Lysosomes:
Statement I:
are membrane bound vesicular structures formed in the rough endoplasmic reticulum.
Statement II:
are very rich in almost all types of hydrolytic enzymes optimally active at the basic pH.
1.
Statement I is incorrect; Statement II is incorrect
2.
Statement I is incorrect; Statement II is correct
3.
Statement I is correct; Statement II is incorrect
4.
Statement I is correct; Statement II is correct
Subtopic: Endomembrane System (Lysosomes) |
65%
From NCERT
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How many of the given statements are correct?
1. 2
2. 3
3. 4
4. 5
| I: | The major lipids in cell membrane are phospholipids that are arranged in a bilayer. |
| II: | The ability of lipids and carbohydrates to move laterally within the membrane is measured by its fluidity. |
| III: | In addition to phospholipids, the animal cell membrane also contains cholesterol. |
| IV: | Algae have a cell wall, made of cellulose, galactans, mannans, and minerals like calcium carbonate. |
| V: | In plants other than algae, cell membrane consists of cellulose, hemicellulose, pectins and proteins |
1. 2
2. 3
3. 4
4. 5
Subtopic: Cell Wall | Cell Membrane |
54%
From NCERT
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The famous aphorism ‘omnis cellula-e-cellula’ was added to the cell theory by:
1. Theodore Schwann
2. Matthias Schleiden
3. Robert Hooke
4. Rudolf Virchow
Subtopic: Cell Theory |
94%
From NCERT
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All bacterial cells are:
| 1. | motile. |
| 2. | enclosed by peptidoglycan cell wall. |
| 3. | prokaryotic. |
| 4. | capable of fixing atmospheric nitrogen. |
Subtopic: Prokaryotic Cell Organisation | Details of Prokaryotic Cell Structure |
80%
From NCERT
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Consider the two statements:
| Statement I: | Plant cells possess cell walls, plastids and a large central vacuole which are absent in animal cells. |
| Statement II: | Animal cells have centrioles which are absent in almost all plant cells. |
| 1. | Statement I is correct; Statement II is incorrect |
| 2. | Statement I is correct; Statement II is correct |
| 3. | Statement II is incorrect; Statement I is correct |
| 4. | Statement I is incorrect; Statement II is incorrect |
Subtopic: Eukaryotic Cell Architecture: Types |
91%
From NCERT
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Identify the incorrect statement:
| 1. | Despite great morphological difference between eucaryotic cells and prokaryotes, they are remarkably similar metabolically. |
| 2. | The 80S ribosomes of eukaryotes are made up of 50S and 30S subunits. |
| 3. | The rough part of rough endoplasmic reticulum is caused by bound ribosomes in the process of synthesizing ER proteins. |
| 4. | The nucleolus is where the structural RNA for the cells ribosomes is transcribed from DNA. |
Subtopic: Ribosome and Inclusion Bodies |
86%
From NCERT
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When the centromere is located close to the end of a chromosome, the chromosome is known as:
1. Sub-metacentric
2. Acrocentric
3. Metacentric
4. Telocentric
1. Sub-metacentric
2. Acrocentric
3. Metacentric
4. Telocentric
Subtopic: Nucleus: Chromosomes |
72%
From NCERT
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Regarding Endoplasmic reticulum in a eukaryotic cell:
1. Only I and II are correct
2. Only I and III are correct
3. Only II and III are correct
4. I, II and III are correct
| I: | SER are the sites for lipid synthesis |
| II: | RER has ribosomes attached to ER |
| III: | In prokaryotes, only RER are present |
2. Only I and III are correct
3. Only II and III are correct
4. I, II and III are correct
Subtopic: Intro to Endomembrane System: Endoplasmic Reticulum |
84%
From NCERT
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Which of the following functions is carried out by the cytoskeleton in a cell?
| 1. | Transportation | 2. | Nuclear division |
| 3. | Protein synthesis | 4. | Motility |
Subtopic: Cytoskeleton |
75%
From NCERT
NEET - 2023
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Which of the following are NOT considered as the part of endomembrane system?
A. Mitochondria
B. Endoplasmic Reticulum
C. Chloroplasts
D. Golgi complex
E. Peroxisomes
Choose the most appropriate answer from the options given below:
A. Mitochondria
B. Endoplasmic Reticulum
C. Chloroplasts
D. Golgi complex
E. Peroxisomes
Choose the most appropriate answer from the options given below:
| 1. | A, D and E only | 2. | B and D only |
| 3. | A, C and E only | 4. | A and D only |
Subtopic: Endomembrane System |
85%
From NCERT
NEET - 2023
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