Teachoo Questions

What is the difference between autotrophic and heterotrophic modes of nutrition?

Why are green plants called producers?

Plants receive their nutrients mainly from:

Write difference between light reaction and dark reaction. Important

How would you test the presence of starch in leaves? Important

What do you mean by parasitic nutrition?

Difference between saprophytes and parasites.

Name one organism, each having saprophytic, parasitic and holozoic mode of nutrition. Important

Write one similarity and one difference between the mode of nutrition in amoeba and human beings. Important

What is chyme? Important

Which of the following is essential for preventing dental caries? Important

What is the difference between internal and external respiration?

List the similarities and differences between aerobic and anaerobic mode of respiration Important

What are the by products of anaerobic respiration?

Explain how photosynthesis is different from respiration? Important

Give an experiment to prove that carbon dioxide is released during respiration.

How does carbon dioxide react with lime water?

What are the different ways in which glucose is oxidized to provide energy in various organisms? Important

The fermentation of glucose by yeast normally yields:

Differentiate between tracheid and vessels? Important

Water absorption through roots can be increased by keeping the plant: Important

What are components of the transport system in human beings? What are their functions?

Draw a schematic representation of transport and exchange of oxygen and carbon dioxide in human bod Important

Draw a flowchart to show the circulation of blood through human heart

Why is Homeostasis important?

How do the leaves of the plants help in excretion? Important

Draw a well - labelled diagram of a human excretory system and label the parts

What is the process of dialysis? You are here

Why is it necessary to excrete waste products?

Differentiate between egestion and excretion Important

Difference between transpiration and translocation. Important

Class 10
Chapter 6 Class 10 - Life Processes

What is the process of dialysis?

 

Answer:

Block diagram Haemodialysis - Teachoo.jpg

  • When a person has kidney failure, the waste products are removed by the  help of artificial kidney or haemodialysis.
  • Artificial kidney is a physico - chemical device , based on the principle of separation of smaller solutes or ions from larger ions with the help of ultrafilter .
  • The dialysis machine consists of a tube of semi permeable membrane which is coiled to the tank.
  • This tank is filled with dialysing fluid i.e. glucose, water and salts has the same osmotic concentration as that of blood .
  • As the patient's blood passes through the solution nitrogenous waste products , phosphates and sulfates are excluded .
  • The clean blood is pumped back to the vein of the patient's arm.This whole process takes 3-4 hours.

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Maninder Singh

CA Maninder Singh is a Chartered Accountant for the past 13 years and a teacher from the past 17 years. He teaches Science, Economics, Accounting and English at Teachoo