Who proposed the fluid mosaic model of plasma membrane?

1.  Camillo Golgi

2.  Schleiden and Schwann

3.  Singer and Nicolson

4.  Robert Brown

 

 

Subtopic:  Evidence for Fluidic Nature of Membrane |
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Which of the following statement is true for a secretory cell?

1.  Golgi apparatus is absent

2.  Rough Endoplasmic Reticulum (RER) is easily observed in the cell.

3.  Only Smooth Endoplasmic Reticulum (SER) is present.

4.  Secretory granules are formed in nucleus.

Subtopic:  Endomembrane System |
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What is a tonoplast?

1.  outer membrane of mitochondria 

2.  inner membrane of mitochondria

3.  membrane boundary of the vacuole of plant cell

4.  cell membrane of plant cell

Subtopic:  Vacuole |
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Which of the following is not true of a eukaryotic cell?

1.  Cell wall is made up of peptidoglycans

2.  It has 80S type of ribosome present in the cytoplasm

3.  Mitochondria contain circular DNA

4.  Membrane bound organelles are present

Subtopic:  Cell Wall |
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Which of the following statement is not true for plasma membrane?
1. It is present in both plant and animal cell.
2. Lipid is present as a bilayer in it.
3. Proteins are present, integrated as well as loosely associated, with the lipid bilayer
4. Carbohydrate is never found in it

Subtopic:  Cell Membrane |
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Plastid differs from mitochondria on the basis of one of the following features. Mark the right answer.

1.  Presence of two layers of membrane

2.  Presence of ribosome

3.  Presence of thylakoids
 
4.  Presence of DNA

 

 

Subtopic:  Plastids | Mitochondria |
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Which of the following is not a function of cytoskeleton in a cell?
1.  Intracellular transport

2.  Maintenance of cell shape and structure

3.  Support of the organelle

4.  Cell motility

Subtopic:  Cytoskeleton |
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The stain used to visualise mitochondria is
1. fast green
2. safranin
3. acetocarmine
4. janus green

 

 

 

Subtopic:  Mitochondria |
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Mark the mismatched pair.

A. Amyloplast

(i) Store protein granule

B. Elaioplast

(ii) Store oils or fats

C. Chloroplasts

(iii) Contain chlorophyll pigments

D. Chromoplasts

(iv) Contain colored pigments other than chlorophyll

Subtopic:  Plastids |
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Which of the following features is common to prokaryotes and many eukaryotes?

1.  Chromatin material present

2.  Cell wall present

3.  Nuclear membrane present

4.  Membrane bound sub-cellular organelles present

Subtopic:  Details of Prokaryotic Cell Structure | Eukaryotic Cell Orgenelle |
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