Unless specifically stained by a vital stain like Janus Green, which of the following will not be visible under a microscope?
1. Rough endoplasmic reticulum
2. Smooth endoplasmic reticulum
3. Golgi apparatus
4. Mitochondria
The two types of cellular organelles that transform energy are:
| 1. | Chromoplasts and Leucoplasts |
| 2. | Mitochondria and Chloroplasts |
| 3. | Mitochondria and Endoplasmic reticulum |
| 4. | Chloroplasts and Golgi apparatus |
Which of the following cell organelles is responsible for extracting energy from carbohydrates to form ATP?
1. Lysosome
2. Ribosome
3. Chloroplast
4. Mitochondrion
Mitochondria and chloroplast are
| I: | semi-autonomous organelles. |
| II: | formed by division of pre-existing organelles and they contain DNA but lack protein synthesizing machinery. |
| 1. | Il is true but I is false |
| 2. | I is true but ll is false |
| 3. | Both I and I are false |
| 4. | Both I and II are correct |
Cellular organelles with membranes are
| 1. | nuclei, ribosomes and mitochondria |
| 2. | chromosomes, ribosomes and endoplasmic reticulum |
| 3. | endoplasmic reticulum, ribosomes and nuclie |
| 4. | lysosomes, Golgi apparatus and mitochondria. |
Cytochromes are found in
1. matrix of mitochondria
2. outer wall of mitochondria
3. cristae of mitochondria
4. lysosomes
Which structures perform the function of mitochondria in bacteria?
1. Nucleoid
2. Ribosomes
3. Cell wall
4. Mesosomes
Which one of the following has its own DNA?
1. Mitochondria
2. Dictyosome
3. Lysosome
4. Peroxisome
Select the wrong statement from the following:
| 1. | both chloroplasts and mitochondria contain an inner and an outer membrane |
| 2. | both chloroplasts and mitochondria have an internal compartment, the thylakoid space bounded by the thylakoid membrane |
| 3. | both chloroplasts and mitochondria contain DNA |
| 4. | the chloroplasts are generally much larger than mitochondria |
Which of the following statements regarding mitochondrial membrane is not correct?
| 1. | The outer membrane is permeable to all kinds of molecules |
| 2. | The enzymes of the electron transfer chain are embedded in the outer membrane |
| 3. | The inner membrane is highly convoluted forming a series of infoldings |
| 4. | The outer membrane resembles a sieve |
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