Q. No.The endomembrane system of a eukaryotic cell does not include:
1. Endoplasmic reticulum
2. Lysosome
3. Vacuole
4. Peroxisome
Prokaryotic mesosomes do not help in:
1. Cell wall formation
2. DNA replication
3. Respiration
4. Photosynthesis
Plastids used in storing proteins are called as:
1. Amyloplasts
2. Aleuroplasts
3. Elaioplasts
4. Chromoplasts
The cis and trans faces of the Golgi Apparatus are:
| 1. | Similar but not interconnected |
| 2. | Similar and interconnected |
| 3. | Entirely different but interconnected |
| 4. | Entirely different and not interconnected |
A centriole-like structure, from which the cilium and the flagellum emerge, is the:
1. Centrosome
2. Basal body
3. Axoneme
4. Vimentin
The outer membrane of the nucleus:
I. is continuous with the Endoplasmic reticulum
II. does not bear ribosomes.
1. Only I is correct
2. Only II is correct
3. Both I and II are correct
4. Both I and II are incorrect
Who concluded, based on his studies on plant tissues, that the presence of cell wall is a unique character of plant cells ?
1.
Mathias Schleiden
2.
Theodor Schwann
3.
Rudolph Virchow
4.
Robert Hooke
If the centromere is situated close to the end of a chromosome, it is called as:
1. Metacentric
2. Submetacentric
3. Acrocentric
4. Telocentric
The presence of cholesterol in the plasma membranes of some animals.
| 1. | enables the membrane to stay fluid more easily when cell temperature drops. |
| 2. | enables the animal to remove hydrogen atoms from saturated phospholipids. |
| 3. | enables the animal to add hydrogen atoms to unsaturated phospholipids. |
| 4. | makes the membrane less flexible, allowing it to sustain greater pressure from within the cell. |
Centrioles, cilia, flagella, and basal bodies have remarkably similar structural elements and arrangements. This leads us to which of the following as a probable hypothesis?
| 1. | Disruption of one of these types of structure should necessarily disrupt each of the others as well. |
| 2. | Loss of basal bodies should lead to loss of all cilia, flagella, and centrioles. |
| 3. | Motor proteins such as dynein must have evolved before any of these four kinds of structure. |
| 4. | Natural selection for motility must select for microtubular arrays in circular patterns. |
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