Sunday, August 11, 2019
Molecular Biology of the Cell Assignment Example | Topics and Well Written Essays - 1000 words
Molecular Biology of the Cell - Assignment Example Be it the way the petals of a sunflower are arranged, or the way feathers are organized on a birdââ¬â¢s wings, patterns will be observed. Even at the microscopic level, biological order exists. Organs, for instance, are composed of a single type of tissues. Tissues, on the other hand, are composed of a single type of cells. An organism is not simply a random collection of individual cells (Gerhardt et al., 1994). Rather, it is a product of an ordered grouping of cells. Next, living things demonstrate the ability to reproduce. According to the Cell Theory, only life begets life (Alberts et al., 1994). Only dogs bear pups; only trees give off seedlings, and only bears deliver bear cubs. The third property is growth and development. Over time, multicellular organisms increase in size, as a result of the increase in the number of cells in its body. Among unicellular organisms, growth can be observed as an increase in the size of its population (Beveridge et al., 2007). Development can not be any simpler than the ones at the cellular level when DNA replicates and microtubules elongate during the course of mitosis. Fourth, living things respond to stimuli. A Mimosa pudica, for example, will close its leaves if you touch them. A sea squirt will release water from its siphons when disturbed. Organisms, whether sedentary or mobile, respond to their environment. Finally, all organisms utilize energy. A butterfly, for instance, obtains food in the form of nectar and transforms it into energy to power its activities. It might not be possible to capture or observe all of these properties within three days (e.g. giving birth) especially if the organism is sedentary. In such cases, taking a piece from the target sample for further examination might be helpful. If these organisms share a resemblance to living creatures on earth, their building blocks are similar to the morphology and properties of cells.
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