Match List-I with List-II.

NEET-2023 [Body-Fluids-and-Circulation] [class-xi ]

• A-I, B-II, C-III, D-IV
• A-III, B-I, C-IV, D-II
• A-IV, B-III, C-II, D-I
• A-II, B-IV, C-I, D-III
Correct Option: B  [ A-III, B-I, C-IV, D-II ]

Remark:

Which of the following statements are correct?
A.Basophils are most aboundant cell of the total WBCs.
B.Basophils secrete histamine, serotonin and heparin.
C.Basophils are involved in inflammatory response.
D.Basophils have kidney shaped nucleus.
E.Basophil are agranulocyte.
Choose the correct answer from the options given below:

NEET-2023 [Body-Fluids-and-Circulation] [class-xi ]

• A and B only
• D and E only
• C and E only
• B and C only
Correct Option: D  [ B and C only ]

Remark:

Given below are two statements:
Statement I: The coagulum is formed of network of threads called thrombins.
Statement II: Spleen is the graveyard of erythrocytes.
In the light of the above statements, choose the most appropriate answer from the options given below:

NEET-2022 [Body-Fluids-and-Circulation] [class-xi ]

• Both Statement I and Statement II are incorrect
• Statement I is correct but Statement II is incorrect
• Statement I is incorrect but Statement II is correct
• Both Statement I and Statement II are correct
Correct Option: C  [ Statement I is incorrect but Statement II is correct ]

Remark:

Which one of the following statements is correct?

NEET-2022 [Body-Fluids-and-Circulation] [class-xi ]

• The tricuspid and the bicuspid valves open due to the pressure exerted by the simultaneous contraction of the atria
• Blood moves freely from atrium to the ventricle during joint diastole.
• Increased ventricular pressure causes closing of the semilunar valves.
• The atrio-ventricular node (AVN) generates an action potential to stimulate atrial contraction
Correct Option: B  [ Blood moves freely from atrium to the ventricle during joint diastole. ]

Remark:

Which enzyme is responsible for the conversion of inactive fibrinogens to fibrins?

NEET-2021 [Body-Fluids-and-Circulation] [class-xi ]

• Thrombin
• Renin
• Epinephrine
• Thrombokinase
Correct Option: A  [ Thrombin ]

Remark:

Persons with 'AB' blood group are called as "Universal recipients". This is due to:

NEET-2021 [Body-Fluids-and-Circulation] [class-xi ]

• Absence of antigens A and B on the surface of RBCs
• Absence of antigens A and B in plasma
• Presence of antibodies, anti-A and anti-B, on RBCs
• Absence of antibodies, anti-A and anti-B, in plasma
Correct Option: D  [ Absence of antibodies, anti-A and anti-B, in plasma ]

Remark:

Match the following columns and select the correct option.

NEET-(Sept)2020 [Body-Fluids-and-Circulation] [class-xi ]

• (A)-(III), (B)-(IV), (C)-(II), (D)-(I)
• (A)-(IV), (B)-(I) (C)-(II), (D)-(III)
• (A)-(I), (B)-(II, (C)-(IV), (D)-(III)
• (A)-(II), (B)-(I), (C)-(III), (D)-(IV)
Correct Option: A  [ (A)-(III), (B)-(IV), (C)-(II), (D)-(I) ]

Remark:

The QRS complex in a standard ECG represents:

NEET-(Sept)2020 [Body-Fluids-and-Circulation] [class-xi ]

• Repolarisation of auricles
• Depolarisation of auricles
• Depolarisation of ventricles
• Repolarisation of ventricles
Correct Option: C  [ Depolarisation of ventricles ]

Remark:

Which of the following conditions cause erythroblastosis foetalis ?

NEET-(Oct)2020 [Body-Fluids-and-Circulation] [class-xi ]

• Mother Rh^+ve and foetus Rh^–ve
• Mother Rh^–ve and foetus Rh^+ve
• Both mother and foetus Rh^–ve
• Both mother and foetus Rh^+ve
Correct Option: B  [ Mother Rh^–ve and foetus Rh^+ve ]

Remark:

Which would be the heart rate of a person if the cardiac output is 5L, blood volume in the ventricles at the end of diastole is 100 mL and at the end of ventricular systole is 50 mL?

NEET-2019 [Body-Fluids-and-Circulation] [class-xi ]

• 50 beats per minute
• 100 beats per minute
• 75 beats per minute
• 125 beats per minute
Correct Option: B  [ 100 beats per minute ]

Remark: