Why there would be no people without plants
Oxygen is a basic requirement for the survival of mankind. This is because it aids in the bodys respiration process. On the other side, although plants respire just like we do, they do so only for few hours in a day. Plants make their own through a process called photosynthesis. This process requires water, nutrients from the soil, sunlight and carbon dioxide. This paper is written to support the fact that there could be no people without plants.
According to scientific evidence, plants mostly breathe in carbon dioxide through tiny hole in their leaves referred to as stomata (Jowsey, 2007). Still, plants have chlorophyll which acts to capture energy from the sunlight which is used in the process of making food in a process called photosynthesis (Khara, 2009). It is to be noted here that plant food is made by combining water and carbon dioxide with sunlight energy as a catalyst to produce sugar, starch and oxygen. This oxygen is released through the leaves into the air. On the other side, human beings take in this oxygen for respiration, a process which leads to the breakdown of sugar into energy, water and carbon dioxide. It is this carbon dioxide which we breathe out. This is the reason why human beings and plants are mutually dependent on each other (Manning, 2008).
However, it is worth noting that all living things including plants need oxygen for respiration. Although plant use carbon dioxide to makes the food we eat, they still need part of this food for growth andor remain healthy. This process is called respiration and requires the intake of oxygen. During the process of respiration, plants breathe out carbon dioxide, which is a by product of starch and oxygen (Khara, 2009). Just to be stated here is the fact that this process usually takes place during the night. It is due to this reason that the author claims that a plant in an air tight box without an oxygen source cannot survive.
The functioning of the human body mainly relies on the amount of food stored in the body and the bodys ability to break it down into energy, water and carbon dioxide. Therefore, human bodies do not make their own food. Plants are however capable of making their own food in the presence of sunlight energy thus giving out oxygen (Jowsey, 2007). However, during the night plant have to use energy for respiration. Therefore, means that people, unlike plants cannot survive alone. This is because they are not capable of naturally converting carbon dioxide to oxygen and verse versa.
The premature stoppage of the biosphere experiment of 1980s can be best explained based on the above reasoning. The aim of the project was to test sustainable living of a man. This meant living in a sealed space and planting trees for food and air purification. It is however to be stated that with increased plant, more carbon dioxide could be required for photosynthesis (Jowsey, 2007). Still, more oxygen was required by the plants to respire at night thus making it impossible for human beings to survive.
In conclusion, it is quite clear that without plants, people cannot survive. This is because plants act to purify air for people to use. Plants breakdown carbon dioxide to give oxygen in a process called photosynthesis. However, plant still need oxygen for respiration especially during. This competition for oxygen between plant and human beings is what led to the premature stopping of the biosphere experiment.
According to scientific evidence, plants mostly breathe in carbon dioxide through tiny hole in their leaves referred to as stomata (Jowsey, 2007). Still, plants have chlorophyll which acts to capture energy from the sunlight which is used in the process of making food in a process called photosynthesis (Khara, 2009). It is to be noted here that plant food is made by combining water and carbon dioxide with sunlight energy as a catalyst to produce sugar, starch and oxygen. This oxygen is released through the leaves into the air. On the other side, human beings take in this oxygen for respiration, a process which leads to the breakdown of sugar into energy, water and carbon dioxide. It is this carbon dioxide which we breathe out. This is the reason why human beings and plants are mutually dependent on each other (Manning, 2008).
However, it is worth noting that all living things including plants need oxygen for respiration. Although plant use carbon dioxide to makes the food we eat, they still need part of this food for growth andor remain healthy. This process is called respiration and requires the intake of oxygen. During the process of respiration, plants breathe out carbon dioxide, which is a by product of starch and oxygen (Khara, 2009). Just to be stated here is the fact that this process usually takes place during the night. It is due to this reason that the author claims that a plant in an air tight box without an oxygen source cannot survive.
The functioning of the human body mainly relies on the amount of food stored in the body and the bodys ability to break it down into energy, water and carbon dioxide. Therefore, human bodies do not make their own food. Plants are however capable of making their own food in the presence of sunlight energy thus giving out oxygen (Jowsey, 2007). However, during the night plant have to use energy for respiration. Therefore, means that people, unlike plants cannot survive alone. This is because they are not capable of naturally converting carbon dioxide to oxygen and verse versa.
The premature stoppage of the biosphere experiment of 1980s can be best explained based on the above reasoning. The aim of the project was to test sustainable living of a man. This meant living in a sealed space and planting trees for food and air purification. It is however to be stated that with increased plant, more carbon dioxide could be required for photosynthesis (Jowsey, 2007). Still, more oxygen was required by the plants to respire at night thus making it impossible for human beings to survive.
In conclusion, it is quite clear that without plants, people cannot survive. This is because plants act to purify air for people to use. Plants breakdown carbon dioxide to give oxygen in a process called photosynthesis. However, plant still need oxygen for respiration especially during. This competition for oxygen between plant and human beings is what led to the premature stopping of the biosphere experiment.
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