- 1(current)
Q. No.Consider the given two statements:
| Statement I: | Prokaryotic cells lack a defined nucleus and instead have a nucleoid region where the DNA is concentrated. |
| Statement II: | Eukaryotic cells possess a true nucleus enclosed by a nuclear membrane, which houses the cell’s genetic material. |
| 1. | Both Statement I and Statement II are True. |
| 2. | Statement I is True but Statement II is False. |
| 3. | Statement I is False but Statement II is True. |
| 4. | Both Statement I and Statement II are False. |
Subtopic: Prokaryotic Cell Organisation | Details of Prokaryotic Cell Structure | Nucleus |
94%
From NCERT
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Match List - I with List - II
| List -I | List -II | ||
| (a) | Cristae | (i) | Primary constriction in chromosome |
| (b) | Thylakoids | (ii) | Disc-shaped sacs in Golgi apparatus |
| (c) | Centromere | (iii) | Infoldings in mitochondria |
| (d) | Cisternae | (iv) | Flattened membranous sacs in stroma of plastids |
Choose the correct answer from the options given below.
| (a) | (b) | (c) | (d) | |
| 1. | (iii) | (iv) | (i) | (ii) |
| 2. | (ii) | (iii) | (iv) | (i) |
| 3. | (iv) | (iii) | (ii) | (i) |
| 4. | (i) | (iv) | (iii) | (ii) |
Subtopic: Mitochondria | Golgi Apparatus | Nucleus | Vacuole |
94%
From NCERT
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Which of the following is an incorrect statement?
| 1. | The perinuclear space forms a barrier between the materials present inside the nucleus and that of the cytoplasm. |
| 2. | Nuclear pores act as passages for proteins and RNA molecules in both directions between nucleus and cytoplasm. |
| 3. | Mature sieve tube elements possess a conspicuous nucleus and usual cytoplasmic organelles. |
| 4. | Microbodies are present both in plant and animal cells. |
Subtopic: Nucleus |
85%
From NCERT
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Consider the given two statements:
1. Both Statement I and Statement II are true.
2. Statement I is true but Statement II is false.
3. Statement I is false but Statement II is true.
4. Both Statement I and Statement II are false.
| Statement I: | The nucleolus within the nucleus is primarily involved in the synthesis of rRNA and assembly of ribosomes. |
| Statement II: | Ribosomes are membrane-bound organelles that are only found within the nucleus of eukaryotic cells. |
2. Statement I is true but Statement II is false.
3. Statement I is false but Statement II is true.
4. Both Statement I and Statement II are false.
Subtopic: Nucleus |
89%
From NCERT
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How many of the given statements are correct?
1. 0
2. 1
3. 2
4. 3
| A: | The eukaryotes include only multicellular organims. |
| B: | Animal cells have centrioles which are absent in almost all plant cells; Spindle formation is seen in animal seen which is absent in all plant cells. |
| C: | The isolated lysosomal vesicles have been found to be very rich in almost all types of oxidative enzymes. |
| D: | Like chloroplasts, the mitochondria are also double membrane bound and easily observed under the microscope as they are large. |
| E: | In case of acrocentric chromosome the centromere is situated close to its end forming one extremely short and one very long arm, whereas the telocentric chromosome has a terminal centromere. |
2. 1
3. 2
4. 3
Subtopic: Introduction to Cell | Prokaryotic Cell Organisation | Plastids | Lysosomes | Nucleus | Nucleus: Chromosomes |
From NCERT
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Q. No.
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