In 'fluid mosaic model', the term fluid and mosaic signify, respectively:
1. Proteins and lipids
2. Lipids and carbohydrates
3. Lipids and proteins
4. Proteins and carbohydrates
Subtopic: Â Cell Membrane |
 68%
From NCERT
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"Palade particles" can be found in/on how many of the following structures?
1. 7
2. 5
3. 4
4. 6
|
Mitochondria, chloroplast, cytoplasm, plasma membrane, vacuole, lysosomes, ER, outer nuclear membrane, Golgi bodies |
2. 5
3. 4
4. 6
Subtopic: Â Ribosome and Inclusion Bodies |
From NCERT
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Which of the following features/structures given below are exhibited by prokaryotic (P) and eukaryotic (E) cells?
(i) Absence of nucleolus
(ii )Presence of centrioles
(iii) Single envelope system
(iv) Mesosomes
(v) 80 S ribosomes
(i) Absence of nucleolus
(ii )Presence of centrioles
(iii) Single envelope system
(iv) Mesosomes
(v) 80 S ribosomes
| (P) | (E) | |
| 1. | (i), (iii), (v) | (ii), (iv) |
| 2. | (i), (iii), (iv) | (ii), (v) |
| 3. | (ii), (v) | (i), (iii), (iv) |
| 4 | (ii), (iii) | (i), (iv), (v) |
Subtopic: Â Prokaryotic Cell Organisation |Â Nucleus |Â Ribosome and Inclusion Bodies |
 86%
From NCERT
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The membranous extensions found in cytoplasm of cyanobacteria and purple bacteria that contain pigments are
1. Mesosomes
2. Sphaerosome
3. Polysomes
4. Chromatophores
1. Mesosomes
2. Sphaerosome
3. Polysomes
4. Chromatophores
Subtopic: Â Prokaryotic Cell Organisation |Â Details of Prokaryotic Cell Structure |
 81%
From NCERT
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Select the correct statement w.r.t. endomembrane system.
1. It is composed of ER, Golgi body, peroxisome and lysosome
2. It includes the organelles that have distinct structure and function
3. It is found in prokaryotic as well as eukaryotic cells
4. It includes both membranous and non-membranous organelles
1. It is composed of ER, Golgi body, peroxisome and lysosome
2. It includes the organelles that have distinct structure and function
3. It is found in prokaryotic as well as eukaryotic cells
4. It includes both membranous and non-membranous organelles
Subtopic: Â Endomembrane System |
 63%
From NCERT
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Golgi apparatus is closely associated with ER in:
1. Structural as well as functional aspects
2. Structural aspects only
3. Functional aspects only
4. Metabolism and biochemistry
1. Structural as well as functional aspects
2. Structural aspects only
3. Functional aspects only
4. Metabolism and biochemistry
Subtopic: Â Golgi Apparatus |
 74%
From NCERT
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Which of the given features is not similar in mitochondria and chloroplast?
1 Synthesis of ATP
2. Circular dsDNA
3. 70S ribosomes
4. Elementary particles on cristae
1 Synthesis of ATP
2. Circular dsDNA
3. 70S ribosomes
4. Elementary particles on cristae
Subtopic: Â Plastids |Â Mitochondria |
 72%
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The correct feature regarding nucleolus is
1. Site for ribosomal RNA synthesis2. Surrounded by nucleolar membrane
3. Larger in cell which is inactive for protein synthesis
4. Separated from nucleoplasm
Subtopic: Â Nucleus |
 85%
From NCERT
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All the given cell organelles are included in endomembrane system, except
1. Endoplasmic reticulum
2. Lysosome
3. Mitochondrion
4. Vacuole
2. Lysosome
3. Mitochondrion
4. Vacuole
Subtopic: Â Endomembrane System |
 90%
From NCERT
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Select the correct statement from the following with respect to cell membrane:
1. The polar heads cannot interact with water
2. Membrane of RBC has about 52 percent proteins and 40 percent lipids
3. Lipids are either integral or peripheral
4. The detailed structure of membrane was studied after the invention of light microscope
1. The polar heads cannot interact with water
2. Membrane of RBC has about 52 percent proteins and 40 percent lipids
3. Lipids are either integral or peripheral
4. The detailed structure of membrane was studied after the invention of light microscope
Subtopic: Â Cell Membrane |
 83%
From NCERT
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