Body Fluids and Circulation Test

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Body Fluids and Circulation Test - 22

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Question 1
1 / -0

Blood clotting requires

A
Na$$^+$$ and K$$^+$$

B
Na$$^+$$ and prothrombin

C
Na$$^+$$ and thromboplastin

D
Ca$$^{++}$$ and thromboplastin

Solution

Blood clotting requires Ca$$^{++}$$ and thromboplastin. Coagulation is the process by which blood changes from a liquid to a gel. Thromboplastin is released from the platelets at the site of injury and it converts the prothrombin into the thrombin which is the initial step in the process of blood clotting. Calcium ion acts as a cofactor for the reaction. Thus, the correct answer is option D.
Question 2
1 / -0

The process by which blood cells are formed in the bone marrow is

A
Haemopoiesis.

B
Haemolysis.

C
Thrombopoiesis.

D
Erthroblastosis.

Solution

Haemopoiesis is the process, by which blood cells are formed in bone marrow. Haematopoiesis is the formation of blood cellular components. All cellular blood components are derived from haematopoietic stem cells. In a healthy adult person, thousands of new blood cells are produced daily in order to maintain steady state levels in the peripheral circulation.
Question 3
1 / -0

Which of the following is found more in lymph than in blood?

A
RBC

B
Haemoglobin

C
Fats

D
All of the above

Solution

Lymph carries digested and absorbed fats from the intestine. Therefore, lymph carries more fats than in blood. Lymph does not contain RBCs and hence, no haemoglobin.
So, the correct answer is option C.
Question 4
1 / -0

Which of the following is correctly matched for diseases in humans?

A
Hypertension increase in sytolic blood pressure about 130-140 mm hg and diastolic blood pressure 90-100 mm hg.

B
Arteriosclerosis hardening of arteries due to deposition of calcium salts resulting in plaque formation.

C
Atherosclerosis inelastic arteries.

D
All of the above.

Solution

A. The systolic blood pressure is the pressure that develops in arteries when the ventricles contract and the diastolic pressure develops when the ventricles relax. The normal range of blood pressure is 120/80 mm Hg. In hypertension, the blood pressure elevates to 130-140 mm Hg systolic and 90-100 mm Hg diastolic pressure.
B. Arteriosclerosis occurs due to deposition of plaque in the arteries. This can occur due to deposition of calcium, cholesterol etc. It is linked with hypertension and Diabetes Miletus.
C. Atherosclerosis results due to building up of fatty deposits in arteries due to which they become inelastic.
Hence, the correct answer is 'All of the above'.
Question 5
1 / -0

Which of following act as middleman?

A
WBC

B
Lymph

C
Plasma

D
Blood
Solution
- Lymph acts as middle man which transports food materials, oxygen, hormones etc. to the body cells and brings carbon dioxide and other metabolic wastes from the body cells to blood when it pours the same into venous system.
- Lymph differs from blood as it is composed of only WBC.
- Lymph is the fluid, which forms an integral part of the lymphatic system.
- It is formed when the interstitial fluid is collected through lymph capillaries.
- It is then transported through lymph vessels to lymph nodes before emptying ultimately into the right or the left subclavian vein, where it mixes back with blood.
So, the correct answer is option B.
Question 6
1 / -0

Which of the following has least consistency in shape?

A
RBCs

B
WBCs

C
Mast cells

D
Bone cells

Solution

WBCs act as phagocytes. It stretches itself around a foreign body (bacteria) and engulfs it. This process protects our body from harmful foreign particles. To assist this process, a WBC has an amoeboid shape. Hence, they have the least consistency in shape. Hence, the correct answer is B.
Question 7
1 / -0

Blood clot takes place mainly due to

A
Fibrin and corpuscles

B
Heparin and corpuscles

C
Plasma and corpuscles

D
Plasma and RBC

Solution

Blood is composed of plasma and several kinds of cells. These blood cells consist of erythrocytes (red blood cells), leukocytes (white blood cells) and thrombocytes (platelets). Thrombocytes are blood cells, which along with the coagulation factors, fibrin take part in blood clotting (coagulation) by creating a mesh, through which blood cells can not pass.
Question 8
1 / -0

Which of the following is correctly matched for diseases in humans?

A
Hypertension - increase in blood pressure, about 130-140 mm Hg systolic and 90-100 mm Hg diastolic

B
Arteriosclerosis - hardening of arteries due to deposition of calcium salts resulting in plaque formation

C
Atherosclerosis - inelastic arteries

D
All of the above

Solution

Hypertension is referred to as high blood pressure greater than 120/80 mm Hg.
Arteriosclerosis is the hardening and thickening of the walls of the arteries and can occur because of fatty deposits on the inner lining of the arteries, calcification of the wall of arteries or thickening of the muscular wall of the arteries from chronically elevated blood pressure.
Atherosclerosis is a specific type of arteriosclerosis, where there is buildup of fats, cholesterol and other substances in and on the artery walls as plaques, which can restrict blood flow and make arteries inelastic.
Thus, the correct answer is option D.
Question 9
1 / -0

Lymph differ from blood in possessing:

A
Only WBC

B
More RBC and WBC

C
More RBC and few WBC

D
More WBC and few RBC
Solution
Lymph differs from blood in possessing only WBC (Lymphocytes).
Lymph is a colourless fluid that circulates throughout the lymphatic system.
It contains white blood cells and certain proteins while RBCs and platelets are absent.
So, the correct answer is option A.
Question 10
1 / -0

Nucleus of granular WBC is mainly

A
Spindle

B
Round

C
Oval

D
Lobed

Solution

Granular WBCs are polymorphonuclear cells and have a multilobed nucleus with the lobes joined by nuclear threads. Eosinophils have a bilobed nucleus while basophils are characterized by the presence of a U-shaped or lobed nucleus. The correct answer is D.

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Body Fluids and Circulation Test - 22

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Body Fluids and Circulation Test - 22

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Question 1

Na$$^+$$ and K$$^+$$

Na$$^+$$ and prothrombin

Na$$^+$$ and thromboplastin

Ca$$^{++}$$ and thromboplastin

Solution

Question 2

Haemopoiesis.

Haemolysis.

Thrombopoiesis.

Erthroblastosis.

Solution

Question 3

RBC

Haemoglobin

Fats

All of the above

Solution

Question 4

Hypertension increase in sytolic blood pressure about 130-140 mm hg and diastolic blood pressure 90-100 mm hg.

Arteriosclerosis hardening of arteries due to deposition of calcium salts resulting in plaque formation.

Atherosclerosis inelastic arteries.

All of the above.

Solution

Question 5

WBC

Lymph

Plasma

Blood

Solution

Question 6

RBCs

WBCs

Mast cells

Bone cells

Solution

Question 7

Fibrin and corpuscles

Heparin and corpuscles

Plasma and corpuscles

Plasma and RBC

Solution

Question 8

Hypertension - increase in blood pressure, about 130-140 mm Hg systolic and 90-100 mm Hg diastolic

Arteriosclerosis - hardening of arteries due to deposition of calcium salts resulting in plaque formation

Atherosclerosis - inelastic arteries

All of the above

Solution

Question 9

Only WBC

More RBC and WBC

More RBC and few WBC

More WBC and few RBC

Solution

Question 10

Spindle

Round

Oval

Lobed

Solution

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