CBSE Questions for Class 11 Medical Biology Body Fluids And Circulation Quiz 1 - MCQExams.com

Mammalian erythrocytes have short life span due to absence of
  • Endoplasmic reticulum
  • Mitochondria
  • Nucleus
  • Golgi complex.
Which of these produces antibodies?
  • Macrophages
  • Plasma cells/Lymphocytes
  • Mast cells
  • Fibroblasts.
Radha, Bhoju, Raman, Raghu, labelled the given pictures in the following order which is correct one.
1106351_038a0f2c80dc4fbbbd3bdad35d5d3338.jpg
  • Eosinophils, Neutrophils, Basophils, lymphocytes
  • Neutrophils, eosinophils, lymphocytes, Basophils
  • Neutrophils, lymphocytes, basophils, eosinophils
  • Basophils, lymphocytes, eosinophils, neutrophils
Nucleus of granular WBC is mainly
  • Spindle 
  • Round
  • Oval 
  • Lobed
Which of the following is an oxygen carrier?
  • RBC
  • RBC and plasma
  • RBC and WBC
  • RBC, WBC and plasma
Life span of blood platelets is
  • 1 - 2 days
  • 2 - 3 days
  • 3 - 4 days
  • 5 - 9 days.
Blood group agglutinogen is
  • Phosphoprotein
  • Glycoprotein
  • Haemoprotein
  • Phospholipid.
Thromboplastin required for blood clotting at the place of injury is released by
  • Blood platelets
  • Eosinophils
  • Neutrophils
  • Lymphocytes.
The function of vitamin K is in
  • Regulation of calcium and phosphorus metabolism
  • Blood clotting
  • Respiration
  • Carbohydrate metabolism
Human red blood cells are _______________ in shape.
  • Elongated
  • Biconcave
  • Spindle
  • Sickle
Pulmonary arteries carry ______
  • Oxygenated blood to lungs
  • Deoxygenated blood to heart
  • Deoxygenated blood to lungs
  • Oxygenated blood to heart
The oxygenated blood from the lungs first enters the _______
  • Right atrium
  • Left atrium
  • Right ventricle
  • Left ventricle
Match the items given in Column I with those in Column II and select the correct options given below:
Column I Column II
a.Fibrinogen 1Osmotic balance 
b.Globulin 2Blood clotting 
c.Albumin 3Defence mechanism
  • $$A-1,B-3,C-2$$
  • $$A-3,B-2,C-1$$
  • $$A-2,B-3,C-1$$
  • $$A-1,B-2,C-3$$
Frogs differ from humans in possessing
  • Paired cerebral hemispheres
  • Hepatic portal system
  • Nucleated red blood cells
  • Thyroid as well as parathyroid
Which one of the following animals has two separate circulatory pathways?
  • Shark
  • Frog
  • Lizard
  • Whale
In the extrinsic clotting pathway, the active factor VII activates which factors?
  • X and XI
  • IX and XI
  • IX and X
  • XI and XII
Blood pressure in the mammalian aorta is maximum during
  • Systole of the left ventricle
  • Diastole of the right atrium
  • Systole of the left atrium
  • Diastole of the right ventricle
Match the following columns and select the correct option.

Column - IColumn - II
(a)Eosinophils(i)Immune response
(b)Basophils(ii)Phagocytosis
(c)Neutrophils(iii)Release histaminase, destructive
enzymes
(d)Lymphocytes(iv)Release granules containing histamine
  • $$(a)- (iv), \ (b)- (i), \ (c)- (ii), \ (d)- (iii)$$
  • $$(a)- (i), \ (b)- (ii), \ (c)- (iv), \ (d)- (iii)$$
  • $$(a)- (ii), \ (b)- (i), \ (c)- (iii), \ (d)- (iv)$$
  • $$(a)- (iii), \ (b)- (iv), \ (c)- (ii), \ (d)- (i)$$
In mammals, which blood vessel would normally carry largest amount of urea?
  • Renal Vein
  • Dorsal Aorta
  • Hepatic Vein
  • Hepatic Portal Vein
In human body, toxic substances are detoxified in 
  • Kidney
  • Lungs
  • Liver
  • Stomach
Humans have an open circulatory system
  • True
  • False
Which of the following statement is correct ?
  • Deoxygenated blood is poured into right atrium of heart.
  • The excretory units of flat worms are flame cells.
  • Human kidney has about 1 million nephridia.
  • Both A and B.
Which of the following parts of heart first receives deoxygenated blood?
  • Right ventricle
  • Left auricle
  • Right auricle
  • Left ventricle
Coronary artery supplies blood to
  • Mammary glands
  • Rib muscles
  • Skin
  • Heart
Which of the following does not help in clotting of blood?
  • Heparin
  • Prothrombin
  • Ca$$^{2+}$$
  • Exposure to O$$_2$$
The process of blood clot formation within the circulatory system is
  • Thrombosis
  • Thrombocytes
  • Thrombin
  • Thrombocytopenia
Which of the following is not a type of WBC?
  • Neutrophils
  • Eosinophils
  • Basophils
  • Erythrocytes
The heart beat increases at the time of interview due to
  • Corticotrophic hormone
  • Hyper secretion of renin
  • Secretion of adrenaline
  • Antidiuretic hormone secretion
Which of the following is anucleate?
  • Squamous epithelial cell
  • Mature human erythrocyte
  • Mature frog erythrocyte
  • Human osteocyte
Antigen-A and antibody-B are present in which blood group:
  • B
  • A
  • AB
  • O
Blood platelets occur in the blood of ____________.
  • Birds
  • Mammals
  • Reptiles
  • Amphibians
 Heart rate of man is mainly controlled by
  • SA node
  • Ventricles
  • Purkinje fibers
  • AV node
Iron $$\left(Fe\right)$$ ions are present in 
  • Histone
  • Catalase
  • Chlorophyll
  • Haemoglobin
  • RNA polymerase
Thromboplastin required in blood clotting is secreted by
  • Erythrocytes
  • Monocytes
  • Lymphocytes
  • Platelets
Vitamin needed for blood coagulation is
  • E
  • D
  • K
  • C
A clot of blood contains
  • Prothrombin
  • Fibrinogen
  • Fibrin
  • Thrombin
Systole of heart is initiated by 
  • SA node
  • AV node
  • Purkinje fibers
  • None of the above
Cells which lose their nucleus during differentiation are 
  • Nerve cells
  • Muscle cells
  • Erythrocytes
  • Leucocytes
The time taken for the atrial systole is 
  • 0.56 s
  • 0.1 s
  • 0.3 s
  • 0.8 s
Contraction of heart is 
  • Diastole
  • Systole
  • Joint diastole
  • None of the above
Lymph contains ........... proteins than plasma.
  • Less
  • More
  • Equal
  • None of the above
Blood clotting involves the conversion of
  • Prothrombin to thromboplastin
  • Thromoboplastin to prothrombin
  • Fibrinogen to fibrin
  • Fibrin to fibrinogen
Biconcave disc like shape of RBC helps in _________.
  • Absorption of oxygen
  • Transportation of gases
  • Both A and B
  • None of these
WBC is devoid of
  • Haemoglobin
  • Nucleus
  • Cytoplasm
  • None of the above
Decastello and Sturli discovered
  • Blood group A
  • Blood group B
  • Blood group AB
  • Blood group O
DNA is absent in _______________.
  • Mature spermatozoan
  • Mature RBC
  • Hair root
  • ovum
In Camel, erythrocytes are
  • Circular, biconcave, non-nucleated
  • Oval and nucleated
  • Circular, biconcave and nucleated
  • Oval and non-nucleated
Name of cells which help in clotting of blood in mammals ____________.
  • Platelets
  • Thrombocytes
  • Lymphocytes
  • Monocytes
Platelets are a source of ______________.
  • Fibrinogen
  • Calcium
  • Thromboplastin
  • Haemoglobin
Smallest human cells are
  • Leucocytes
  • Erythrocytes
  • Liver cells
  • Sperms
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