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Published on: 09/09/2019
Transportation in Plants Circulation in Animals
Download Tamil Nadu 10th Standard Science question papers, model tests, one-mark questions, important questions, and public exam papers in PDF format. Free study materials and answer keys for TN State Board students.
Questions + Answers key
Take MCQ Science Test1.
Which one of the following shows correct composition of blood?
Plasma - Blood + Lymphocyte
Serum - Blood + Fibrinogen
Lymph - Plasma + RBC + WBC
Blood - Plasma + RBC + WBC + Platelets
2.
‘Heart of Heart’ is called
SA node
AV node
Purkinje fibres
Bundle of His
3.
A patient with blood group O was injured in an accident and has blood loss. Which group of blood should be used by doctor for transfusion?
O group
AB group
A and B group
All blood group
4.
Which is the correct sequence of blood flow
Ventricle → atrium → vein → arteries
Atrium → ventricle → veins → arteries
Atrium → ventricle → arteries → vein
Ventricles → vein → atrium → arteries
5.
Active transport involves
Movement of molecules from lower to higher concentrations
Expenditure of energy
It is an uphill task
All of the above
6.
The normal human heartbeat rate is about ____________ time per minute.
7.
Normal blood pressure is __________.
8.
Structures in roots that help to absorb water are __________.
9.
__________ involves evaporative loss of water from aerial parts.
10.
Name the heart valve associated with the major arteries leaving the ventricles.
11.
Which kind of cells are found in the lymph?
12.
What is the shape of RBC in human blood?
13.
How are arteries and veins structurally different from one another?
14.
Who discovered Rh factor? Why was it named so?
15.
How does the pulmonary artery and pulmonary vein differ in their function when compared to a normal artery and vein?
1.
(d)
Blood - Plasma + RBC + WBC + Platelets
2.
(a)
SA node
3.
(a)
O group
4.
(c)
Atrium → ventricle → arteries → vein
5.
(d)
All of the above
6.
( )
72 - 75
7.
( )
120mm / 80mm Hg
8.
( )
root hairs
9.
( )
Transpiration
10.
Semilunar valves associated with the major arteries leaving the ventricles.
11.
Plasma, proteins and blood cells.
12.
RBCs are biconcave and disc - shaped.
13.
(i) Arteries are thick and elastic vessels that carry blood away from the heart.
(ii) Veins are thin and non-elastic vessels that transport blood to the heart.
14.
(i) Rh factor was discovered by Landsteiner and Wiener in 1940. It was named so because it was first discovered in Rhesus monkey.
15.
| S.No | Pulmonary Artery | Normal Artery |
| (i) | It carries blood from heart to lungs. | It carries blood from heart to other parts of body. |
| (ii) | It carries deoxygenated blood. | It carries oxygenated blood. |
| S.No | Pulmonary Vein | Normal Vein |
| (i) | It carries blood from lungs to heart. | It carries blood from parts of body to heart. |
| (ii) | It carries oxygenated blood. | It carries deoxygenated blood. |
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Tamilnadu Stateboard 10th Standard Subjects
Tamilnadu Stateboard Standards
