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PHYSIO EX: EJERCICIO 9 ACTIVIDAD 5, Ejercicios de Fisiología Humana

Exercise 9: Renal System Physiology Activity 5: Reabsorption of Glucose via Carrier Proteins

Tipo: Ejercicios

2021/2022

Subido el 27/06/2022

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PhysioEx Exercise 9 Activity 5
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PhysioEx Lab Report
Exercise 9: Renal System Physiology
Activity 5: Reabsorption of Glucose via Carrier Proteins
Name: MJ
Date: 16 May 2022
Session ID: session-0e91c66b-83ee-ee07-38a9-328ed6474289
Pre-lab Quiz Results
You scored 100% by answering 4 out of 4 questions correctly.
Experiment Results
Predict Question
Stop & Think Questions
Renal processing of plasma glucose does
not
normally include
You correctly answered: secretion.
1
How does antidiuretic hormone (ADH) affect the renal processing of plasma glucose?
You correctly answered: ADH has no direct effects on renal processing of plasma glucose.
2
Glucose reabsorption in the nephron includes
You correctly answered: secondary active transport along the apical membrane of
proximal tubule cells.
3
Because carrier proteins are required to move glucose from the lumen of the nephron
into the interstitial spaces, which of the following statements is
false
?
You correctly answered: The number of glucose carriers in a nephron can be altered as
needed by the body.
4
Predict Question: What will happen to the glucose concentration in the urinary bladder as
glucose carriers are added to the proximal tubule?
Your answer: The glucose concentration will decrease.
1
Why is the glucose concentration the same in both Bowman's capsule and the urinary
bladder?
You correctly answered: Glucose cannot be reabsorbed in the absence of carriers.
1
Is a transport maximum reached in these experiments?
You correctly answered: yes.
2
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PhysioEx Lab Report

Exercise 9 : Renal System Physiology Activity 5 : Reabsorption of Glucose via Carrier Proteins Name: MJ Date: 16 May 2022 Session ID: session-0e91c66b-83ee-ee07-38a9-328ed

Pre-lab Quiz Results

You scored 100% by answering 4 out of 4 questions correctly.

Experiment Results

Predict Question Stop & Think Questions Renal processing of plasma glucose does not normally include You correctly answered: secretion.

How does antidiuretic hormone (ADH) affect the renal processing of plasma glucose? You correctly answered: ADH has no direct effects on renal processing of plasma glucose.

Glucose reabsorption in the nephron includes You correctly answered: secondary active transport along the apical membrane of proximal tubule cells.

Because carrier proteins are required to move glucose from the lumen of the nephron into the interstitial spaces, which of the following statements is false? You correctly answered: The number of glucose carriers in a nephron can be altered as needed by the body.

Predict Question: What will happen to the glucose concentration in the urinary bladder as glucose carriers are added to the proximal tubule? Your answer: The glucose concentration will decrease.

Why is the glucose concentration the same in both Bowman's capsule and the urinary bladder? You correctly answered: Glucose cannot be reabsorbed in the absence of carriers.

Is a transport maximum reached in these experiments? You correctly answered: yes.

Experiment Data Glucose Conc. Capsule Glucose Conc. Distal Glucose Conc. Bladder Total Glucose Carriers Conc. Grad. 6.00 6.00 6.00 0 1200 6.00 4.29 4.29 100 1200 6.00 2.57 2.57 200 1200 6.00 0.86 0.86 300 1200 6.00 0.00 0.00 400 1200

Post-lab Quiz Results

You scored 100% by answering 3 out of 3 questions correctly.

Review Sheet Results

Glucose carrier proteins are located in which region of the nephron? You correctly answered: the proximal convoluted tubule.

If the concentration of glucose in the filtrate exceeds the transport capacity of the carrier proteins, then You correctly answered: a transport maximum has been reached.

Why does glucose appear in the urine of untreated diabetic patients? You correctly answered: An excessive amount of glucose is present in their filtrate.

What happens to the concentration of glucose in the urinary bladder as the number of glucose carriers increases? Your answer: Mi predicción es correcta ya que, la concentración de glucosa disminuye en la vejiga urinaria a medida que aumenta el número de trasportadores de glucosa.

What types of transport are utilized during glucose reabsorption and where do they occur? Your answer: Se utiliza dos mecanismos:

  1. La difusión facilitada: a favor del gradiente de concentración utilizando una proteína de membrana, esta difusión ocurre cuando la glucosa sale a través de la membrana basolateral.
  2. Transporte activo secundario: debido a que se utilizan transportadores a favor y en