Match the following and select the correct answer :
| (a) | Centriole | (i) | Infoldings in mitochondria |
| (b) | Chlorophyll | (ii) | Thylakoids |
| (c) | Cristae | (iii) | Nucleic acids |
| (d) | Ribozymes | (iv) | Basal body cilia or flagella |
| A | B | C | D | |
| 1. | (iv) | (ii) | (i) | (iii) |
| 2. | (i) | (ii) | (iv) | (iii) |
| 3. | (i) | (iii) | (ii) | (iv) |
| 4. | (iv) | (iii) | (i) | (ii) |
Extranuclear chromosomes occur in:
| 1. | Peroxisome and ribosome | 2. | Chloroplast and mitochondria |
| 3. | Mitochondria and ribosome | 4. | Chloroplast and lysosome |
Match the columns and identify the correct option.
| Column I | Column II | ||
| A. | Thylakoids | 1. |
Disc-shaped sacs in Golgi apparatus |
| B. | Cristae | 2. |
Condensed structure of DNA |
| C. | Cisternae | 3. |
Flat membranous sacs in stroma |
| D. | Chromatin | 4. |
Infolding in mitochondria |
| A | B | C | D | |
| 1. | 4 | 3 | 1 | 2 |
| 2. | 3 | 4 | 1 | 2 |
| 3. | 3 | 1 | 4 | 2 |
| 4. | 3 | 4 | 2 | 1 |
The figure below shows the structure of a mitochondrion with its four parts labelled (A), (B), (C) and (D). Select the part correctly matched with its function.
| 1. | Part (A) : Matrix – major site for respiratory chain enzymes |
| 2. | Part (D) : Outer membrane – gives rise to inner membrane by splitting |
| 3. | Part (B) : Inner membrane – forms infoldings called cristae |
| 4. | Part (C) : Cristae – possess single circular DNA molecule and ribosome |
Which of the following statements is wrong?
| 1. | Both chloroplasts and mitochondria have an internal compartment or the thylakoid space bounded by the thylakoid membrane. |
| 2. | Both chloroplasts and mitochondria contain DNA. |
| 3. | The chloroplasts are generally much larger than mitochondria. |
| 4. | Both chloroplasts and mitochondria are covered by double membrane. |
Cellular organelles with membranes are
1. Nucleus, ribosome and mitochondria
2. Chromosomes, ribosome and endoplasmic reticulum
3. Endoplasmic reticulum, ribosome and nuclei
4. Lysosomes, Golgi apparatus and mitochondria
Extranuclear DNA is found in:
| 1. | Lysosome and chloroplast |
| 2. | Chloroplast and mitochondria |
| 3. | Mitochondria and lysosome |
| 4. | Golgi and E.R. |