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Q 1.
Name the part which carry oxygen rich blood from heart to all parts of the body?
Ans.
Arteries.
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Q 2.
Where our heart is located?
Ans.
Heart is located in the chest cavity with lower tip slightly titled towards the left.
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Q 3.
Land animals excrete cell in the form of?
Ans.
Semi-solid.
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Q 4.
Name the component of blood?
Ans.
1.RBC
2.WBC 3.Platelets |
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Q 5.
Name the parts of circulation system?
Ans.
Heart and blood vessel.
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Q 6.
Removal of waste products from the body is called?
Ans.
Excretion.
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Q 7.
Water reaches great heights in the trees because of suction pull caused by?
Ans.
Transpiration.
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Q 8.
Sweat contains water and?
Ans.
Salts.
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Q 9.
The rhythmic expansion and contraction of the heart is called?
Ans.
Heart beat.
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Q 10.
Name the scientist who discovered blood circulation system?
Ans.
William Harvey.
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Q 11.
Percentage of urea in human urine?
Ans.
2.5%
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Q 12.
Name the cells which are responsible for making blood clotting?
Ans.
Platelets.
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Q 13.
Name the vessels which carry carbon dioxide rich blood from all parts of the body to the heart?
Ans.
Veins.
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Q 14.
Name the instrument that is used to hear the heart beats?
Ans.
Stethoscope.
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Q 15.
Heart rate in adult human body?
Ans.
70-80 times.
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Q 16.
Name the waste substance which are excreted by fish?
Ans.
Ammonia.
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Q 17.
Name the main excretory product in human being?
Ans.
Urea.
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Q 18.
Name the network that joins arteries and veins?
Ans.
Capillaries.
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Q 19.
Hemoglobin is present in which cell?
Ans.
Red blood cell.
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Q 20.
Blood from the heart is transported to all parts of the body with the help of?
Ans.
Arteries.
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Q 21.
Why the colour of the blood is red?
Ans.
Due to the presence of Hemoglobin.
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Q 22.
Food is transported in plants through?
Ans.
Pholem.
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Q 23.
By keeping the plant in dim light water absorption through roots will?
Ans.
Increased.
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Q 24.
Water is transported in plants through?
Ans.
Xylem.
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