Natural Indicators

Essay specific features

 

Issue:

Science

 

Written by:

Karen W

 

Date added:

February 17, 2015

 

Level:

University

 

Grade:

A

 

No of pages / words:

4 / 988

 

Was viewed:

9753 times

 

Rating of current essay:

 
Essay content:

The short, cool days of autumn bring an end to the production of chlorophyll (the green light-gathering pigment). As chlorophyll gradually breaks down, the colors of the more stable carotenoid (yellow/orange) and anthocyanin (red/blue/purple) pigments become visible. Some years the leaves of a particular species are bright yellow, while other years they may appear redder or even purple...
displayed 300 characters

Custom written essay

All essays are written from scratch by professional writers according to your instructions and delivered to your email on time. Prices start from $10.99/page

Order custom paper

Full essays database

You get access to all the essays and can view as many of them as you like for as little as $28.95/month

Buy database access

Order custom writing paper now!

  • Your research paper is written
    by certified writers
  • Your requirements and targets are
    always met
  • You are able to control the progress
    of your writing assignment
  • You get a chance to become an
    excellent student!

Get a price guote

 
 

Some years the leaves of a particular species are bright yellow, while other years they may appear redder or even purple. Although no one can accurately predict the timing or coloration of each year's show, we do know that there is a chemical basis for it. Anthocyanins (Figure I) are responsible not only for the red and purplish colors of autumn, but also for similar colors in various summer leaves (red cabbage, red lettuce, red plum tree), flowers (roses, hydrangeas, geraniums, bachelor buttons, dark pansies), fruit (cherries, red apples, grapes, tomato, blackberry, blueberry, plum), roots (beets, radishes), bulbs (red onions), and petioles (rhubarb)...
displayed 300 characters

General issues of this essay:

Related essays:

x
Services