The outer membrane of the nucleus:

I: is continuous with the Endoplasmic reticulum
II: does not bear ribosomes.
1. Only I is correct
2. Only II is correct
3. Both I and II are correct
4. Both I and II are incorrect

Subtopic:  Nucleus |
 77%
From NCERT
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If the centromere is situated close to the end of a chromosome, it is called as:

1. Metacentric

2. Submetacentric

3. Acrocentric

4. Telocentric

Subtopic:  Nucleus: Chromosomes |
 74%
From NCERT
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The lipid component of the plasma membrane mainly consists of:
1. Triglycerides
2. Cholesterol
3. Phosphoglycerides
4. Proteins

Subtopic:  Cell Membrane |
 85%
From NCERT
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All the following are the part of a eukaryotic cell endomembranous system except:

1. Vacuole

2. Lysosome

3. Golgi complex

4. Mitochondria

Subtopic:  Endomembrane System (Endoplasmic Reticulum) |
 91%
From NCERT
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A feature unique to prokaryotes would be:

1. A cell wall not made up of cellulose
2. An extrachromosomal plasmid DNA
3. A cell membrane of peptidoglycan
4. Presence of inclusions
Subtopic:  Prokaryotic Cell Organisation |
From NCERT
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Chromatophores are:

1. present in liopolysaccharide layer of gram negative bacteria
2. colored pigments present in fluorescent bacteria
3. vesicles that store pigments in prokaryotic cells
4. extensions on membrane in cynobacteria 
Subtopic:  Prokaryotic Cell Organisation |
 60%
From NCERT
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The tail of the phospholipid molecule:

1. is hydrophilic and composed of phosphate

2. is hydrophilic and composed of saturated hydrocarbons

3. is hydrophobic and composed of saturated hydrocarbons

4. is hydrophobic and composed of unsaturated hydrocarbons

Subtopic:  Cell Membrane |
 67%
From NCERT
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In animal cells, lipid-like steroidal hormones are synthesized in the:

1. Nucleus

2. Rough endoplasmic reticulum

3. Smooth endoplasmic reticulum

4. Golgi apparatus

Subtopic:  Endomembrane System (Endoplasmic Reticulum) |
 93%
From NCERT
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Unless specifically stained by a vital stain like Janus Green, which of the following will not be visible under a microscope?

1. Rough endoplasmic reticulum
2. Smooth endoplasmic reticulum
3. Golgi apparatus
4. Mitochondria
Subtopic:  Mitochondria |
 83%
From NCERT
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Fat soluble pigments like xanthophylls are present in:

1. Chromoplasts

2. Aleuroplasts

3. Elaioplasts

4. Amyloplasts

Subtopic:  Plastids |
 71%
From NCERT
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