Plastids, Biology

Assignment Help:

Plastids

  1. The term plastid first used by Haeckel (1865).
  2. These are present in plants and few protists (Euglena).
  3. On the basis of function plastids are of three types - Leucoplast, Chloroplast and Chromoplast. All types of plastids have common origin from proplastids, sac like non-lamellar structures. Different types of plastids may transform from one form to another. But chromoplasts never transform to chloroplasts.

1825_plastids.png


Related Discussions:- Plastids

Stratification of vegetation - qualitative characters, Stratification of Ve...

Stratification of Vegetation - Qualitative Characters Stratification of vegetation is another important feature of plant communities. There are different vertical strata in di

Explain the activity of decomposers, Why are producers the first trophic le...

Why are producers the first trophic level to advantage from the activity of decomposers? Decomposers return nutrients in dead tissues and wastes to the soil or water; producers

Use of aldehydes as chemical sterilant, Q. Use of Aldehydes as chemical ste...

Q. Use of Aldehydes as chemical sterilant? Formaldehyde: widely employed for the fumigation of operation theatres. Glutaraldehyde: commercial preparations are active at

What is the change in allele frequency in a population, Microevolution is: ...

Microevolution is: the change in allele frequency in a population. Cannot occur if genetic equilibrium is reached. Results in the formation of a new species. Is influenced by mutat

Role of nerves - regeneration, Role of Nerves - Regeneration It has b...

Role of Nerves - Regeneration It has been seen that soon after amputation nerves invade the regeneration blastema. If the stump is denervated by cutting the nerves supplying

What are neurons, Question 1 Give the definition and describe the mechanis...

Question 1 Give the definition and describe the mechanism of Active transport. Passive transport with suitable examples Question 2 What are neurons? List out the

Show the process of cell-to-cell communication, On the overall process of c...

On the overall process of cell-to-cell communication within the nervous system, what role does the Ca2+ play in the synapse? A) contributes in the biosynthesis of acetylcholine B)

Coelenterata, is cnidaria having both interacellular & extracellular digest...

is cnidaria having both interacellular & extracellular digestion?

What is the digestive enzyme that acts within the stomach, Q. What is the d...

Q. What is the digestive enzyme that acts within the stomach? Which type of food does it digest? What are the cells that produce that enzyme? The digestive enzyme that acts in

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd