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Confirm which factors increases or decreases the rate of photosynthesis.

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  • Essay length: 5153 words
  • Submitted: 05/03/2004
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GCSE Green Plants as Organisms

The first 200 words of this essay...

Introduction

Aim

My aim in this coursework is to investigate the factors, which affect photosynthesis. My aim is to confirm which factors increases or decreases the rate of photosynthesis.

The factors are

* Carbon dioxide,

* Chlorophyll

* Light intensity

* Water

The building-up of complex food molecules from simpler substances is called a synthesis and it needs enzymes and energy to make it occur. Enzymes those are present in the plant's cells and the energy for the first stages in the synthesis comes from sunlight. The process is, therefore, called photosynthesis ('photo' means light).

Photosynthesis is the main type of auto tropic nutrition. There are two fundamentally different methods of nutrition. Animals and certain other organisms take in ready-made organic substances; this is known as heterotrophic nutrition. Other organisms, notably plants, take in simple inorganic substances which they then build up into complex organics substances, this is known as auto tropic nutrition.

The importance of photosynthesis

Heterotrophs, including humans, all depend on photosynthesis for making their food. The manufacturing of sugar (starch) during the process of photosynthesis is astounding. For example: a hectare of maize can convert

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