Examination of Onion Peel
Trending Questions
Q.
Who named the material of the nucleus chromatin?
Q. Given is an image of onion peel under microscope. Identify A and B in the figure and match them with their function.
- A: Nucleus - helps in maintaining cell structure
B: Cytoplasm - help in the inheritance of characters from parents to offspring - A: Cytoplasm - help in the inheritance of characters from parents to offspring
B: Nucleus - helps in maintaining cell structure - A: Nucleus - help in the inheritance of characters from parents to offspring
B: Cytoplasm - helps in maintaining cell structure - A: Cytoplasm - help in the inheritance of characters from parents to offspring
B: Nucleolus - helps in maintaining cell structure
Q.
Identify A and B in the figure and state their function. [3 MARKS]
Q. How is a nuclear pore different from nucleolus?
Q. Abhi observed the following cell parts of two different cells under a microscope. He recorded his observation in the table given.
| Part of Cell | Cell 'X' | Cell 'Y' |
| Cell wall | Present | Absent |
| Cytoplasm | Present | Absent |
| Nucleus | Present | Absent |
| Cell membrane | Present | Absent |
| Chloroplast | Present | Absent |
- X- Animal cell; Y- Plant cell
- X- Plant cell; Y- Animal cell
Q. How is a nuclear pore different from nucleolus?
Q.
Identify A and B in the figure and state their function. [3 MARKS]
Q. Rahul was working on an experiment on the cells of onion peel. While observing the cells under the microscope, he finds many cells with thin thread like structures in their nucleus known as 'A'. In few other cells there were thick conspicuous X shaped structures called 'B' and in such cells he couldn't find the nuclear membrane. What is A and B?
- A- Chromosome, B- Chromatin Fibres
- A- Chromatin Fibres, B- Chromosome
- A- Protein Fibres, B- Organelles
- A- Organelles, B- Protein fibres
Q.
Four students labelled the diagram of an onion peel in the following ways. The correctly labelled diagram is
B
C
D
A
