MAJOR LIFE PROCESSES-ii(MOVEMENT,SUPPORT,NERVOUS SYSTEM,CHAPTER 3,ELEMENTARY SCIENCE 7,SINDH TEXTBOOK BOARD)

Q1 Explain briefly the role of iron and calcium in maintaining the human body?

Ans:- Role of iron: Iron is essential for the formation of blood haemoglobin.
Role of Calcium:Formation of bones, teeth, clotting of blood .Muscles activity all are worked by the calcium in the human body.

Q2 Explain the importance of green plant in our life?

Ans:- plants are important for us because ,
1)  Plants are the lungs of atmosphere .
2) These are the source of our food.
3) They absorb carbon dioxide from the atmosphere.

Q3  Write the names of  three plants found in or near your area.

Ans:- The names of those ten plants are :
 orange plant
banana plant
apple plant
grapes plant
lemon plants
tomatoes plant
chilli plant
rice plant
wheat plant
brinial plant

Q4 Respiration is basically the same process in both plant and animal,write a brief explanation of why this is  a true statement.

Ans:- The process of respiration is basically the same in both plants and animals .It occurs in all body cells cells.Food and oxygen are needed for respiration to take place.due to these the combination of food and oxygen energy is released thus the process is same in both plants and animals.

Q5 Explain the functions of the lungs,kidneys and skin in the excretory system.

Ans:-