Subject

Biology

Class

NEET Class 12

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 Multiple Choice QuestionsMultiple Choice Questions

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21.

Aerobic respiratory pathway is appropriately termed

  • catabolic

  • parabolic

  • amphibolic

  • amphibolic


C.

amphibolic

An amphibolic pathway is a biochemical pathway that serves both anabolic and catabolic processes. An important example of an amphibolic pathway is the Kerbs cycle, which involves both the catabolism of carbohydrates and fatty acid and the synthesis, eg alpha-ketoglutarate and oxaloacetate. 

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22.

Cytoskeleton is made up of 

  • calcium carbonate granules

  • callose deposits

  • cellulosic microfibrils

  • cellulosic microfibrils

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23.

Compared to blood our Lymph has

  • no plasma

  • plasma without proteins

  • more WBCs and no RBCs

  • more WBCs and no RBCs

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24.

Given below is a schematic break-up of the phase/stages of cell cycle



Which one of the following is the correct indication of the stage/phase in the cell cycle?

  • B -Metaphase

  • C-karyokinesis

  • D-Synthetic phase

  • D-Synthetic phase

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25.

The floral formula  is that of

  • tulip

  • soybean

  • sun hemp

  • sun hemp

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26.

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

  • other antigens besides A and B on RBCs

  • over dominance of this type on the genes for A and B types

  • one antibody only-either anti-A or anti- B on the RBCs

  • one antibody only-either anti-A or anti- B on the RBCs

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27.

Which one of the following statement is true regarding digestion and absorption of food in humans?

  • Oxyntic cells in our stomach secrete the proenzyme pepsinogen.

  • Fructose and amino acids are absorbed through intestinal mucosa with the help of carrier ions like Na+

  • Chylomicrons are small Lipoprotein particles that are transported from the intestine into blood capillaries.

  • Chylomicrons are small Lipoprotein particles that are transported from the intestine into blood capillaries.

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28.

Anatomically fairly old dicotyledonous root is distinguished from the dicotyledonous by 

  • the absence of secondary xylem

  • the absence of secondary phloem

  • the presence of cortex

  • the presence of cortex

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29.

Manganese is required in 

  • nucleic acid synthesis

  • plant cell wall formation

  • photolysis of water during photosynthesis

  • photolysis of water during photosynthesis

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30.

Phylogenetic system of classification is based on 

  • evolutionary relationships

  • morphological features

  • chemical constituents

  • chemical constituents

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