The effect of Different Color Light on Bean seed Plant Growth Light is essential for every plant. Chlorophyll allows plants to convert energy from light into sugars. (Mathews 2001 ; Sanchez 1975). Light provides the energy plants need to make the food required for them to grow and flower. Plants are the only organisms able to use light to produce sugars, starches and other substances needed by them as well as by other living organisms. (Mathews 2001, Flowerdew 2006). The study of the effect of different color light on bean seed plant growth can give valuable insight into how plants grow, and how to grow plants in places with limited light. Lack of light is a common factor in limiting the growth of plant, so if you live in Alaska where natural light is not always an option or if you have a house plant it can be very helpful to know which color lights will promote plant growth. By looking at different color lights it can be determined which light would be most effective in promoting plant growth. The natural sunlight most plants use to grow can be broken up using a prism to show many different colors. Red and blue light have the greatest effect on plant growth within the spectrum, while green light has the least effect on plant growth. Many authors hypothesized that when a plant is under constant light it will grow taller and faster due to an increase in the amount of photosynthesis time. There are many different factors that contribute to plant growth, but by looking at light we can
General types of cellular structure:
(e.g., bacteria and blue-green algae)
(e.g., plants and animals)
Professional Publications, Inc.
Cellular Biology: Cell Structure—Prokaryotes
• Single-cell organisms with a
primitive nucleus that lack a
• Reproduce asexually by binary
fission (dividing in two)
Components of prokaryotic cells:
• Periplasmic space…
fluorescent versus Incandescent light ON plants
What is the Effect of Fluorescent Light versus Incandescent Light on Indoor Plants
Upper Iowa University
Experiment measuring growth of plants using different light environments indoors. I used three tomato plants for this experiment. The test group is one tomato plant under a fluorescent light bulb and the second under an incandescent light bulb. The control group is a tomato plant in the sun. Constants were the water…
KS3 Biology Contents February 2005 7A Cells
This interactive presentation is designed to teach: • • • • • that cells are the basic units of life; the structure and differences of typical animal and plant cells; the different functions of cells; the organization of cells into tissues; how cells divide and why.
7A Cells contains 40 slides which includes 13 Flash activities: • • • • • • • • • • • • • animation to illustrate the seven life processes; comparing a cell to a factory; activity relating…
AQA GCSE Science BIOLOGY 2 Unit B2.3 Photosynthesis
Know that all green plants and algae use light energy to make their own food.
Know that all green plants and algae obtain the raw materials they need to make this food from the air and the soil.
Know that the conditions in which plants are grown can be changed to promote growth.
You should be able to use your skills, knowledge and understanding to be able to:
interpret data showing how factors affect the rate of photosynthesis…
and package food products.
An agricultural and food scientist would communicate research findings to the scientific community, food producers, and the public. The scientists study the composition of soil in different areas because it relates to plant growth. Agricultural and food scientist play a role in maintaining the nation’s food supply. You could work in the basic or applied research and development section of this job. In basic research you would study the biological and chemical processes of…
REVIEW 3: NUTRITION, RESPIRATION & PHOTOSY/NTHESIS
NUTRITION AND METABOLISM
All living organisms need energy and nutrients. The energy is used for many purposes, such as
synthesis → building more molecules
growth → making new cells to grow larger
repair → making new cells to mend injuries
locomotion → moving around in the environment
The nutrients are also…
0708-AS Biology Revision Top Priority Questions
TOP 60 QUESTIONS
1- Fig.1.1 is an electron micrograph of a mesophyll cell from a leaf.
(a) Calculate the magnification of Fig.1.1. Show your working and express your answer
to the nearest whole number.
(b) Identify, by using the letters A to D, a part of the cell shown in Fig. 1.1 where the
following substances are located.
(c) State three ways in which the structure…
– Enteric (gut) bacteria
– Chemoautotrophs – feed off
Sec. 2: Biology of Bacteria
– Cell wall made of peptidoglycan
(short chains of amino acids and
•Gram negative bacteria have
outer membrane of lipids and
sugars that protects them from
Cell Wall Structures: + and -
Biology of Bacteria
– Cell Membrane
•Composed of lipid bilayer
•Since bacteria have no
mitochondria the cell membrane…
The Spectrum of Life
Peter Aubusson • Eileen Kennedy • Peter Hickman
253 Normanby Road, South Melbourne, Victoria 3205, Australia
Oxford University Press is a department of the University of Oxford.
It furthers the University’s objective of excellence in research,
scholarship, and education by publishing worldwide in
Oxford New York
Auckland Bangkok Buenos Aires Cape Town Chennai
Dar es Salaam Delhi Hong Kong Istanbul Karachi Kolkata…
Plant allelopathy is all around us; however a lot of people don’t know what it is. Allelopathy in a nut shell is chemical warfare between plants. Plants do this by creating chemicals that inhibit the germination and growth of neighboring plants. In a discussion with my Professor before the lab he talked about how we can notice and spot when a plants is allelopathic. In last week’s lab all the groups exposed seeds to two different types of plants, in order…