How many microtubules are associated with the structure of centriole?
1. 11
2. 18
3. 20
4. 27
The endomembrane system of the cell includes
1. ER + Golgi body + Mitochondria
2. ER + Golgi body + Vacuole + Microtubules
3. ER + Golgi body + Lysosome + Vacuole
4. ER + Golgi body + Chloroplast + Lysosome
Kinetochores are associated with
1. Outer part of primary constriction
2. Centromere in its inner central part
3. Secondary construction
4. Satellite
Cilia and flagella in a eukaryotic cell
1. Are motile at base
2. Are made of 20 microtubules
3. Are devoid of matrix and flagellar sheath
4. Shows rotatory movement
Eukaryotic cells contain
1. 70 'S' ribosomes
2. 70 'S' and 80 'S' ribosome
3. 80 'S' ribosomes
4. 70 'S' and 60 'S' ribosomes
Choose incorrect statement regarding cells
1. | Mycoplasma, the smallest cell, is only 0.3 μm in length while bacteria could be 3 to 5 μm |
2. | Hemoglobin associated human cells are about 7μm in diameter |
3. | The shape of the cell may not vary with the function they perform |
4. | Nerve cells are longest cells |
Which of the following cell organelle is closely associated with ER & helps in formation of plasma membrane during cytokinesis?
1. Centrosome
2. Sphaerosomes
3. Golgi bodies
4. Ribosomes
The ability of proteins to move laterally within the overall bilayer lipid molecules of plasma membrane is measured as its
1. Stability
2. Thickness
3. Degree of permeability
4. Fluidity
Neutral solutes directly pass through the lipid bilayer of plasma membrane because
1. Plasma membrane has special carrier for them
2. They are lipid soluble
3. They have specific hydrophilic areas for their passage
4. They consume ATP
Find the incorrect statement
1. Middle lamella is mainly made up of calcium and magnesium pectate
2. Cell wall is formed on the inner side of the cell therefore secondary wall formed first
3. Middle lamella glues the neighbouring cells together
4. Cell wall helps in cell to cell interaction and provides barrier to undesirable macromolecules