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 |
 86%
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:  Kingdom Monera: Blue Green Algae |
 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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Which one of the following is incorrect statement

(1) All organisms are composed of cells

(2) Cell is the basic unit of life

(3) All inanimate things are made up of cells

(4) Virus is acellular

Subtopic:  Cell Theory |
 86%
From NCERT
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