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The thinnest blood vessels in the human body are

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Important Questions on Transportation in Animals and Plants

EASY
Science>Biology>Transportation in Animals and Plants>Circulatory System
If the RBCs of a blood sample are agglutinated when mixed with anti B antibodies, then the blood group of the blood sample is
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Science>Biology>Transportation in Animals and Plants>Circulatory System
A person with blood group AB has
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Science>Biology>Transportation in Animals and Plants>Circulatory System
A sample of blood shows clumping with antiserum A but not with antiserum B. The blood group would be
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Science>Biology>Transportation in Animals and Plants>Circulatory System
Which enzyme is responsible for the conversion of inactive fibrinogens to fibrins?
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Science>Biology>Transportation in Animals and Plants>Circulatory System
How many arteries are there in an umbilical cord?
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Science>Biology>Transportation in Animals and Plants>Circulatory System

Study the following.
A) Blood coagulation is also called haemolysis.
B) Blood clotting is a change in plasma.
C) Serum does not contain clotting factors like prothrombin and fibrinogen.
D) Proconvertin is involved in extrinsic pathway.

Select the incorrect statement.

EASY
Science>Biology>Transportation in Animals and Plants>Circulatory System
Person with blood group AB is considered as universal recipient because he has:
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Science>Biology>Transportation in Animals and Plants>Circulatory System

The organisation which procures and supplies blood during an emergency.

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Science>Biology>Transportation in Animals and Plants>Circulatory System
In which animal open blood vascular system is found?
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Science>Biology>Transportation in Animals and Plants>Circulatory System
Which one of the following is correct?
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Science>Biology>Transportation in Animals and Plants>Circulatory System
Persons with 'AB' blood group are called as "Universal recipients". This is due to:
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Science>Biology>Transportation in Animals and Plants>Circulatory System
Stroke could be prevented/treated with:
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Science>Biology>Transportation in Animals and Plants>Circulatory System
Clotting of blood in blood banks can be prevented by the addition of
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Science>Biology>Transportation in Animals and Plants>Circulatory System
When a blood vessel is injured a number of physiological mechanisms are activated that promote hemostasis. Identify the correct group from the following:
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Science>Biology>Transportation in Animals and Plants>Circulatory System
A certain road accident patient with unknown blood group needs immediate blood transfusion. His own doctor friend at once offers his blood. What was the blood group of the donor?
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Science>Biology>Transportation in Animals and Plants>Circulatory System
Explain how body will react to the situations described below:
A foreign antigen reaches one's blood.
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Science>Biology>Transportation in Animals and Plants>Circulatory System
How many types of blood groups are found in human beings? Which blood group is a universal donor?
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Science>Biology>Transportation in Animals and Plants>Circulatory System
A person with blood group "A" can (i) donate blood to, and (ii) receive blood from:
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Science>Biology>Transportation in Animals and Plants>Circulatory System
Adult human RBCs are enucleate. Which of the following statement(s) is/are most appropriate explanation for this feature?

(i) They do not need to reproduce

(ii) They are somatic cells

(iii) They do not metabolize

(iv) All their internal space is available for oxygen transport
HARD
Science>Biology>Transportation in Animals and Plants>Circulatory System

Which of the following has no role in blood clotting?