The common organelle present in both eukaryotes and prokaryotes is

1. Vacuole

2. cell membrane

3. ribosome

4. centrosome

Subtopic:  Prokaryotic Cell Organisation |
 90%
From NCERT
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Which of the following is the characteristic of  prokaryotes

(1)mesosome

(2)naked DNA

(3)plasmid

(4)All of the above

Subtopic:  Prokaryotic Cell Organisation |
 93%
From NCERT
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Arrange the following in the increasing of their size

(1)virus< PPLO< typical bacteria< typical eukaryotic cell

(2) PPLO< virus< typical bacteria< typical eukaryotic cell

(3) virus< PPLO< typical eukaryotic cell< typical bacteria

(4) virus> PPLO> typical bacteria> typical eukaryotic cell

Subtopic:  Cell Organisation |
 59%
From NCERT
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The detailed structure of the cell membrane was studied only after the advent of the

(1)compound microscope

(2)cryo-electron microscopy

(3)X-ray crystallography

(4)electron microscope

Subtopic:  Evidence for Fluidic Nature of Membrane |
 93%
From NCERT
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The lipid component of the membrane mainly consists of

(1)phosphoglycerides

(2)triglycerides

(3)monoglycerides

(4)Both B and C

Subtopic:  Evidence for Fluidic Nature of Membrane |
 86%
From NCERT
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In membranes, the lipids are arranged within the membrane with the ______heads towards the outer sides and the _________ tails towards the inner part.

(1)polar, charged

(2)polar, hydrophobic

(3)polar, nonpolar

(4)Both B and C

Subtopic:  Cell Membrane |
 62%
From NCERT
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Which of the following biomolecules is not the part of membrane?

(1)Nucleic Acid

(2)Proteins

(3)Lipids

(4)Carbohydrates

Subtopic:  Cell Membrane |
 86%
From NCERT
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Which one is true for the cell membrane

(1)The ratio of lipids and proteins is fixed in membranes

(2)The amount of carbohydrates is greater than other biomolecules

(3)In human erythrocytes amount of protein is more than that of lipids

(4)All of the above

Subtopic:  Cell Membrane |
 54%
From NCERT
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Integral or Peripheral proteins classification is based on

1. protein size 2. ease of extraction
3. ease of function 4. ease of study
Subtopic:  Evidence for Fluidic Nature of Membrane |
 83%
From NCERT
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The most improved model of the structure of the cell membrane is

(1)Fluid membrane model

(2)Fluid mosaic model

(3)Sandwich model

(4)unit membrane model

Subtopic:  Evidence for Fluidic Nature of Membrane |
 94%
From NCERT
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