Question

The actions of filtration, reabsorption, and secretion in the kidney Based on what you know about the actions of filtration, reabsorption, and secretion in the nephron of the kidney, indicate whether the following statements are true or false. 1. Only about 75-80% of the plasma is filtered from the blood as it circulates through the glomerulus. 2. Proteins and blood cells are prevented from leaving the glomerular capillaries. 3. If the afferent arteriole dilates, more blood enters the glomerulus, thus less plasma will flow into Bowman's capsule. 4. Most of a solute (65% to 100%) is reabsorbed from the collecting duct. 5. If a particular transport molecule reaches its Tm, the substance that it is transporting will be excreted in the urine. 6. Secretion does not occur in the proximal tubule. 7. The collecting duct is permeable to water but not to ions.

          The actions of filtration, reabsorption, and secretion in the kidney

Based on what you know about the actions of filtration, reabsorption, and secretion in the nephron of the kidney, indicate whether the following statements are true or false.

1. Only about 75-80% of the plasma is filtered from the blood as it circulates through the glomerulus.
2. Proteins and blood cells are prevented from leaving the glomerular capillaries.
3. If the afferent arteriole dilates, more blood enters the glomerulus, thus less plasma will flow into Bowman's capsule.
4. Most of a solute (65% to 100%) is reabsorbed from the collecting duct.
5. If a particular transport molecule reaches its Tm, the substance that it is transporting will be excreted in the urine.
6. Secretion does not occur in the proximal tubule.
7. The collecting duct is permeable to water but not to ions.

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The actions of filtration, reabsorption, and secretion in the kidney

Based on what you know about the actions of filtration, reabsorption, and secretion in the nephron of the kidney, indicate whether the following statements are true or false.

1. Only about 75-80% of the plasma is filtered from the blood as it circulates through the glomerulus.
2. Proteins and blood cells are prevented from leaving the glomerular capillaries.
3. If the afferent arteriole dilates, more blood enters the glomerulus, thus less plasma will flow into Bowman's capsule.
4. Most of a solute (65% to 100%) is reabsorbed from the collecting duct.
5. If a particular transport molecule reaches its Tm, the substance that it is transporting will be excreted in the urine.
6. Secretion does not occur in the proximal tubule.
7. The collecting duct is permeable to water but not to ions.

Added by Daniel A.

Biology for AP Courses

Julianne Zedalis, John Eggebrecht

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Solved by Expert Adi S

06/20/2023

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Only about 75-80% of the plasma filtered from the blood as it circulates through the glomerulus. False. Approximately 20% of the plasma is filtered through the glomerulus. Show more…

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Transcript

00:01 Let us consider the functions performed by a kidney filtration, reabsorption and secretion.

00:17 These are the three major functions that a kidney performs in a body.

00:23 Its major role is excretion of nitrogenous waste from the body.

00:31 In this we have few statements where we have to explain about true or false in these statements.

00:39 First let us consider the kidneys function.

00:43 Kidneys they are capable of filtering the blood and remove the unwanted substances from the blood and they produce the urine that is excreted from the body.

01:10 Here we come across three main steps.

01:15 One is urine formation.

01:18 First step is urine formation, glomular filtration, reabsorption and secretion.

01:35 These are the steps that a kidney can carry out that is urine formation, glomular filtration, reabsorption and secretion.

01:58 These are the steps that are carried out by a kidney and these process ensure that the body is free of waste and excess is removed from the body.

02:14 As we know kidney contains more than 1 million tiny structures nephrons.

02:29 These nephrons they possess glomerulus and these are the site of blood filtration.

02:45 Glomerulus are useful to filter the blood.

02:51 Glomerulus is considered to be a network of capillaries that are surrounded by a cup like structure glomulural capsule.

03:07 This glomulural capsule also known as bowman's capsule...

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