StudentShare
Contact Us
Sign In / Sign Up for FREE
Search
Go to advanced search...

Effect of cold stress on photosynthesis in barley - Essay Example

Cite this document
Summary
Name: Institution: Tutor: Course: Date: Effect of cold stress on photosynthesis in barley PART 1 Definition In every day activities, plants and other organisms undergo various processes for the sustenance of their being. Some of these processes are simple, while others are quite complex…
Download full paper File format: .doc, available for editing
GRAB THE BEST PAPER93.4% of users find it useful
Effect of cold stress on photosynthesis in barley
Read Text Preview

Extract of sample "Effect of cold stress on photosynthesis in barley"

Download file to see previous pages

Consequently, it may be referred to as the process by which light energy is converted into chemical energy and stored in sugar bonds in green plants. Basic photosynthetic knowledge notes that green plants breath in carbon dioxide during the day and combines the said molecules to those of water molecules especially hydrogen in the synthesis of nutrients. Consequently, in green plants, photosynthesis involves the use of the chlorophyll green pigment that is found in the leaves or stems of such plants.

As resultant by-product for the photosynthesis process is usually oxygen. In this context, plants are usually termed as essential purifiers of air. However, since photosynthesis is a process that takes place in the presence of sunlight, it does not occur during the night (Eaton-Rye, Baishnab & Thomas 66). As such, plants take in oxygen during the night and release carbon dioxide. As a topic, the study of photosynthesis is particularly of interest to farmers and scientists. Factors that may affect the rate of photosynthesis Basically, there are three main factors that are known to have an effect on the rate of photosynthesis.

They include: i. Light intensity ii. Carbon dioxide iii. Temperature In this discussion, I will illustrate how each affects the rate of photosynthesis. i. . From this graph, it is evident that there is a significant increase in rate of photosynthesis between point A and B. however, after point B, the rate begins to decline and later becomes constant up to point C. Within these two points (B and C), there is no effect on photosynthesis rate even with an increase in the intensity of light. Consequently, too much light intensity may damage the chloroplast of leaves: hence, the strategic arrangement of leaves in a plant without any overlaps (Kalman 25). ii. Carbon dioxide: The rate of photosynthesis linearly increases with an increase in the concentration amount of carbon dioxide available to a plant.

Scientifically, the earth is composed of a varying carbon dioxide amount of between 0.03% and 0.04%. Therefore, a high concentration of it will lead to higher photosynthetic rates. However, this increase is up to a particular point, from which it begins to decline and ultimately becomes constant. This is as shown in the graph below. In this graph, points A to B indicate an increase in rate of photosynthesis, while points B to C indicate the decline and constant level of the same. iii. Temperature: With this factor, the higher the rate of temperature the greater will be the photosynthesis rate.

Since photosynthesis is a chemical process, its rate will increase with higher temperatures as most of the other chemical process. However, the increase in temperatures beyond 400C, will lead to the rate of photosynthesis beginning to decline or slow down. The reason for this is that enzymes responsible for photosynthetic chemical process are sensitive to temperatures hence, destroyed at high/extreme temperatures levels. Consequently, it should be

...Download file to see next pages Read More
Cite this document
  • APA
  • MLA
  • CHICAGO
(“Effect of cold stress on photosynthesis in barley Essay”, n.d.)
Retrieved from https://studentshare.org/biology/1493440-effect-of-cold-stress-on-photosynthesis-in-barley
(Effect of Cold Stress on Photosynthesis in Barley Essay)
https://studentshare.org/biology/1493440-effect-of-cold-stress-on-photosynthesis-in-barley.
“Effect of Cold Stress on Photosynthesis in Barley Essay”, n.d. https://studentshare.org/biology/1493440-effect-of-cold-stress-on-photosynthesis-in-barley.
  • Cited: 0 times

CHECK THESE SAMPLES OF Effect of cold stress on photosynthesis in barley

Biomass Energy in a Future Global Sustainable Energy System

The major constituents of biomass energy production are wheat, barley and corn and they are seasonal crops.... Prospects and Problems of Biomass Energy in a Future Global Sustainable Energy System Contents Biomass Energy 3 Problems of biomass energy 3 Prospects of biomass energy 5 References 10 Biomass Energy Research is in progress around the world to explore new paths that will bring out solutions to the environmental hazards that human beings have to face in the present world....
7 Pages (1750 words) Research Paper

The Definition of Photosynthesis

6CO2 + 6H2O – sunlight – C6H12O6 + 6O2 Virtually all ecosystems on earth depend on photosynthesis as their source of energy.... Research leader, Donald Ort, conducts scientific studies on photosynthesis from his field office – the ARS Global Change and Photosynthesis Research Unit in Urbana, Illinois.... photosynthesis: Current scientific research and studies Name: Class #: Date: High School's Name: Introduction The definition of ‘photosynthesis' is critical in gaining an understanding of why the photosynthetic processes are important....
5 Pages (1250 words) Essay

The Effect of Nutrients Deficiency on the Growth of Rye and Barley

Name Institution Date The effect of nutrients deficiency on the growth of rye and barley.... In attempts to understand the factors that affect growth and development of plants, an experiment was set to investigate the effect of nutrients deficiency on the growth of rye (Secale cereal) and barley (Hordeum vulgare).... For this reason, this experiment was set to investigate the effect of nutrients to the growth of plants.... The aim of the study was to develop the skills for planning and carrying out a scientific investigation, as well as establishing the effect of nutrients on the growth of plants....
6 Pages (1500 words) Lab Report

Hills Reaction to Demonstrate the Electron Transfer during the Light Reaction of Photosynthesis

HILL'S REACTION TO DEMONSTRATE THE ELECTRON TRANSFER DURING THE LIGHT REACTION OF photosynthesis By: Presented to: Date: Institution: Aim The aim of the practical is to learn about cell fractionation and how isolated thykaloid membranes can be used for photosynthetic reactions (Lab 6, n.... It is aimed at demonstrating the Hill reaction of photosynthesis and the reaction conditions that affect it.... At the end of the practical, the learner should produce a report that can be used by other scientists to understand the light dependent reaction in photosynthesis and the electron transfer to high energy molecules like ATP and NADP+ and how they are substituted by DCPIP (Dichlorophenol Indophenol) in the Hill reaction to demonstrate the same....
4 Pages (1000 words) Essay

Influence of Temperature on the Photosynthetic Rate of Leaf Disks

Thus leaf disks that fail to float are those in which photosynthetic oxygen evolution has not occurred (and hence in which photosynthesis is absent).... In recent years, there has been renewed interest in evaluating plant responses to elevated temperature owing to the green house effect....
6 Pages (1500 words) Lab Report

Photosynthesis

The experiment will determine the effects of blue and green light on the rate of photosynthesis in leaf discs of English ivy (Hedera Helix).... Blue light has been identified to have a higher absorbance by pigments of photosynthesis in plants and it also has a higher energy wavelength compared to green light.... During… Complex reaction of photosynthesis that takes place in the leaves can be summarized as follows: An experiment was carried out to investigate the effects of color of Leaf discs used in this experiment have chloroplasts and contain the green coloring matter, chlorophyll; therefore photosynthesis takes place in the given leaves under favorable conditions....
4 Pages (1000 words) Lab Report

The Process of Photosynthesis

This research paper "The Process of photosynthesis" discusses photosynthesis as a biochemical process that takes place in green plants to manufacture sugar which is used as the main source of energy for plants.... The process of photosynthesis takes place in plant leaves, in particular cell components in the leaves known as chlorophyll.... he process of photosynthesis involves the combination of water and carbon dioxide in the presence of light energy to form sugar and oxygen6CO2 + 6H2O ---sunlight---> C6H12O6 + 6O2The chlorophyll in the leaves absorbs the light energy which is used in the process of photosynthesis....
8 Pages (2000 words) Research Paper

The Physiological Response Mechanisms of Plants to Climate Change

Global change in climatic conditions has been a result of the greenhouse effect which is mostly caused by emissions of gasses such as carbon dioxide and nitrogen gasses among others.... … The paper "The Physiological Response Mechanisms of Plants to Climate Change" is a great example of a term paper on environmental studies....
12 Pages (3000 words) Term Paper
sponsored ads
We use cookies to create the best experience for you. Keep on browsing if you are OK with that, or find out how to manage cookies.
Contact Us