Q. No.Which one of the following is not a constituent of cell membrane ?
1. Cholesterol
2. Glycolipids
3. Proline
4. Phospholipids
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 |
The organelle common among prokaryotic and eukaryotic cell is
1. centrosome
2. ribosome
3. peroxisome
4. glyoxysome
A chromosome carrying the centromere at one of the ends is called
1. acentric
2. submetacentric
3. telocentric
4. metacentric.
Cell theory was proposed by
1. a botanist
2. a zoologist
3. a botanist and a zoologist
4. a psychologist.
Which of the following organelles contain DNA?
| (i) | Mitochondria |
| (ii) | Chloroplasts |
| (iii) | Golgi bodies |
| (iv) | Ribosomes |
1. (i) and (ii)
2. (ii) and (iii)
3. (i) only
4. (iv) only.
Identify the accurate explanation of mesosome.
It is :
| 1. | a specialised structure of prokaryotic cell formed by extension of plasma membrane into the cytoplasm |
| 2. | the middle layer of the prokaryotic cell wall |
| 3. | the organelle of eukaryotic cell which helps in lipid synthesis |
| 4. | the middle layer of eukaryotic cell wall. |
Which one of the following structure is an organelle within an organelle?
1. Ribosome
2. Peroxysome
3. ER
4. Mesosome
SER and RER can be distinguished with its presence in
| 1. | protein synthesising cells |
| 2. | protein and fat synthesising cells |
| 3. | carbohydrates and fat synthesising cells |
| 4. | lipid and protein synthesising cells |
Fluid mosaic model of plasma membrane was given by
1. Robertson
2. Robert Hooke
3. Singer and Nicholson
4. Gorter and Grendel
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