Subject

Biology

Class

NEET Class 12

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 Multiple Choice QuestionsMultiple Choice Questions

11.

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

  • obtain antibiotics 

  • purify enzymes

  • degrade sewage

  • degrade sewage


B.

purify enzymes

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

975 Views

12.

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


A.

63

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

729 Views

13.

Organisms called Methanogens are most abundant in a 

  • cattle yard

  • polluted stream

  • hot spring

  • hot spring


A.

cattle yard

Organisms called Methanogens are most abundant in a 

529 Views

14.

Important  site for formation of glycoproteins and glycolipids is

  • Golgi apparatus 

  • plastid

  • lysosome

  • lysosome


A.

Golgi apparatus 

Important  site for formation of glycoproteins and glycolipids is

385 Views

15.

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


C.

The food is ground by mandibles and gizzard

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

407 Views

16.

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


C.

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

Select the correct option with respect to mitosis

362 Views

17.

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


D.

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

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

347 Views

18.

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

  • Rennin

  • Lipase

  • Trypsin

  • Trypsin


D.

Trypsin

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

493 Views

19.

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 


A.

Vitamin -C 

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

444 Views

20.

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

  • Serum amylase

  • A globulin

  • Fibrinogen 

  • Fibrinogen 


C.

Fibrinogen 

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

337 Views