The solid linear cytoskeletal elements having a diameter of 6nm and made up of a single
type of monomer are known as
1. microtubules
2. microfilaments
3. intermediate filaments
4. lamins
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyThe osmotic expansion of a cell kept in water is chiefly regulated by
1. mitochondria
2. vacuoles
3. plastids
4. ribosomes
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyThe motile bacteria are able to move by
1. fimbriae
2. flagella
3. cilia
4. pili
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyA major site for synthesis of lipids is
1. RER
2. SER
3. symplast
4. nucleoplasm
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyThe Golgi complex plays a major role:
(1) in trapping the light and transforming it into chemical energy
(2) in digesting proteins and carbohydrates
(3) as energy transferring organelles
(4) in post translational modification of proteins and glycosidation of lipids
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyRibosomal RNA is actively synthesized in
1. lysosomes
2. nucleolus
3. nucleoplasm
4. ribosomes
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyWhat is true about ribosomes?
1. The prokaryotic ribosomes are 80 S, where S stands for sedimentation coefficient
2. These are composed of ribonucleic acid and proteins
3. These are found only in eukaryotic cells
4. These are self-splicing introns of some RNAs
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologySelect the correct statement from the following regarding cell membrane.
1. Na+ and K ions move across cell membrane by passive transport
2. Proteins make up 60 to 70% of the cell membrane
3. Lipids are arranged in a bilayer with polar heads towards the inner part
4. Fluid mosaic model of cell membrane was proposed by Singer and Nicolson
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyImportant site for formation of glycoproteins and glycolipids is
1. Golgi apparatus
2. plastid
3. Lysosome
4. vacuole
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyWhich one of the following also act as a ribozyme in a bacterial cell?
1. snRNA
2. hn RNA
3. 23 S rRNA
4. 5 S rRNA
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & Biology