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Ribosomal RNA is actively synthesized in:

1. Lysosomes

2. Nucleolus

3. Nucleoplasm

4. Ribosomes

Subtopic:  Nucleus |
 85%
Level 1: 80%+
AIPMT - 2012
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What is true about ribosomes?

1. The prokaryotic ribosomes are 80S, where S stands for sedimentation coefficient
2. These are composed of ribonucleic acid and proteins
3. These are found only in eukaryotic cells
4. These are self-splicing introns of some RNAs

Subtopic:  Ribosome and Inclusion Bodies |
 84%
Level 1: 80%+
AIPMT - 2012
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Select the correct statement from the following regarding cell membrane:

1. Na+ and K+ ions move across cell membranes by passive transport
2. Proteins make up 60% to 70% of the cell membrane
3. Lipids are arranged in a bilayer with polar heads towards the inner part
4. Fluid mosaic model of the cell membrane was proposed by Singer and Nicolson
Subtopic:  Cell Membrane |
 90%
Level 1: 80%+
AIPMT - 2012
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Which one of the following structures between two adjacent cells is an effective transport pathway?

1. Plasmodesmata

2. Plastoquinones

3. Endoplasmic reticulum

4. Plasmalemma

Subtopic:  Cell Wall |
 93%
Level 1: 80%+
AIPMT - 2010
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Important site for the formation of glycoproteins and glycolipids:

1.  Golgi apparatus

2.  plastid

3.  lysosome

4.  vacuole

Subtopic:  Golgi Apparatus |
 97%
Level 1: 80%+
AIPMT - 2011
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Peptide synthesis inside a cell takes place in:
1. mitochondria 2. chromoplast
3. ribosomes 4. chloroplast
Subtopic:  Ribosome and Inclusion Bodies |
 85%
Level 1: 80%+
AIPMT - 2011
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Which one of the following has its own DNA?
1. Mitochondria
2. Dictyosome
3. Lysosome
4. Peroxisome

Subtopic:  Mitochondria |
 96%
Level 1: 80%+
AIPMT - 2010
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The main arena of various types of activities of a cell is:

1. Plasma membrane 2. Mitochondria
3. Cytoplasm 4. Nucleus
Subtopic:  Cell Organisation |
 91%
Level 1: 80%+
AIPMT - 2010
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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 |
 84%
Level 1: 80%+
AIPMT - 2010
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Alage have cell wall made up of:

1. Cellulose, galactans and mannans
2. Hemicellulose, pectins and proteins
3. Pectins, cellulose and proteins
4. Cellulose, hemicellulose and pectins
Subtopic:  Cell Wall |
 84%
Level 1: 80%+
AIPMT - 2010
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