Domanda del libro di testo
Scientists have noted that marine invertebrates tend to be osmoconformers, while freshwater invertebrates tend to be osmoregulators. Suggest an explanation for this phenomenon.
1040
views
Ch. 40 - Water and Electrolyte Balance in Animals
Freeman8th EditionBiological ScienceISBN: 9780138276263
Non è quello che usi tu?Cambia libro di testoScegli un libro di testo diverso
TOC.tableOfContents
- Ch. 1 - Biology: The Study of Life13
- Ch. 2 - Water and Carbon: The Chemical Basis of Life14
- Ch.3 - Protein Structure and Function10
- Ch.4 - Nucleic Acids and the RNA World10
- Ch. 5 - An Introduction to Carbohydrates10
- Ch. 6 - Lipids, Membranes, and the First Cells11
- Ch. 7 - Inside the Cell10
- Ch. 8 - Energy and Enzymes: An Introduction to Metabolism10
- Ch. 9 - Cellular Respiration and Fermentation11
- Ch. 10 - Photosynthesis12
- Ch. 11 - Cell-Cell Interactions12
- Ch. 12 - The Cell Cycle8
- Ch. 13 - Meiosis12
- Ch. 14 - Mendel and the Gene23
- Ch. 15 - DNA and the Gene: Synthesis and Repair15
- Ch. 16 - How Genes Work16
- Ch. 17 - Transcription, RNA Processing, and Translation16
- Ch. 18 - Control of Gene Expression in Bacteria16
- Ch. 19 - Control of Gene Expression in Eukaryotes12
- Ch. 20 - The Molecular Revolution: Biotechnology, Genomics, and New Frontiers15
- Ch. 21 - Genes, Development, and Evolution12
- Ch. 22 - Evolution by Natural Selection16
- Ch. 23 - Evolutionary Processes13
- Ch. 24 - Speciation15
- Ch. 25 - Phylogenies and the History of Life13
- Ch. 26 - Bacteria and Archaea15
- Ch. 27 - Diversification of Eukaryotes16
- Ch. 28 - Green Algae and Land Plants16
- Ch. 29 - Fungi18
- Ch. 30 - An Introduction to Animals9
- Ch. 31 - Protostome Animals15
- Ch. 32 - Deuterostome Animals17
- Ch. 33 - Viruses16
- Ch. 34 - Plant Form and Function16
- Ch. 35 - Water and Sugar Transport in Plants16
- Ch. 36 - Plant Nutrition13
- Ch. 37 - Plant Sensory Systems, Signals, and Responses16
- Ch. 38 - Flowering Plant Reproduction and Development16
- Ch. 39 - Animal Form and Function17
- Ch. 40 - Water and Electrolyte Balance in Animals16
- Ch. 41 - Animal Nutrition16
- Ch. 42 - Gas Exchange and Circulation16
- Ch. 43 - Animal Nervous Systems16
- Ch. 44 - Animal Sensory Systems16
- Ch. 45 - Animal Movement11
- Ch. 46 - Chemical Signals in Animals16
- Ch. 47 - Animal Reproduction and Development16
- Ch. 48 - The Immune System in Animals16
- Ch. 49 - An Introduction to Ecology15
- Ch. 50 - Behavioral Ecology16
- Ch. 51 - Population Ecology16
- Ch. 52 - Community Ecology20
- Ch. 53 - Ecosystems and Global Ecology17
- Ch. 54 - Biodiversity and Conservation Ecology18
Freeman8th EditionBiological ScienceISBN: 9780138276263Non è quello che usi tu?Cambia libro di testo
Tutti i libri di testo
Freeman 8th EditionCh. 40 - Water and Electrolyte Balance in AnimalsProblema 7
Freeman 8th EditionCh. 40 - Water and Electrolyte Balance in AnimalsProblema 7Capitolo 40, Problema 7
Explain why mammals would not be able to produce concentrated urine if their nephrons lacked loops of Henle.
Guida verificata passo dopo passo1
Understand the function of the loop of Henle: The loop of Henle is a crucial part of the nephron in the kidneys of mammals, responsible for concentrating urine. It helps in the reabsorption of water and solutes from the filtrate, which is essential for producing concentrated urine.
Recognize the role of the descending limb: The descending limb of the loop of Henle is permeable to water but not to solutes. As the filtrate moves down this limb, water is reabsorbed into the surrounding interstitial fluid, increasing the concentration of the filtrate.
Consider the role of the ascending limb: The ascending limb of the loop of Henle is impermeable to water but allows the transport of ions such as sodium and chloride out of the filtrate. This active transport of solutes helps in creating a high osmotic gradient in the medulla of the kidney.
Link to the production of concentrated urine: The high osmotic gradient established by the loop of Henle allows for the reabsorption of water from the collecting ducts. Without the loop of Henle, this gradient would not exist, and the kidneys would be unable to reabsorb sufficient water to produce concentrated urine.
Conclude the importance of the loop of Henle: Without the loop of Henle, mammals would only produce dilute urine, regardless of their hydration status. This would be inefficient and could lead to challenges in conserving water, especially in arid environments.
Risposta video verificata per un problema simile:
Questa soluzione video è stata consigliata dai nostri tutor come utile per risolvere questo problema.
Durata del video:
1mConcetti chiave
Ecco i concetti essenziali che devi comprendere per rispondere correttamente alla domanda.
Nephrons
Nephrons are the functional units of the kidney responsible for filtering blood and forming urine. Each nephron consists of a renal corpuscle and a renal tubule, where various processes such as filtration, reabsorption, and secretion occur. The structure and function of nephrons are crucial for maintaining fluid and electrolyte balance in the body.
Video consigliato:
02:59
Kidney and Nephron
Loop of Henle
The Loop of Henle is a U-shaped segment of the nephron that plays a critical role in concentrating urine. It consists of a descending limb, which is permeable to water, and an ascending limb, which is impermeable to water but actively transports ions out. This countercurrent mechanism creates a concentration gradient in the renal medulla, allowing for the reabsorption of water and the production of concentrated urine.
Video consigliato:
06:25Loop of Henle
Countercurrent Multiplication
Countercurrent multiplication is a process that enhances the concentration of urine through the interaction of fluid flowing in opposite directions in the Loop of Henle. This mechanism allows for the efficient reabsorption of water and solutes, creating a hyperosmotic environment in the medulla. Without this process, mammals would struggle to conserve water, leading to the production of dilute urine.
Video consigliato:
06:28Countercurrent Exchange
Pratica correlata
Domanda del libro di testo
In Gila monsters, the organ in which water from urine is reabsorbed into the bloodstream is the___________. .
537
views
Domanda del libro di testo
The chloride cells of fish gills have a high density of mitochondria. How does this characteristic relate to the functional role of chloride cells?
Would you expect other epithelial cells involved in ion transport to contain large numbers of mitochondria? Explain.
1253
views
Domanda del libro di testo
Biologists have been able to produce mice that lack functioning genes for aquaporins. How would the urine of these mice compare to that of mice with normal aquaporins?
a. Lower volume and lower osmolarity
b. Lower volume and higher osmolarity
c. Higher volume and lower osmolarity
d. Higher volume and higher osmolarity
720
views
Domanda del libro di testo
Compare and contrast the types of nitrogenous wastes excreted by animals. Identify which type can be excreted with the least water, which is most toxic, and which waste is excreted by bony fishes, by mammals, and by insects. Which type would you expect to be produced by embryos inside eggs laid on land?
1493
views
Domanda del libro di testo
To test the hypothesis that mussels are osmoconformers, researchers exposed mussels to water of varying osmolarities and then drew hemolymph samples from the mussels. Graph the data provided here. Put the independent variable on the x-axis and the dependent variable on the y-axis.
Is the researchers' hypothesis supported by the data? Explain.
676
views