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Q. No.Tay-Sachs disease is a human genetic abnormality that results in cells accumulating and becoming clogged with very large and complex lipids. Which cellular organelle must be involved in this condition?
1. the endoplasmic reticulum
2. the Golgi apparatus
3. the lysosome
4. mitochondria
Subtopic: Endomembrane System (Endoplasmic Reticulum) |
63%
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The chemical reactions involved in respiration are virtually identical between prokaryotic and eukaryotic cells. In eukaryotic cells, ATP is synthesized primarily on the inner membrane of the mitochondria. In light of the endosymbiont theory for the evolutionary origin of mitochondria, where is most ATP synthesis likely to occur in prokaryotic cells?
1. in the cytoplasm
2. on the inner mitochondrial membrane
3. on the endoplasmic reticulum
4. on the plasma membrane
1. in the cytoplasm
2. on the inner mitochondrial membrane
3. on the endoplasmic reticulum
4. on the plasma membrane
Subtopic: Mitochondria |
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When a potassium ion (K+) moves from the soil into the vacuole of a cell on the surface of a root, it must pass through several cellular structures. Which of the following correctly describes the order in which these structures will be encountered by the ion?
1. plasma membrane → primary cell wall → cytoplasm → vacuole
2. secondary cell wall → plasma membrane → primary cell wall → cytoplasm → vacuole
3. primary cell wall → plasma membrane → cytoplasm → vacuole
4. primary cell wall → plasma membrane → lysosome → cytoplasm → vacuole
1. plasma membrane → primary cell wall → cytoplasm → vacuole
2. secondary cell wall → plasma membrane → primary cell wall → cytoplasm → vacuole
3. primary cell wall → plasma membrane → cytoplasm → vacuole
4. primary cell wall → plasma membrane → lysosome → cytoplasm → vacuole
Subtopic: Vacuole |
66%
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Which of the following is a characteristic feature of a carrier protein in a plasma membrane?
1. It is a peripheral membrane protein.
2. It exhibits a specificity for a particular type of molecule.
3. It requires the expenditure of cellular energy to function.
4. It works against diffusion
1. It is a peripheral membrane protein.
2. It exhibits a specificity for a particular type of molecule.
3. It requires the expenditure of cellular energy to function.
4. It works against diffusion
Subtopic: Cell Membrane |
53%
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In the following question, a statement of assertion (A) is followed by a statement of reason (R).
| A: | Both the solute and solvent can pass through a semipermeable membrane. |
| R: | A semipermeable membrane is always living |
| 1. | If both Assertion & Reason are true and the reason is the correct explanation of the assertion. |
| 2. | If both Assertion & Reason are true but the reason is not the correct explanation of the assertion. |
| 3. | If Assertion is true statement but Reason is false. |
| 4. | If both Assertion and Reason are false statements. |
Subtopic: Cell Membrane |
From NCERT
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Which organelle often takes up much of the volume of a plant cell?
1. lysosome
2. vacuole
3. mitochondrion
4. Golgi apparatus
1. lysosome
2. vacuole
3. mitochondrion
4. Golgi apparatus
Subtopic: Vacuole |
96%
From NCERT
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Subtopic: Cytoskeleton | Cilia & Flagella |
80%
From NCERT
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Which of the following combinations are correct in response to plastids?
A. Amyloplasts store carbohydrates
B. Leucoplasts gives a red colour to the plant
C. Xanthophyll gives yellow and orange colours to parts of the plant
D. Carotenoid pigments are responsible for tapping light energy
E. Chlorophyll gives a red color
Choose the correct answer from the options given below:
A. Amyloplasts store carbohydrates
B. Leucoplasts gives a red colour to the plant
C. Xanthophyll gives yellow and orange colours to parts of the plant
D. Carotenoid pigments are responsible for tapping light energy
E. Chlorophyll gives a red color
Choose the correct answer from the options given below:
| 1. | A & B only | 2. | A, C, D only |
| 3. | A, B, C, D only | 4. | A & D only |
Subtopic: Plastids |
73%
From NCERT
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In bacterial flagellum, the longest portion that extends from the cell surface to the outside in order to help motility is
1. Basal body
2. Hook
3. Filament
4. Pili
1. Basal body
2. Hook
3. Filament
4. Pili
Subtopic: Cilia & Flagella |
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The Bacteria and Eukarya domains are distinguished by:
1. All members of Bacteria are single-celled and all members of Eukarya are multicellular
2. Only Eukaryotes have DNA
3. Only Eukaryotes have the ability to grow and reproduce
4. In Bacteria, there is an absence of membranous organelles, such as a nucleus
1. All members of Bacteria are single-celled and all members of Eukarya are multicellular
2. Only Eukaryotes have DNA
3. Only Eukaryotes have the ability to grow and reproduce
4. In Bacteria, there is an absence of membranous organelles, such as a nucleus
Subtopic: Prokaryotic Cell Organisation | Details of Prokaryotic Cell Structure |
76%
From NCERT
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