Identify the cell organelles labelled as A, B, C and D. Mark the correct option with respect to organelle and its function.

1.  A - Major site for synthesis of lipid.

2.  B - Performs the function of packaging materials, to be delivered to only intracellular targets.

3.  C - Sites of anaerobic respiration.

4.  D - Main arena of cellular activities 

Subtopic:  Introduction to Cell |
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The spherical structures present in the nucleoplasm

1.  Has contents continous with the rest of the nucleoplasm.

2.  Is a membrane bound structure

3.  Is a site of active messenger RNA synthesis

4.  Are smaller and more numerous in cells actively carrying out protein synthesis 

Subtopic:  Nucleus |
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Bacterial flagellum is composed of

1.  Basal body, axoneme and centrosome

2.  Basal body, hook and filament

3.  Axoneme, basal body and tubulin protein

4.  Centriole, hook and axoneme 

Subtopic:  Details of Prokaryotic Cell Structure |
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Mark the incorrect statement related to cell wall 

(a) Non-living rigid structure
(b) Present in fungi and plants
(c) Provides barriers to undesirable macromolecules
(d) Primary wall is capable of growth
(e) Primary wall gradually diminishes as the cells matures

1. a, b, d

2. d only

3. c, d

4. All statements are correct

Subtopic:  Cell Wall |
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ER, Golgi complex, lysosomes and vacuoles are included in endomembrane system because :-

1. Their function are similar 
2. Their structure are same
3. Their function are co-ordinated
4. Golgi complex, lysosomes and vacuoles are originated from the ER

Subtopic:  Endomembrane System |
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Which of the following cell organelle is absent in prokaryotic cell?

1. Ribosome

2. Lysosome

3. Mitochondria

4. 2 and 3 both 

Subtopic:  Details of Prokaryotic Cell Structure |
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Eukaryotic cells considered as more efficient than prokaryotic cells, due to -

1. compartmentalisation of cytoplasm

2. Infolding of membrane

3. Presence of cell wall

4. Aerobic respiration 

Subtopic:  Eukaryotic Cell Architecture: Types |
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The given diagram represents the four different structures which one of these is correct containing material and function:-

 

 

 

 

a.

Nucleolus

NOR

Synthesis of rRNA for formation of 80 S Ribosome

b.

Nuclear Pore

Chromatin

Exchange material between cytoplasm and nucleoplasm

c.

Nucleoplasm Protein

Nucleoplasmin

Formation of nuclear matrix

d.

Nuclear membrane

Ribosome

Cellulose synthesis

1. A

2. B

3. C

4. D

Subtopic:  Nucleus |
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Chromatin contains

1.  DNA, histone protein, basic non-histone protein, dsRNA

2.  DNA, basic histone protein, non-histone protein, RNA

3.  DNA, acidic histone protein, basic non-histone protein, RNA

4.  DNA, acidic histone protein, non-histone protein, dsRNA

Subtopic:  Nucleus: Chromosomes |
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Which of the following statements are correct?

a.  The rough endoplasmic reticulum is frequently observed in the cells actively involved in protein synthesis.

b.  Proteins that are to be used outside the cell are synthesized on free ribosomes.

c.  In the eukaryotic cell there is an extensive compartmentalization of cytoplasm through the presence of membrane-bound organelles

d.  ER is found prominently in human eggs and sperms.

1.  All are correct

2.  b & d

3.  a, b & d

4.  a & c 

Subtopic:  Eukaryotic Cell Orgenelle | Endomembrane System (Endoplasmic Reticulum) |
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