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Published on: 09/09/2019
Zoology - Body Fluids and Circulation
Download Tamil Nadu 11th Standard Biology 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 Biology Test1.
At the venous end of the capillary bed, the osmotic pressure is _____.
Greater than the hydrostatic pressure
Result in net outflow of fluids
Results in net absorption of fluids
No change occurs
2.
3.
4.
Blood group is due to the presence or absence of surface _______.
Antigens on the surface of WBC
Antibodies on the surface of RBC
Antigens on the surface of RBC
Antibodies on the surface of WBC
5.
Which of these functions can be carried out by a red blood cell?
Protein synthesis
Cell division
Lipid synthesis
Active transport
6.
Which one of the following plasma proteins is involved in the coagulation of blood?
Globulin
Fibrinogen
Albumin
Serum amylase
7.
What is the function of lymph?
Transport of O2 into brain
Transport of CO2 into lungs
Bring interstitial fluid in blood
Bring RBC and WBC in lymph node
8.
What might be the effect on a person whose diet has less iron content?
9.
Right ventricular wall is thinner than the left ventricular wall. Why?
10.
Distinguish between mitral valve and semilunar valve.
11.
12.
Name and Label the given diagrams to show A, B, C, D, E, F, and G
13.
14.
What are the heart sounds? When and how are these sounds produced?
1.
(a)
Greater than the hydrostatic pressure
2.
(c)
3.
(c)
4.
(c)
Antigens on the surface of RBC
5.
(d)
Active transport
6.
(b)
Fibrinogen
7.
(c)
Bring interstitial fluid in blood
8.
If a person diet does not contain iron, the synthesis of haemoglobin is lowered in bone marrow because each haemoglobin consists of 4 iron atoms to accept 4 O2
9.
(i) Right ventricular wall is thinner because the pulmonary artery transports deoxygenated blood to lungs so that much force/pressure is not needed.
(ii) Left ventricular wall is thicker because the aorta has to pump out the blood from the heart to supply oxygenated blood to all the parts of the body and needs more pressure.
10.
| S.No. | Mitral Valve | semilunar Valve |
| 1. | Found between left atrium and left ventricle. | Found at the entry of pulmonary artery and aorta. |
| 2. | Has two flaps or cusps. | Has three flaps or cusps. |
| 3. | Appear as flaps. | Appear as half moon shaped. |
| 4. | Prevents the backword flow of oxygenated blood from left ventricle to left atrium. |
Prevents the backward flow of deoxygenated blood into right ventricle and oxygenated blood into left ventricle. |
| 5. | Also called as bicuspid valve. | Also called as pulmonary or aortic valves. |
11.
12.
A. Aortic arch
B. Left Pulmonary Artery
C. Left Pulmonary Vein
D. Semilunar Valve
E. Left Ventricle
F. Right Ventricle
G. Inferior Vena Cava
13.
14.
There are usually two heart sounds they are
(i) 'lub' sound: It is the 1st sound produced by the closure of atrio ventricular valves (both tricuspid and bicuspid valves).
(ii) 'dub' sound: It is the 2nd sound produced by the closure of semilunar valves (both pulmonary aortic valves).
(iii) A 3rd abnormal sound may be produced with vibrations as "murmuring" under the dis-order of heart.
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Tamilnadu Stateboard 11th Standard Subjects
Maths
Commerce
Economics
Biology
Business Maths and Statistics
Accountancy
Computer Science
Physics
Chemistry
Maths
Biology
Economics
Physics
Chemistry
History
Business Maths and Statistics
Computer Science
Accountancy
Computer Applications
History
Computer Technology
Commerce
Computer Applications
Computer Technology
Tamil
English
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