Q. No.
Who first explained that new cells are formed from pre-existing cells
1. Theodor Schwann
2. Rudolf Virchow
3. Matthias Schleiden
4. Robert Hooke
The plastid which stores protein is known as
1. Amyloplast
2. Chloroplast
3. Elaioplast
4. Aleuroplast
Which of the following statements about inclusion bodies is incorrect?
| 1. | These are involved in the ingestion of food particles. |
| 2. | They lie freely in the cytoplasm. |
| 3. | These represent reserve material in cytoplasm. |
| 4. | They are not bound by any membrane. |
Which is the important site of formation of glycoproteins and glycolipids in eukaryotic cells?
| 1. | Peroxisomes | 2. | Golgi bodies |
| 3. | Polysomes | 4. | Endoplasmic reticulum |
The given diagram represents the four different structures which one of these is correct containing material and function:-
|
|
|
|
|
|
a. |
Nucleolus |
NOR |
Synthesis of rRNA for formation of 80 S Ribosome |
|
b. |
Nuclear Pore |
Chromatin |
Exchange material between cytoplasm and nucleoplasm |
|
c. |
Nucleoplasm Protein |
Nucleoplasmin |
Formation of nuclear matrix |
|
d. |
Nuclear membrane |
Ribosome |
Cellulose synthesis |
1. A
2. B
3. C
4. D
Eukaryotic cells considered as more efficient than prokaryotic cells, due to -
| 1. | compartmentalisation of cytoplasm |
| 2. | Infolding of membrane |
| 3. | Presence of cell wall |
| 4. | Aerobic respiration |
Packing of substance for export from the cell occurs by the :
1. RER
2. Lysosome
3. Nucleus
4. Golgi body
Membrane-bound space present in plant cell and filled with water, sap and excretory substance is known as
1. Lysosome
2. Endoplasmic reticulum
3. Vacuole
4. Cytoplasm
Inclusion bodies of blue-green, purple, and green photosynthetic bacteria are:
1. Contractile vacuoles
2. Gas vacuoles
3. Centrioles
4. Microtubules
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