Cell theory formulated by Schleiden and Schwann does not explain which one of the following features?

1.  Organisms are composed of cells and their products

2.  All cells are basically alike in their structure and metabolism

3.  New cells originate from pre-existing cells 

4.  The function of an organism is an outcome of activities and interactions of its constituent cells

 

Subtopic:  Cell Theory |
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Cilia and flagella resemble in the 

1.  Microtubular structure

2.  Presence of basal granules

3.  Mode of action

4.  More than one option is correct 

Subtopic:  Cilia & Flagella |
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The outer as well as inner membrane of mitochondria 

1.  Form a number of infoldings towards the matrix

2.  Both have a similar amount of  cardiolipin

3.  Have more lipids than proteins 

4.  Have their own specific enzymes 

Subtopic:  Mitochondria |
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Select the incorrect statement with respect to Golgi apparatus 

1.  The cis and trans faces of the organelle are similar but interconnected

2.  The Golgi cisternae are concentrically arranged near the nucleus

3.  It remains in close association with the endoplasmic reticulum

4.  The ER vesicles fuse with the cis face 

Subtopic:  Golgi Apparatus |
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Which of the following sequence is correct with respect to size?

1.  Eukaryotic cell > PPLO > Viruses > Bacteria

2.  Eukaryotic cell > Bacteria > PPLO > Viruses

3.  Eukaryotic cell > PPLO > Bacteria > Viruses

4.  Eukaryotic cell > Viruses > PPLO > Bacteria 

Subtopic:  Cell Organisation |
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Both cilium and flagellum arise from the part which is structurally similar to

1.  Centriole

2.  Kinetochore

3.  Kinetosome

4.  Centrosphere 

Subtopic:  Cilia & Flagella |
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Read the statements carefully and select the set of correct statements

a.  Palade particles are found in all cellular organisms

b.  A membrane bound structure in nucleus is the site of ribosomal RNA synthesis

c.  The mitochondria can be divide meiotically to produce daughter mitochondria

d.  Vacuoles can occupy about 90% of the volume of a plant cell

1.  All except b

2.  a & c

3,  b & d

4.  a & d 

Subtopic:  Mitochondria | Nucleus | Vacuole |
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For the sectional view of chloroplast which is given below. Choose the correct statement

1.  Envelope possess fully permeable membranes

2.  'B' possess the enzymes required for protein and carbohydrates synthesis

3.  'A' structure giving piles of coins like appearance is the site of C3 cycle

4.  'A' Possess ribosomes, large ss circular DNA 

Subtopic:  Plastids |
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Lysosomal enzymes act at

1.  Basic pH

2.  Acidic pH

3.  Neutral pH

4.  Acidic pH inside lysosome and basic pH in cytosol 

Subtopic:  Lysosomes |
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A nuclear pore allows

1.  Unidirectional movement of DNA

2.  RNA movement only

3.  RNA and protein movement

4.  Protein movement only 

Subtopic:  Nucleus |
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