Biology
Given below is the structure of a bacterial cell. Match the structures marked (a) to (e) with their function or characterstics given.
Example: (f)-6: Lies immediately beneath the cell wall and surrounds the cytoplasm.
Answer
| Structure of bacterial cell | Function / Characteristic |
|---|---|
| (a) Flagellum | 2. Locomotory structure |
| (b) Bacterial chromosome | 3. Composed of DNA |
| (c) Glycogen granules | 5. Stored food material |
| (d) Cell wall | 4. Made up of peptidoglycan |
| (e) Capsule | 1. Protective layer |
| (f) Cell membrane | 6. Lies immediately beneath the cell wall and surrounds the cytoplasm. |
Related Questions
Assertion (A): Pasteurization is a technique of complete sterilization applied usually to milk, meat, fish, etc.
Reason (R): Pasteurization kills a majority of the bacteria usually present in milk.
- A is True and R is False.
- A is False and R is True.
- Both A and R are True.
- Both A and R are False.
Assertion (A): Black rot of mustard is a fungal disease whereas black rot of cauliflower is a viral disease.
Reason (R): Both black rot of mustard and cauliflower are bacterial diseases.
- A is True and R is False.
- A is False and R is True.
- Both A and R are True.
- Both A and R are False.
Fill in the blanks:
- The specific genus to which several species of yeast belong is …………… .
- …………… is a unicellular fungi.
- Alcoholics may develop body ailments like …………… due to over consumption of alcohol.
- The curd from which moisture has been removed is termed as …………… .
- Cheese is a good source of vitamin …………… and …………… .
Given below is a flow chart of 'Nitrogen Cycle'. Read the information after the diagram and fill in the blanks.
Nitrogen is one of the essential elements for the growth and development of plants. About 79% of the atmosphere is Nitrogen but plants cannot obtain it directly from the atmosphere.
Plants can obtain nitrogen only in the form of nitrates, which they absorb from the soil through roots. These nitrates are replenished in the soil by bacteria through the process of (a) …………… . Some bacteria convert nitrogenous wastes of plants and animals into (b) …………… which are then converted into (c) …………… compounds. Further, these compounds are converted into nitrites and nitrates by bacteria (d) …………… and (e) …………… respectively.