Question
What is differentiation and redifferentiation?
✓
Answer
- It is the maturation of cells derived from the apical meristem of the root and shoot. A permanent change in the structure and function of cells leading to maturation is called differentiation.
- During cell differentiation, the cell undergoes few to major anatomical and physiological changes. For example, Parenchyma in hydrophytes develops large schizogenous interspaces for mechanical support, buoyancy, and aeration.
- The maturation is at the cost of the capacity to divide and redivide.
The cells produced by dedifferentiation once again lose the capacity to divide and mature to perform specific functions. This is called redifferentiation. For example, secondary xylem and secondary phloem are formed from dedifferentiated cambium present in the vascular bundle.
Need a full question paper?
Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.
Explore more
Similar questions
Draw neat and labelled diagram of Replication Fork.
Label a, b, c in the following diagram.
Dust, Carbon monoxide, Lead, Smog, Methane, Mercury, DDT, Cadmium.
| Column A | Column B (Examples) |
| (1) Particulate pollutant | __________________ |
| (2) Gaseous pollutant | __________________ |
| (3) Biomagnification | __________________ |
| (4) Heavy metals | __________________ |
What was the composition of the primitive atmosphere that favoured abiotic origin of life on earth?
Comment on the Reproductive and Child Health Care programme of the government to improve the reproductive health of the people.
Why is the rate of assimilation of energy at the herbivore level called secondary productivity?
How many microsporangia are present in a typical anther of an angiosperm?
Give a detail account of thalassemia.
Where are fimbriae present in a human female reproductive system? Give their function.
Electrocardiogram (ECG).