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The plasma membrane consists mainly of

1. phospholipids embedded in a protein bilayer
2. proteins embedded in a phospholipid bilayer
3. proteins embedded in a polymer of glucose molecules
4. proteins embedded in a carbohydrate bilayer

Subtopic:  Cell Membrane |
 83%
Level 1: 80%+
NEET - 2010
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Stroma in the chloroplasts of higher plants contains

1. light-independent reaction enzymes
2. light-dependent reaction enzymes
3. ribosomes
4. chlorophyll
Subtopic:  Plastids |
 56%
Level 3: 35%-60%
NEET - 2009
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Middle lamella is mainly composed of

1. hemicellulose

2. muramic acid

3. calcium pectate

4. phosphoglycerides

Subtopic:  Cell Wall |
 90%
Level 1: 80%+
NEET - 2009
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Plasmodesmata are

1. lignified cemented layers between cells
2. locomotory structures
3. membranes connecting the nucleus with plasmalemma
4. connections between adjacent cells
Subtopic:  Cell Wall |
 84%
Level 1: 80%+
NEET - 2009
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Polysome is formed by

1. several ribosomes attached to a single mRNA
2. many ribosomes attached to a strand of endoplasmic reticulum
3. a ribosome with several subunits 
4. ribosomes attached to each other in a linear arrangement
Subtopic:  Ribosome and Inclusion Bodies |
 90%
Level 1: 80%+
NEET - 2008
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The two subunits of ribosome remain united at a critical ion level of

1. copper

2. manganese

3. magnesium

4. calcium

Subtopic:  Ribosome and Inclusion Bodies |
 66%
Level 2: 60%+
NEET - 2008
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Vacuole in a plant cell:

1. is membrane-bound and contains storage proteins and lipids

2. is membrane-bound and contains water and excretory substances

3. lacks membrane and contains air

4. lacks membrane and contains water and excretory substances

Subtopic:  Vacuole |
 86%
Level 1: 80%+
NEET - 2008
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In germinating seeds fatty acids are degraded exclusively in the

1. proplastids

2. glyoxysomes

3. peroxisomes

4. mitochondria

Subtopic:  Microbodies |
 67%
Level 2: 60%+
NEET - 2008
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Which one of the following is not a constituent of cell membrane ?

1. Cholesterol

2. Glycolipids

3. Proline

4. Phospholipids

Subtopic:  Cell Membrane |
 88%
Level 1: 80%+
NEET - 2007
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Lysozyme that is present in perspiration, saliva and tears, destroys:

1. certain fungi

2. certain types of bacteria

3. all viruses

4. most virus-infected cells

Subtopic:  Endomembrane System (Lysosomes) |
 82%
Level 1: 80%+
NEET - 2007
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