Which one of the following is not a constituent of cell membrane ?
1. Cholesterol
2. Glycolipids
3. Proline
4. Phospholipids
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyLysozyme that is present in perspiration, saliva and tears, destroys:
1. certain fungi
2. certain types of bacteria
3. all viruses
4. most virus-infected cells
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologySelect the wrong statement from the following:
1. both chloroplasts and mitochondria contain an inner and an outer membrane
2. both chloroplasts and mitochondria have an internal compartment, the thylakoid
space bounded by the thylakoid membrane
3. both chloroplasts and mitochondria contain DNA
4. the chloroplasts are generally much larger than mitochondria
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyWhich of the following statements regarding mitochondrial membrane is not correct?
1. The outer membrane is permeable to all kinds of molecules
2. The enzymes of the electron transfer chain are embedded in the outer membrane
3. The inner membrane is highly convoluted forming a series of infoldings
4. The outer membrane resembles a sieve
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyWhich of the following statements regarding cilia is not correct ?
1. The organized beating of cilia is controlled by fluxes of Ca2+ across the membrane
2. Cilia are hair-like cellular appendages
3. Microtubules of cilia are composed of tubulin
4. Cilia contain an outer ring of nine doublet microtubules surrounding two single
microtubules
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyThe organelle common among prokaryotic and eukaryotic cell is
(1) centrosome
(2) ribosome
(3) peroxisome
(4) glyoxysome
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyWhich one of the following phenomena is commonly referred as 'cell drinking?
1. Endocytosis
2. Exocytosis
3. Phagocytosis
4. Pinocytosis
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyIf a chloroplast of plant is isolated and studied in a test tube the investigation is described
as
1. in vivo
2. in vitro
3. in situ
4. none of these.
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyAn organelle present in all plant cells but absent from those of animals is
1. Mitochondria
2. peroxisome
3. glyoxysomes
4. Centrioles
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyPrimary cell wall consists of a loose network of cellulose microfibrils impregnated with a
matrix of
1. glycoprotein and flavoprotein
2. hemicellulose and flavoprotein
3. hemicellulose and pectin
4. flavoprotein and pectin.
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & Biology