Describe two separate mutation that would render the pathway active independent of cell density. Briefly explain your rationale. Mutation 1 Mutation 2arrow_forward
- There is currently a H5N1 cattle outbreak in North America. According to the CDC on Feb 26*: "A multistate outbreak of HPAI A(H5N1) bird flu in dairy cows was first reported on March 25, 2024. This is the first time that these bird flu viruses had been found in cows. In the United States, since 2022, USDA has reported HPAI A(H5N1) virus detections in more than 200 mammals." List and describe two mechanisms that could lead to this H5N1 influenza strain evolving to spread in human: Mechanisms 1: Mechanisms 2: For the mutations to results in a human epidered they would need to change how the virus interacts with the human host. In the case of mutations that may promote an epidemic, provide an example for: a protein that might incur a mutation: how the mutation would change interactions with cells in the respiratory tract (name the receptor on human cells) List two phenotypic consequence from this mutation that would increase human riskarrow_forwardYou have a bacterial strain with the CMU operon: a) As shown in the image below, the cmu operon encodes a peptide (Pep1), as well as a kinase and regulator corresponding to a two-component system. The cmu operon is activated when Pep 1 is added to the growth media. Pep1 is a peptide that when added extracellularly leads to activation of the Cmu operon. Pep1 cmu-kinase cmu-regulator You also have these genetic components in other strains: b) An alternative sigma factor, with a promoter activated by the cmu-regulator, that control a series of multiple operons that together encode a transformasome (cellular machinery for transformation). c) the gene cl (a repressor). d) the promoter X, which includes a cl binding site (and in the absence of cl is active). e) the gene gp (encoding a green fluorescence protein). Using the cmu operon as a starting point, and assuming you can perform cloning to rearrange any of these genomic features, how would you use one or more of these to modify the…arrow_forwardYou have identified a new species of a Gram-positive bacteria. You would like to screen their genome for all proteins that are covalently linked to the cell wall. You have annotated the genome, so that you identified all the promoters, operons, and genes sequences within the operons. Using these features, what would you screen for to identify a set of candidates for proteins covalently linked to the bacterial cell wall.arrow_forward
- Concepts of BiologyBiologyISBN:9781938168116Author:Samantha Fowler, Rebecca Roush, James WisePublisher:OpenStax College
- Biology: The Dynamic Science (MindTap Course List)BiologyISBN:9781305389892Author:Peter J. Russell, Paul E. Hertz, Beverly McMillanPublisher:Cengage LearningBasic Clinical Lab Competencies for Respiratory C...NursingISBN:9781285244662Author:WhitePublisher:Cengage

