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What is the respiratory pigment in human beings?

Important Questions on Structural Organisation in Animals

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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.

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Microscopic examination of a blood smear reveals an abnormal increase in the number of granular cells with multiple nuclear lobes. Which one of the following cell types has increased in number?
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Which one of the following is incorrect regarding WBCs?

(a) Monocytes migrate from the bloodstream to other tissues and differentiate into tissue-resident macrophages, Kupffer cells in the liver.

(b) Eosinophils modulate allergic inflammatory responses.

(c) Basophils release histamine for inflammatory response.

(d) Natural killer cells are a type of phagocytic erythrocytes.

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Study the following statements and identify the correct statements-
I) Microglial cells keep the cerebrospinal fluid in the ventricles of brain in constant circulation
II) Arrector pili muscles are unstriated muscles
III) Basophils remove antigen-antibody complexes from the blood
IV) Perichondrium is absent in fibrous cartilage

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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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Statement I : Tendons attach one bone with another bone.
Statement II : Epiglottis is formed by elastic cartilage.

The correct option among the following is

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The erythrocytes in a frog as compared to those in humans are
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RBCs respire anaerobically because they do not possess any mitochondria. 
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Which of the following mammalian cells is not capable to metabolise glucose to carbon-dioxide aerobically?
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Given below a diagram of a type of WBC. Identify and select the correct option.
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