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A Comparision of Nutrition in Plants and Animals.

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´╗┐Comparison of nutrition is plants and animals Plants and animals both need nutrition to survive being different species they have a lot of differences in their nutrition intake and how they break it down. However, plants and animals do have similarities such as nutrients they need. Firstly, plants make their own glucose, which is a form of energy, via the process of photosynthesis. Photosynthesis converts carbon dioxide, water into glucose and oxygen in the presence of sunlight. Plants get carbon dioxide from the atmosphere and it is diffused into the leaf through the small holes in the underside of the leaf called the stomata. The water is absorbed through active transport by the root hair cells. Sunlight is absorbed by the layer of palisade cells which absorb sunlight and have a lot of chloroplasts. The chloroplasts carry out the photosynthesis because they have chlorophyll which absorbs the sunlight and allows it to be used. Plants also need minerals and nutrients too such as magnesium and potassium. On the other hand, animals have different dietary requirements as they require seven essential things including carbohydrates, minerals, vitamins, water, fibre, fat and protein. ...read more.


Each part of the plant has its own job to play in getting plants the energy. The chloroplasts in the palisade layer are right at the top so they can get a lot of sun. The cuticle is transparent to allow sunlight to pass while protecting the plant. The chlorophyll contains magnesium to give it the leaf a green shade allowing it to capture light. Additionally, the mesophyll layer is very thin because this allows the gases to diffuse very quickly. The leaf has a very large surface area to volume ratio hence it can allow photosynthesis to occur quicker. On the other hand, nutrition in animals is only dealt by the digestive system which involves the mouth, oesophagus, liver, stomach, pancreas, small intestine, large intestine, rectum and anus. This shows that most of the body is not actually used during when animals consume food. While breathing only the respiratory system is used which mainly involves the lungs, not the whole body therefore, being so different to plants which use all of their different parts to gain energy. ...read more.


This is different to plants as the plants keep protein as it is and is not stored as anything different to what it already is. Overall plants and animals do have a lot of similarities however; they have very obvious differences which set them apart from each other and their ways of nutrition. The nutrition is also treated differently as animals break it into much smaller things while plants keep it in its basic for except glucose. Similarities Differences Both respire to get energy Plants use photosynthesis as well as respiration for energy Both need water to survive Plants need sunlight and carbon dioxide Both need protein and glucose Plants use all parts for photosynthesis Both have a transport system in the body (Plants have xylem and phloem while animals have blood vessels) Animals only use respiratory and digestive system Both animals and plants have to have minerals such as iron, magnesium etc. Plants store their glucose as starch while animals break it down into monosaccharaides Animals break down protein into amino acids while plants don?t Plants make their own glucose through photosynthesis Animals have seven nutrients that must consume to be healthy Plants can use nitrogen directly from the atmosphere through nodules ...read more.

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