1. | Only I and II | 2. | Only I |
3. | Only II and III | 4. | Only III |
I: | bound by a single membrane only |
II: | found in all cells – both eukaryotic as well as prokaryotic |
III: | found in cytoplasm as well as chloroplasts, mitochondria and on RER |
1. | Only I and II | 2. | Only I and III |
3. | Only II and III | 4. | I, II and III |
1. | is a non- membrane bound organelle found in all cells which helps in cell division |
2. | is a non- membrane bound organelle found in plant cells which helps in cell division |
3. | is a non- membrane bound organelle found in animal cells which helps in DNA replication |
4. | is a non- membrane bound organelle found in animal cells which helps in cell division |
1. | Bacillus | Rod shaped |
2. | Coccus | Spherical |
3. | Vibrio | Icosahedral |
4. | Spirillum | Spiral |
I: | The outermost layer of the cell envelope is called as the glycocalyx which may be present as a loose sheath called the slime layer or a thick and tough capsule. |
II: | The cell wall determines the shape of the cell and provides a strong structural support to prevent the bacterium from bursting or collapsing. |
III: | Plasma membrane is selectively permeable in nature and interacts with the outside world. |
IV: | Bacterial cells can be classified as Gram positive and Gram negative based on the staining properties of their plasma membrane. |
1. | All except IV | 2. | Only I and II |
3. | I, II, III and IV | 4. | Only II, III and IV |
1. | several mRNA molecules attached to a ribosome |
2. | several ribosomes attached to a single mRNA |
3. | the three major types of cellular RNAs attached to an mRNA molecule |
4. | many ribosomes attached to the surface of endoplasmic reticulum |
I: | The lipid component mainly consists of phosphoglycerides. |
II: | Peripheral proteins are either lying on the surface of the membrane or partially buried in it. |
III: | Carbohydrates are not a component of cell membrane. |
IV: | Cholesterol is a lipid and is a part of the cell membranes of animal cells. |
1. | Only I | 2. | II and III only |
3. | I and IV only | 4. | II and IV only |
I: | mainly consists of calcium carbonate |
II: | holds or glues the different neighbouring cells together |
III: | is not traversed by plasmodesmata |
1. | Only II is correct |
2. | Only I is incorrect |
3. | I, II and III are incorrect |
4. | Only II and III are correct |
I: | divides the intracellular space into a luminal compartment and an extra-luminal [cytoplasm] compartment. |
II: | is called as rough ER if it shows ribosomes attached to its inner surface. |