Saturday, November 16, 2019

Plants And Animals Essay Example for Free

Plants And Animals Essay Similarities   Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚   There are several similarities between animal and plant cells.   Both have membranes that make compartments which isolate cell functions and processes.   Both cell membranes contain different parts that serve different functions.   Both plant and animal cells need energy to go about its daily functions.   And both species undergo cellular metabolism, which consists of many individual metabolic pathways; each one is a series of sequential chemical reactions that results in the production of something needed by the cell.   Finally, genes dictate the structure and appearance of cells of both plants and animals.    In both species, DNA remains the basic building block of life. Differences   Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚   There are also differences between plant and animal cells.   The main difference is how cell membranes react on various environments.   Cell membranes collapse when placed in different environments thus allowing the entrance of proteins, whereas, the environment affects animal cells in a variety of ways.   When animal cells are placed in an istonic solution, there was orderly absorption of protein, when the solution became hypotonic, the movement in the cells were almost halted whereas when it was placed in a hypwertonic solution, the cells were very fast moving.   Another difference is on how plants and animal obtain energy.   Animals obtain energy from eating, such as when man eats his dinner, while plants acquire energy through photosynthesis wherein they convert the sun’s energy for their own use. One more difference between plant and animals cells is on how they produce daughter cells.   In plant cells, membranous vesicles congregate at the equator of the dividing cell. These vesicles contain materials that will give rise to the new cell wall. The vesicles fuse, forming a cell plate.   The vesicles of the cell plate then fuse with the plasma membrane, producing two daughter cells. In animal cells, a cleavage furrow forms around the periphery of the dividing cell. The furrow becomes progressively deeper until it pinches the cell and its contents into two new cells. Internal Structures of Plant and Animal Cells Cell membrane – as earlier stated, cell membranes are the ones responsible for dividing the parts of a cell DNA – these are the ones that tell what the plant or animal should look like. Chromosomes – chromosomes are those responsible for the sex of the animal.   These are also found in plants. Integral proteins are those membrane proteins that are responsible for the transport of energy Lipid–Anchored Proteins    these proteins are the ones responsible fro transmitting signals from the outside to the inside of cells.

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