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Q. No.Karyotheca or nuclear membrane is absent in
1. Nostoc
2. Rhizobium
3. Drosophila
4. Both (1) & (2)
Subtopic: Prokaryotic Cell Organisation | Details of Prokaryotic Cell Structure |
79%
Level 2: 60%+
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Choose odd one out w.r.t. nuclear membrane.
| 1. | Inner membrane is smooth |
| 2. | Cytoplasmic surface of nuclear envelope may bear ribosomes |
| 3. | Outer membrane bears 70S ribosomes |
| 4. | Perinuclear space is 10 to 50 nm |
Subtopic: Nucleus |
59%
Level 3: 35%-60%
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Kinetochore is associated with
| 1. | Primary constriction |
| 2. | Secondary constriction |
| 3. | Satellite |
| 4. | More than one option is correct |
Subtopic: Nucleus: Chromosomes |
71%
Level 2: 60%+
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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: Cell Membrane |
69%
Level 2: 60%+
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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: Prokaryotic Cell Organisation | Nucleus | Ribosome and Inclusion Bodies |
86%
Level 1: 80%+
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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: Prokaryotic Cell Organisation | Details of Prokaryotic Cell Structure |
83%
Level 1: 80%+
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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 |
Subtopic: Endomembrane System |
65%
Level 2: 60%+
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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 |
Subtopic: Golgi Apparatus |
72%
Level 2: 60%+
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The correct feature regarding nucleolus is
| 1. | Site for ribosomal RNA synthesis |
| 2. | Surrounded by nucleolar membrane |
| 3. | Larger in cell which is inactive for protein synthesis |
| 4. | Separated from nucleoplasm |
Subtopic: Nucleus |
85%
Level 1: 80%+
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All the given cell organelles are included in endomembrane system, except
| 1. | Endoplasmic reticulum | 2. | Lysosome |
| 3. | vacuole | 4. | Mitochondrion |
Subtopic: Endomembrane System |
Level 4: Below 35%
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