PPT - Transportation in Animals and Plants Class 7 Notes | EduRev

Science Class 7

Created by: Praveen Kumar

Class 7 : PPT - Transportation in Animals and Plants Class 7 Notes | EduRev

 Page 1


CHAPTER - 11 
 
TRANSPORTATION IN ANIMALS 
AND PLANTS 
Page 2


CHAPTER - 11 
 
TRANSPORTATION IN ANIMALS 
AND PLANTS 
1) Circulatory system :- 
    In human beings digested food, water and oxygen are transported to 
all parts of the body. Waste products are also transported form all parts 
of the body to be removed from the body. 
   The transport of substances in the body is done by the circulatory 
system. It consists of heart, blood vessels and blood. 
 
Page 3


CHAPTER - 11 
 
TRANSPORTATION IN ANIMALS 
AND PLANTS 
1) Circulatory system :- 
    In human beings digested food, water and oxygen are transported to 
all parts of the body. Waste products are also transported form all parts 
of the body to be removed from the body. 
   The transport of substances in the body is done by the circulatory 
system. It consists of heart, blood vessels and blood. 
 
i) Blood :- 
   Blood transports substances in the body. It has a fluid part called 
plasma and cells like red blood cells (RBC), white blood cells (WBC) and 
platelets. 
  Red blood cells :- contain  a pigment called haemoglobin which 
transports oxygen. 
  White blood cells :- fights against germs and protects us from 
diseases. 
  Platelets :- help in clotting of blood. 
Page 4


CHAPTER - 11 
 
TRANSPORTATION IN ANIMALS 
AND PLANTS 
1) Circulatory system :- 
    In human beings digested food, water and oxygen are transported to 
all parts of the body. Waste products are also transported form all parts 
of the body to be removed from the body. 
   The transport of substances in the body is done by the circulatory 
system. It consists of heart, blood vessels and blood. 
 
i) Blood :- 
   Blood transports substances in the body. It has a fluid part called 
plasma and cells like red blood cells (RBC), white blood cells (WBC) and 
platelets. 
  Red blood cells :- contain  a pigment called haemoglobin which 
transports oxygen. 
  White blood cells :- fights against germs and protects us from 
diseases. 
  Platelets :- help in clotting of blood. 
ii) Blood vessels :- 
   There are three types of blood vessels. They are arteries, veins and 
capillaries. 
    Arteries :-  carry  oxygen rich blood from the heart to all parts of the 
body. They have thick walls. 
    Veins :- carry carbon dioxide rich blood from all parts of the body to 
the heart. They have thin walls. 
   Capillaries :- are very thin blood vessels which join arteries and veins. 
  Pulse/Pulse rate :- Blood flows through arteries at a high pressure 
causing throbbing movements called pulse. The number of pulse beats 
per minute is called pulse rate. The normal pulse rate is between 72 and 
80 beats per minute. 
Page 5


CHAPTER - 11 
 
TRANSPORTATION IN ANIMALS 
AND PLANTS 
1) Circulatory system :- 
    In human beings digested food, water and oxygen are transported to 
all parts of the body. Waste products are also transported form all parts 
of the body to be removed from the body. 
   The transport of substances in the body is done by the circulatory 
system. It consists of heart, blood vessels and blood. 
 
i) Blood :- 
   Blood transports substances in the body. It has a fluid part called 
plasma and cells like red blood cells (RBC), white blood cells (WBC) and 
platelets. 
  Red blood cells :- contain  a pigment called haemoglobin which 
transports oxygen. 
  White blood cells :- fights against germs and protects us from 
diseases. 
  Platelets :- help in clotting of blood. 
ii) Blood vessels :- 
   There are three types of blood vessels. They are arteries, veins and 
capillaries. 
    Arteries :-  carry  oxygen rich blood from the heart to all parts of the 
body. They have thick walls. 
    Veins :- carry carbon dioxide rich blood from all parts of the body to 
the heart. They have thin walls. 
   Capillaries :- are very thin blood vessels which join arteries and veins. 
  Pulse/Pulse rate :- Blood flows through arteries at a high pressure 
causing throbbing movements called pulse. The number of pulse beats 
per minute is called pulse rate. The normal pulse rate is between 72 and 
80 beats per minute. 
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