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Q. No.Centrioles have
1.
9 + 2 arrangement of microtubules
2.
9 peripheral doublet microtubules
3.
2 centrally located microtubules
4.
An organisation like the cartwheel
Subtopic: Centrosomes |
68%
From NCERT
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In flagella and cilia, the number of doublets present in the peripheral region of axoneme are
1. 18
2. 20
3. 9
4. 2
1. 18
2. 20
3. 9
4. 2
Subtopic: Cytoskeleton |
73%
From NCERT
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Match the column I with column II
1. a(ii), b(i), c(iv), d(iii)
2. a(ii), b(i), c(iii), d(iv)
3. a(iii), b(i), c(iv), d(ii)
4. a(i), b(ii), c(iv), d(iii)
| Column I | Column II | ||
| a | Fat storage | (i) | Tubulin |
| b | Cilia | (ii) | Elaioplast |
| c | Mitochondria | (iii) | Contractile |
| d | Microfilaments | (iv) | Oxysomes |
2. a(ii), b(i), c(iii), d(iv)
3. a(iii), b(i), c(iv), d(ii)
4. a(i), b(ii), c(iv), d(iii)
Subtopic: Plastids | Mitochondria |
79%
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Karyotheca or nuclear membrane is absent in
1. Nostoc
2. Rhizobium
3. Drosophila
4. Both (1) & (2)
1. Nostoc
2. Rhizobium
3. Drosophila
4. Both (1) & (2)
Subtopic: Prokaryotic Cell Organisation | Details of Prokaryotic Cell Structure |
79%
From NCERT
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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%
From NCERT
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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%
From NCERT
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Subtopic: Nucleus: Chromosomes |
57%
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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 |
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: 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: Prokaryotic Cell Organisation | Nucleus | Ribosome and Inclusion Bodies |
86%
From NCERT
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