Question
Explain arithmetic growth in plants.
✓
Answer
In arithmetic growth, following mitotic cell division, only one daughter cell continues to divide while the other differentiates and matures. The simplest expression of arithmetic growth is exemplified by a root elongating at a constant rate. Mathematically, it is expressed as: $L_t=L_0+r t L_t=$ length at time ' $t$ ' $L_0=$ length at time 'zero' $r=$ growth rate/ elongation per unit time.
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
Function of kidney is regulated by several mechanisms. Discuss reasons for this.
Why Ginkgo biloba is called living fossil?Explain how is it useful for horticulturists. What are its important features? Why horticulturists prefer to grow only male plants?
The essential functions of roots are anchorage and absorption of water and minerals in the terrestrial plants. What functions are associated with the roots of aquatic plants? How are the roots of aquatic plants and terrestrial plants different?
Neha while learning for her test, got confused how aerobic pyruvic acid is transported to mitochondria for further oxidation. She asked her elder sister (who is a graduate in biology) about this and also asked her to explain the same process in detail. Her sister explained her that it gets completely oxidised into $\mathrm{CO}_2$ and water along with the formation of ATP.
→- Mention the sites in the mitochondria, where these events occur.
- What happens to pyruvic acid before it enters 'Krebs' cycle?
- Write the summary equation for the 'Krebs' cycle.
- Mention the value implicit through Neha's character.
Cyanobacteria and heterotrophic bacteria have been clubbed together in Eubacteria of kingdom Monera as per the “Five Kingdom Classification” even though the two are vastly different from each other. Is this grouping of the two types of taxa in the same kingdom justified? If so, why?
Describe briefly the three physical properties of water which helps in ascent of water in xylem.
Enumerate the economic significance of bryophytes.
Inflammatory responses can be controlled by a certain steroid. Name the steroid, its source and also its other important functions.
Which features make mammals as the most successful and dominant animals?
Name the two basic phases of cell cycle and differentiate between the two.