Science
The figure shown below represents a common type of dialysis called as Haemodialysis. It removes waste products from the blood such as excess salts, and urea which are insufficiently removed by the kidney in patients with kidney failure. During the procedure, the patient's blood is cleaned by filtration through a series of semi-permeable membrane before being returned to the blood of the patient. On the basis of this, answer the following questions:
Which part of the nephron in human kidney, serves the function of reabsorption of certain substances?
- Glomerulus
- Bowman's capsule
- Tubules
- Collecting duct
Excretory System
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Answer
Tubules
Reason — Reabsorption occurs in Proximal convoluted tubule of nephron.
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The figure shown below represents a common type of dialysis called as Haemodialysis. It removes waste products from the blood such as excess salts, and urea which are insufficiently removed by the kidney in patients with kidney failure. During the procedure, the patient's blood is cleaned by filtration through a series of semi-permeable membrane before being returned to the blood of the patient. On the basis of this, answer the following questions:
The 'used dialysing' solution is rich in:
- Urea and excess salts
- Blood cells
- Lymph
- Proteins
The figure shown below represents a common type of dialysis called as Haemodialysis. It removes waste products from the blood such as excess salts, and urea which are insufficiently removed by the kidney in patients with kidney failure. During the procedure, the patient's blood is cleaned by filtration through a series of semi-permeable membrane before being returned to the blood of the patient. On the basis of this, answer the following questions:
Which one of the following is not a function of Artificial Kidney?
- To remove nitrogenous wastes from the blood.
- To remove excess fluids from the blood.
- To reabsorb essential nutrient from the blood.
- To filter and purify the blood.
A compound microscope is an instrument that consists of two lenses L1 and L2. The lens L1 called objective forms a real, inverted and magnified image of the given object. This serves as the object for the second lens L2; the eyepiece. The eyepiece functions as a simple microscope or magnifier. It produces the final image, which is inverted with respect to the original object, enlarged and virtual.
What types of lenses must be L1 and L2?
- Both concave
- Both convex
- L1 – concave and L2– convex
- L1 – convex and L2 – concave
A compound microscope is an instrument that consists of two lenses L1 and L2. The lens L1 called objective forms a real, inverted and magnified image of the given object. This serves as the object for the second lens L2; the eyepiece. The eyepiece functions as a simple microscope or magnifier. It produces the final image, which is inverted with respect to the original object, enlarged and virtual.
What is the value and sign of magnification (according to the new Cartesian sign convention) of the image formed by L1?
- Value = Less than 1 and Sign = Positive
- Value = More than 1 and Sign = Positive
- Value = Less than 1 and Sign = Negative
- Value = More than 1 and Sign = Negative