Biology - Comprehensive Mock Test 45

Question 441 Easy

In developing embryo RBCs are formed in ?

A) Lymph node B) Bone marrow C) Liver D) Spleen

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Question 442 Hard

In a standard ECG which one of the following alphabets is the correct representation of the respectively activity of the human heart?

A) P-depolarisation of atria B) R-repolarisation of ventricles C) S-start of systole D) T-end of diastole

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Question 443 Medium

In a cardiac output of 5250 ml/minute, with 75 heart beats per minute, the stroke volume is ?

A) 80 ml B) 70 ml C) 60 ml D) 55 ml

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Question 444 Easy

Hepatic portal system connects ?

A) Liver to digestive system B) Kidney to liver C) Digestive system to liver D) Liver to kidneys

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Question 445 Easy

Heparin is produced by ?

A) Liver cells B) Plasma cells C) Blood cells D) Spleen cells

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Question 446 Easy

Murmur is a disorder of ?

A) SA node B) AV node C) Heart valves D) Pulmonary vein

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Question 447 Easy

Heparin is ?

A) Anti-allergic B) Blood diluter C) Anticoagulant D) Antiseptic

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Question 448 Medium

The kind of epithelium which forms the inner walls of blood vessels is ?

A) Squamous epithelium B) Cuboidal epithelium C) Columnar epithelium D) Ciliated columnar epithelium

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Question 449 Easy

Largest amount of urea is normally carried by ?

A) Hepatic portal vein B) Renal artery C) Hepatic artery D) Hepatic vein

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Question 450 Hard

The most popularly known blood grouping is the ABO grouping. It is named ABO and not ABC because ‘‘O’’ in it refers to having ?

A) No antigens A and B on RBCs B) Other antigens besides A and B on RBCs C) Overdominance of this type on the genes for A and B types D) One antibody only–either anti–A or anti–B on the RBCs

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