Question
How is double circulation different from single circulation?

Answer

The main difference between single circulatory systems and double circulatory systems is that in the case of single circulatory systems, blood passes through the heart only once on each circuit around the whole of the blood circulation system of the animal.but the double circulatory systems blood is pumped twice. Once from the heart to the lungs and then from heart to rest of the body.
In the single circulation the deoxygenated blood from the whole body of the animal spammed into the heart. From the heart it goes to the gills and the oxygenated blood is pumped back into the body. This kind of circulation takes place in fishes. Conversely, in the case of double circulatory systems, blood passes through the heart twice during one complete circuit around the blood system through the body of the animal. double circulation the deoxygenated blood is collected from the body, goes to the lungs for the process of oxygenation and then this oxygenated blood comes back to the heart. The heart pumps back this oxygenated blood into the body tissues. In this type of circulation, as the blood passes through the heart two times, it is known as double circulation. It takes place in birds & mammals like human beings.

Need a full question paper?

Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.

Start Generating Free

Similar questions

Complete the following cross word puzzle (Figure).
Across:
  1. An element with atomic number 12.
  1. Metal used in making cans and member of Group 14.
  2. A lustrous non-metal which has 7 electrons in its outermost shell.
​​​​​​​Down:
  1. Highly reactive and soft metal which imparts yellow colour when subjected to flame and is kept in kerosene.
  1. The first element of second Period.
  2. An element which is used in making fluorescent bulbs and is second member of Group 18 in the Modern Periodic Table.
  3. A radioactive element which is the last member of halogen family.
  4. Metal which is an important constituent of steel and forms rust when exposed to moist air.
  5. The first metalloid in Modern Periodic Table whose fibres are used in making bullet-proof vests.
Write the chemical formula of ammonium chloride. Explain why an aqueous solution of ammonium chloride is acidic in nature? Illustrate your answer with the help of a chemical equation.
Explain the principle of dialysis with the help of a labelled diagram.
The top part A of the flask-shaped reproductive organ X in the flower of a plant secrets a surgery substance into its lower part B which goes towards the bottom part C of the flask-shaped organ. When a tiny grain D coming from the top part E of another reproductive organ Y i the flower falls on part A, it grows a long tube F through the organ X i response to the sugary substance and reaches the bottom part C of flask-shaped organ to carry out fertilisation.
  1. Name parts (i) organ X, and (ii) organ Y, inside the flower?
  2. Name parts (i) A (ii) B, and (iii) C, of flask-shaped organ.
  3. Name (i) grain D, and (ii) part E of organ Y.
  4. Name the tube F.
  5. What is the phenomenon of growing a long tube in response to sugary substance in the process of fertilisation in a flower known as?
Carbon cannot reduce the oxides of sodium, magnesium and aluminium to their respective metals. Why? Where are these metals placed in the reactivity series? How are these metals obtained from their ores? Take an example to explain the process of extraction along with chemical equations.
In question 44, what are the combinations of character in the $F_2$ progeny? What are their ratios?
What are the various ways in which a chemical equation can be made more informative? Give examples to illustrate your answer.
State and explain the laws of reflection of light at a plane surface (like a plane mirror), with the help of a labelled ray-diagram. Mark the angles of ‘incidence’ and ‘reflection’ clearly on the diagram. If the angle of reflection is 47.5°, what will be the angle of incidence?
a. What is puberty? Write any two changes that occur in boys during early teenage years.
b. List two functions performed by testis in human males.
Mention one role each of (i) Vas deferens, (ii) Seminal Vesicle (iii) Urethra and (iv) Scrotum in human male reproductive system.
With the help of a labelled ray-diagram, describe how a plane mirror forms an image of a point source of light placed in front of it. State the characteristics of the image formed in a plane mirror.