Which of the following statement about inclusion bodies incorrect ?

(1) These are involved in ingestion of food particles.

(2) They lie free in the cytoplasm.

(3) These represent reserve material in cytoplasm.

(4) They are not bound by any memberane.

Subtopic:  Ribosome and Inclusion Bodies |
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Which is the important site of formation of glycoproteins and glycolipids in eukaryotic cells?

(1) Peroxisomes

(2) Golgi bodies

(3) Polysomes

(4) Endoplasmic reticulum

Subtopic:  Golgi Apparatus |
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Inclusion bodies of blue-green, purple, and green photosynthetic bacteria are :

1. Contractile vacuoles

2. Gas vacuoles

3. Centrioles

4. Microtubules

Subtopic:  Ribosome and Inclusion Bodies |
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The biosynthesis of ribosomal RNA occurs in :

1. Ribosomes

2. Golgi apparatus

3. Microbodies

4. Nucleolus

Subtopic:  Nucleus |
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The size of Pleuropneumonia - like Organism (PPLO) is :

1. 0.02 μm

2. 1-2 μm

3. 10-20 μm

4. 0.1 μm

Subtopic:  Prokaryotic Cell Organisation |
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Match the following columns and select the correct option :

                Column - I                                          Column - II

(a) Smooth endoplasmic reticulum              (i) Protein synthesis

(b) Rough endoplasmic reticulum                (ii) Lipid synthesis

(c) Golgi complex                                         (iii) Glycosylation

(d) Centriole                                                  (iv) Spindle formation

1. (a)-(ii), (b)-(i), (c)-(iii). (d)-(iv)

2. (a)-(iii), (b)-(i), (c)-(ii), (d)-(iv)

3. (a)-(iv), (b)-(ii), (c)-(i), (d)-(iii)

4. (a)-(i), (b)-(ii), (c)-(iii), (d)-(iv)

Subtopic:  Golgi Apparatus | Centrosomes | Endomembrane System (Endoplasmic Reticulum) |
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Match the column I with column II.

        Column I                      Column II

(a) Golgi apparatus          (i) Synthesis of protein

(b) Lysosomes                 (ii) Trap waste and excretory products

(c) Vacuoles                    (iii) Formation of glycoproteins and glycolipids

(d) Ribosomes                 (iv) Digesting biomolecules

Choose the right match from options given below:

1. (a)-(iii), (b)-(iv), (c)-(ii), (d)-(i)

2. (a)-(iv), (b)-(iii), (c)-(i), (d)-(ii)

3. (a)-(iii), (b)-(ii), (c)-(iv), (d)-(i)

4. (a)-(i), (b)-(ii), (c)-(iv), (d)-(iii)

Subtopic:  Eukaryotic Cell Orgenelle |
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Which of the following nucleic acids is present in an organism having 70 S ribosomes only?

1. Single stranded DNA with protein coat

2. Double stranded circular naked DNA

3. Double stranded DNA enclosed in nuclear membrane

4. Double stranded circular DNA with histone proteins

Subtopic:  Details of Prokaryotic Cell Structure |
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Non-membranous nucleoplasmic structures in nucleus are the site for active synthesis of

1. protein synthesis

2. mRNA

3. rRNA

4. tRNA

 

Subtopic:  Nucleus |
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Which one of the following cellular parts is correctly described ?
1. Centrioles - sites for active RNA synthesis
2.  Ribosomes - those on chloroplasts are larger (80s) while those in the cytoplasm are smaller (70s)
3.   Lysosomes - optimally active at a pH of about 8.5
4.   Thylakoids - flattened membranous sacs forming the grana of chloroplasts

Subtopic:  Plastids |
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