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Subject: Biology, asked on 31/12/18

A human RBC is placed in a 1.5 percent salt solution. It will

Subject: Biology, asked on 5/12/18

Pls answer Q21 and 22

Subject: Biology, asked on 4/12/18

___________ refers to an exercise blood nitrogen compound.

Subject: Biology, asked on 15/11/18

Two types of hearts??

Subject: Biology, asked on 28/10/18

1)for safe blood transfusion
recipient rbs should not contain antibodies against donors antigens
donors RBC should not contain antibodies against recipient serum
recipient serum should not contain antigens against donors antibodies
recipient serum should not contain antigens against donors antibodies

why is the word serum used here ?? what will be the ans of this explain.

2)what is the condition of joint diastole and in whch stage of cardiac cycle 2nd heart sound occur?

pls ans all  the questions ihave asked as exam tomorrow

 

Subject: Biology, asked on 28/10/18

1)the immunity obtained after body has recovered from a disease is
active immunity
passive immunity
both
none 

2)the sequence of cardiac cycle is
atrial systole ,ventricular systole, joint diastole
diastole , atrial systole , ventricular diastole
atrial systole, ventricular diastole ,ventricular systole
ventricular diastole, diastole ,ventricular systole , atrial systole

pls give the ans to these 2 mcqs with reason

Subject: Biology, asked on 28/10/18

1)when blood of one person is linked with the the serum of another person then in certain cases clumping of rbc takes place due to
antigen antibody reaction
antitoxin antibody reaction
hemolysis
blood coagulation

2) what is the reason that child cannot get blood group ab when parents hav blood group ab and o?
gene o is dominant
gene a is dominant
gene a or b is absent in one of the parents
gene a and b are absent in one of the parents
(i have confusion in last 2 options of ths question,,)

pls tell the ans of these 2 mcqs with explanation

 

Subject: Biology, asked on 28/10/18

is blood pressure the pressure of blood on walls of arteries only or both arteries and veins? and from where pulse beat is measured --artery or vein?

Subject: Biology, asked on 28/10/18

1)whch statement is more correct-
gaseous exchange occurs through cappilary wall or
gaseous exchange occurs in alveolar cavity

2)when whole blood stored with an anticoagulant at 4 degree Celsius the potassium moves out from rbc into plasma.
reason for it is
RBC heamolyse and hence leakage of k
k becomes more mobile at 4 degree 
active transport ceases resulting in ionic equilibrium

pls asnwer these two mcqs with explanations 
 

Subject: Biology, asked on 26/10/18

What will be theanswer for this one?

Subject: Biology, asked on 4/9/18

Why fish heart pump only deoxygenated blood?

Subject: Biology, asked on 31/8/18

Please ans q17

Subject: Biology, asked on 31/8/18

Please ans q15

Subject: Biology, asked on 3/8/18

Pls answer this fast

Subject: Biology, asked on 27/7/18

In double circulation , the heart pumps fixed blood to the body parts. Does this means that the deoxygenated blood is also circulated again ?

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