Prokaryotic Cell

Q. Which of the following are present in a prokaryotic cell?

1. Nucleus
2. Ribosome
3. Lysosome
4. Golgi complex

Q. Prokaryotic cells are primitive cells which lack a well defined _____ .

1. Lysosome
2. Nucleus
3. Vacuole
4. Ribosomes

Q. Which of the following statements are true regarding mycoplasma?

1. The nucleus is not surrounded by a nuclear membrane.
2. Its genetic material is represented as naked Deoxyribonucleic Acid
3. The cell is surrounded only by a cell wall and cell membrane is absent.
4. It is the smallest bacterial cell.

Q.

Cells with a well defined nucleus are called _____A____ and without well-defined nucleus are called ____B____ .

1. A: unicellular B: multicellular
2. A: prokaryotic B: eukaryotic
3. A: multicellular B: unicellular
4. A: eukaryotic B: prokaryotic

Q. Prokaryotic ribosomes have larger subunit and smaller subunit.

1. 30S
2. 60S
3. 50S
4. 40S

Q. In prokaryotes, chromatophores are

1. Specialised granules responsible for colouration of cells
2. Structures responsible for organizing the shape of the cell
3. Internal membrane system that may become extensive and complex in photosynthetic bacteria
4. Inclusion bodies lying free inside the cells for carrying out various metabolic activities

Q. Pilus is the appendage required for bacterial .

1. motility
2. reproduction
3. cell division
4. infection

Q.

Which of the following statements about a prokaryotic cell is incorrect?

1. It has no Golgi apparatus

2. It is generally smaller than a eukaryotic cell

3. It has an impermeable membrane that encloses the DNA

4. Electron transport chain takes place at the cell membrane

Q. E. coli is a shaped bacteria.

1. rod
2. spiral
3. comma
4. oval

Q. What is the main differentiating feature between eukaryotic and prokaryotic cells?

1. Plasma membrane
2. DNA structure
3. Membrane-bound organelles
4. Cytoplasm