Which one of the following plasma proteins is involved in the co

Subject

Biology

Class

NEET Class 12

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 Multiple Choice QuestionsMultiple Choice Questions

11.

Organisms called Methanogens are most abundant in a 

  • cattle yard

  • polluted stream

  • hot spring

  • hot spring

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12.

Which of the following enzymes carries out initial step in the digestion of milk in humans?

  • Rennin

  • Lipase

  • Trypsin

  • Trypsin

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13.

The purplish red pigment rhodopsin contained in the rods type of photoreceptor cells of the human eyes is a derivative of 

  • Vitamin -C 

  • Vitamin -D 

  • Vitamin - A 

  • Vitamin - A 

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14.

Continuous addition of sugars in 'fed-batch' fermentation is done to

  • obtain antibiotics 

  • purify enzymes

  • degrade sewage

  • degrade sewage

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15.

What would be the number of chromosomes of the aleurone cells of a plant with 42 chromosomes in its root tip cells? 

  • 63

  • 84

  • 21

  • 21

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16.

Which one of the following plasma proteins is involved in the coagulation of blood? 

  • Serum amylase

  • A globulin

  • Fibrinogen 

  • Fibrinogen 


C.

Fibrinogen 

Fibringoen (factor 1) is a soluble plasma glycoprotein, synthesised by the liver. It is converted by thrombin inot fibrin during blood coagulation. Fibrin is the cross - linked by factor XIII to form a clot. 

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17.

Important  site for formation of glycoproteins and glycolipids is

  • Golgi apparatus 

  • plastid

  • lysosome

  • lysosome

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18.

Which of the following are correct states as it happens in the common cockroach?

  • Oxygen is transported by haemoglobin in blood 

  • Nitrogenous excretory products is urea

  • The food is ground by mandibles and gizzard

  • The food is ground by mandibles and gizzard

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19.

Which one of the following correctly explains the function of a specific part of a human nephron?

  • Henle's loop - most reabsorption of the major substances from the glomerular filtrate

  • Distal convoluted - reabsorption of ion into the surrounding blood capillaries

  • Afferent arteriole - carries the blood away from the glomerulus towards renal vein

  • Afferent arteriole - carries the blood away from the glomerulus towards renal vein

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20.

Select the correct option with respect to mitosis

  • Chromatids start endoplasmic 

  • Golgi complex and endoplasmic reticulum are still visible at the end of prophase

  • chromosomes move to the spindle equator and get aligned along equatorial plate in metaphase

  • chromosomes move to the spindle equator and get aligned along equatorial plate in metaphase

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