Compare And Contrast Plant And Animal Cells

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B) Compare & contrast: Plant & Animal cells.

Although plant and animal cells contain numerous similarities, they also feature prevalent significant differences. Animal and plant cells not only have functional differences but also have structural differences. Plant and animal cells both have a nucleus which is the control centre of the cell, it controls how the cell develops and how it reproduces. DNA is the genetic makeup of a cell, organ and body systems, the DNA in a cell is held and organised into discrete chromosomes by the nucleus. The nucleus also creates new ribosomes by extracting Ribosomal ribonucleic acid, (rRNA) which is synthesised instructions from the DNA and putting the rRNA with assembled proteins. Together the rRNA and
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In contrast to the plant cell with a cell wall unlike the animal cell; the cell wall is an extracellular wall that protects, maintains shape and prevents the cell from taking up too much water. The outside layer of protection for the animal cell is the cell membrane, which is the second from the outside in the plant cell. Animal cells have a larger variety of shapes and sizes then what the plant cells have because of the cell wall on the plants is stiff and makes the cell a certain shape. The cell membrane on an animal cell is more flexible than a cell wall that surrounds a plant cell; this lets animal cells have more varies in shapes because the organelles inside are not so tightly compacted. The cell wall around the plant cell allows the plant to stand tall and upright without the need of bones. Animals have either endoskeletons or exoskeletons to maintain their shape and structure while the cell wall is practically a exoskeleton for a plant to maintain their shape and structure. The cell wall surrounding plant cells is the reason why most plant they have a square or rectangular shape. Another difference is that chloroplasts are present in plant cells, while absent in animal cells. Chloroplasts are a very important organelle for the plant cell because it is the organelle that photosynthesises; turns the energy from sunlight into chemical energy which is stored in sugar …show more content…
The small intestine absorbs nighty percent of the nutrients that are consumed, the small intestines reach up to 6 to 7 meters in a full-grown person, [after death the small intestine continues to grow and increase length by up to three or four metres. Because the small intestine is so long it allows more surface area for nutrients to be absorbed and digestive juices to be secreted. Inside the small intestine, there is small finger-shaped that protrude from the intestine wall into the open space, on the external surface of the villi there are smaller epithelial cells which known as microvilli. The villi and microvilli increase surface area which serves the purpose of being able to secrete more digestive juices and absorb nutrients from the food consumed. In the small intestine fats, carbohydrates and proteins are broken up into smaller molecules, the process by which chemicals (enzymes) and water are used. The small intestine is more than double the large intestine, but less than half of the diameter, measuring just above two and a half centimetres. Food in the stomach has a high rate of acid, but once it enters the small intestine the acids are stabilized. The small intestine uses two movements to move the food around that is travelling the six metres in distance; the first

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