Q: What are the basic differences between cortical and juxtamedullary nephrons?
A: Nephron can be defined as the basic unit of structure in the kidney. nephron plays the role in the…
Q: What do invertebrate and vertebrate excretory structures have in common?
A: Excretory system of invertebrates does not comprises of a proper organ system for excretion. .when…
Q: What are the main functions of the excretory system, elaborate?
A: All living organisms are made up cells where the cell is the structural and functional unit of an…
Q: If a person eats 12 milligrams (mg) of salt in a day and excretes 11 mg of it in the urine, what…
A: Excretion can be defined as the removal of waste material or substances from the body generally by…
Q: Observe the network of capillaries, known as the vasa recta, that surrounds the nephron. What is the…
A: Vasa recta are the series of blood vessels in the blood supply of the kidney that enter the renal…
Q: What adaptations do tubule cells have for reabsorption?
A: The excretory framework is a uninvolved natural framework that eliminates overabundance, pointless…
Q: Only two types of tubules enter the renal medulla, the loop of Henle and the (?????) which further…
A: The structure that actually produces urine in the process of eliminating waste and excess substances…
Q: What do invertebrate and vertebrate excretory structures have in common?
A: Excretory systems , if present shares some similarities among vertebrates and invertebrates. There…
Q: what is a feature of glomerulus that contributes to its high efficiency in reabsorption?
A: A human kidney contains about one million of thin, long much convoluted tubular units called…
Q: What are the main structures of the excretory system
A: Itis the process of waste removal in the form of ammonia, urea , uric acid.
Q: why would you expect an animal that lives in fresh water to have a well developed excretory system
A: The water balance in the body is maintained by the excretory system. The structure of excretory…
Q: Why do the ureters use smooth muscle contraction to actively move urine to the urinary bladder? Why…
A: The urine passing from the kidney to the ureter is drained by the action of peristalsis. It involves…
Q: The kidneys filter blood and remove substances from the blood that get converted to urinary waste…
A: From kidney ,urine pass towards the thin tubes known as ureters to the bladder. Ureters are 8 to 10…
Q: What is the role of glomerular capillaries?
A: The internal lining of glomerular capillaries is made of endothelial cells. Glomerular capillaries…
Q: Based on their location in the body, what type of kidneys do frog have?
A: In amphibians like frogs the urinary and genital system are closely associated and hence are known…
Q: How do the kidneys differ in shark and frog?
A: The kidney is the most important organ of all vertebrates. The human kidney is made up of units…
Q: Why do vertebrates possess a complex excretory system?
A: The members of subphylum vertebrata are Agnatha (lacks jaws ) and Gnathostomata (bears jaws) .…
Q: Make a schematic diagram showing the process of urine formation
A: The kidney is the site where urine production takes place. The kidneys are an organ present in pair…
Q: How are nephridial organs and Malpighian tubules alike? How are they different? (Hint: Consider both…
A: The urinary organs like the kidney play a vital part in human osmoregulation to control the quantity…
Q: What are the functions of excretory systems?
A: The excretory system in the human body is responsible for eliminating the metabolic waste from the…
Q: What happens to glomeruli as a person ages?
A: Like the other organs, kidneys are also susceptible to age-related changes. Restricting the blood…
Q: Explain the importance of Urethra in human body ?
A: The urethra is a tubular structure that connects urinary bladder to the urethral aperture or meatus…
Q: Define the function of Ureters ? Why it is major part of the Urinary System ?
A: Animal Physiology and Human Anatomy are two important branches of science that study the form and…
Q: You discover a new toxin that blocks the reabsorption of all sodium ions from the proximal tubule.…
A: The proximal convoluted tubule (PCT) is a part of the renal tubule.
Q: Briefly describe and compare the urinary systems of flatworms, insects, and earthworms.
A: In the body different types of systems present like the digestive system, respiratory system,…
Q: There are two types of nephrons. Name them?
A: The kidneys are made up of small units called nephrons which serve both structurally and…
Q: Compare and contrast the male and female urinary tracts?
A: Urine is a liquid waste eliminated from the body by the urinary system. The urine is formed by the…
Q: What is the role of the kidneys in the body?
A: Kidneys are pair of bean-shaped organs which are present on each side of the spine and is located…
Q: Which of the following function isperformed by the kidneys in the humanbody?A. Excretion B.…
A: Kidney is a vital organ of the body that is located in peritoneum cavity of the body. In…
Q: The distal convuluted tubule secretes urea and what else
A: Distal convoluted tubule is the shortest and last part of the nephron. It is about 5 mm in length
Q: From where the urine produce in kidneys passes through?
A: Introduction All animals excrete out urine or some waste material. However, the main excretion…
Q: Explain excretory system in humans?
A: The excretory system can be defined as a biological system that removes unnecessary materials from…
Q: Draw a labelled diagram of excretory system of "common carp" fish?
A: Common carp fish : scientists name is cyprinus carpio It is a freshwater fish & prefer slow…
Q: Explain what glomeruli do
A: The glomerulus is a network of small blood vessels known as tuft of capillaries located at the…
Q: hat is role of skin, lungs and intestine in the process of excretion in man?
A: Excretion is the process of eliminating the metabolic wastes and excess water from the body of an…
Q: Shortly after you drink a large glass of water, you will feel the urge to urinate. Explain this…
A: Urination is the release of urine from a person's bladder through their urethra, and the process by…
Q: What are the sequence of the tissues beginning with lumen and ending with outer surface for the…
A: Excretory system helps in the removal of toxins outside the body.
Q: Describe the blood vessels called vasa rectae found in relation to uriniferous tubules. What is…
A: Excretion is the process through which all the metabolic waste products are extreted out of the body…
Q: Urine is produced by the juxtaglomerular apparatus O urinary bladder O kidney O ureter
A: Urine formation is essential for the elimination of waste products from the body. The whole process…
Q: The proximal convoluted tubule is primarily responsible for 1.) Reabsorption 2.) Blood pressure…
A: The kidney consists of millions of units involve in filtration is called a nephron. The nephron…
Q: The urethra is the structure by which urine exits the body. What is the difference between the 2…
A: Urinary system:-Also called the renal system, this produces, stores as well as eliminate…
Q: Describe the role of nephrons
A: Answer: NEPHRONS = It is the basic structural and functional unit of kidney which is used to carry…
Q: How do cortical and juxtamedullary nephrons differ with respect toreabsorbing nutrients and…
A: Cortical nephrons : The glomerulous of these nephrons are located to the outer parts of the cortex…
Mention the function of the following
(a) Ureters in frog
(b) Malpighian tubules
(c) Body wall in earthworm
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- (1) Please examine the figure below, depicting a portion of the rete mirabile associated with the gas bladder of two fishes: (a) One of these diagrams references a shallow water fish and the other references a deep water fish. Which diagram belongs to which type of fish? How can you tell? (b) Many deep water fish lack swim bladders altogether! Why do you think this is? What does the presence of a swim bladder in the above deep sea fish suggest about its behavior?Unlike an earthworm’s metanephridia,a mammalian nephron(A) is intimately associated with a capillarynetwork.(B) functions in both osmoregulation andexcretion.(C) receives filtrate from blood instead of coelomic fluid.(D) has a transport epithelium.Name the following:(a) A chordate animal having flame cells as excretory structures.(b) Cortical portions projecting between the medullary pyramids in the human kidney.
- 1) The kidneys seen in the early embryonic development amniotes are similar to the kidneys of adult hagfish in many ways. Which of these does NOT accurately describe one of these similarities? A) Both have nephrons with funnels opening into the peritoneal cavity or coelem. B) Both rely solely on the metanephritc nephrons to produce urine. C) Both have pronephric tubules and mesonephric tubules. D) Both have pronephric (archinephric) ducts that empty into the cloaca.1) Compared to those of similarly sized birds and lizards, the kidneys of mammals ______. A) have larger glomeruli, but shorter nephron loops B) have larger glomeruli, but shorter nephron loops C) have lower concentration of urea in their renal medulla D) have higher concentrations of Na+ and Cl- in their renal medullaThe urodeum is the a.) Filtering organ that replaces the mammalian kidney b.) Middle chamber of the cloaca c.) Material excreted by amphibians d.) Structure that allows reptiles to produce urine that's more concentrated than their blood.
- Which of the following is not a correct pair? (a) protonephridia; flatworm (b) metanephridia; annelid (c) flame cell; flatworm (d) Malpighian tubule; mollusk (e) kidney; vertebrateWhich of the following ions is important for the symport transport of amino acids, glucose and other solutes through the membrane into nephronest epithelial cells? a) Cl- b) Ca2 + c) Na + d) K +1) "Compared to those of similarly sized birds and lizards, the kidneys of mammals ______." A) "Compared to those of similarly sized birds and lizards, the kidneys of mammals ______." B) have a larger renal cortex but a smaller renal medulla C) have lower concentration of urea in their renal medulla D) have higher concentrations of Na+ and Cl- in their renal medulla
- The bodily fluids of freshwater fish contain higher concentration of dissolved solids in their surroundings, so they tend to bloat (take in water) or lose electrolytes. How can freshwater fish avoid this? 1.) By drinking lots of water? 2.) By actively transporting ions out from the gills into the water? 3.) by excreting highly concentrated urine? 4.) by resorbing ions in nephronsCompare the excretory systems of a flatworm and an annelid worm. How are they similar? How are they different?The desert kangaroo rat does not produce dilute, liquid urine, but instead produces thick, highlyconcentrated urine. Explain how having loops of Henle that are proportionally longer than otherterrestrial animals allows for this. How is production of thick, concentrated urine advantageous toa desert animal?