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Karlton Tatum

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What is DNA Transcription Simplified

Understanding Why DNA Transcription is Necessary DNA is used as a template to make mRNA, which contains the information to make a polypeptide. DNA is indeed an information storage unit. For genes to be expressed, the information in them must be accessed at the molecular level. Rather than accessing the information directly, however, a working copy of the DNA, composed …

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What is Lactose Intolerance Simplified

Understanding Why Lactose Intolerance Exists With rare exceptions, the milk of all mammals contains lactose. A human with lactose intolerance can’t digest lactose because the intestinal enzyme lactase, is either inactive, absent, or present only in very small amounts. Symptoms of this condition don’t appear until a child is several years old. Milk is the sole food of most mammals …

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Plant Cell Organelles Simplified

Examples of Organelles in Plant Cells Knowing the major organelles in a plant cell is important to learning the major functions carried out by cells plants. Central Vacuole In plants, the central vacuole is a membrane enclosed space in the center of the cell, and is filled with water. This vacuole often the largest structure inside the cell and keeps the plant …

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Animal Cell Organelles Simplified

Knowing the major organelles in an animal cell is important to learning the major functions carried out by cells in your body.

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What is the Cell Membrane Simplified

Cell membranes are an essential characteristic of all living cells. The plasma membrane is the structure that separates the internal contents of a cell from its external environment.

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What are Eukaryotic Cells Simplified

Understanding the Basics of Eukaryotic Cells Aside from prokaryotes, all other species are eukaryotes which include: protists, fungi, plants, and animals. The key characteristics that make eukaryotes different from prokaryotes are the presence of a true nucleus and organelles. The DNA of all eukaryotic  cells are in the nucleus, which is an example of an organelle. Organelles are the “organs” of …

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What are Prokaryotic Cells Simplified

Understanding the Basics of Prokaryotic Cells The two categories of prokaryotes are bacteria and archaea. Both types are microorganisms that are relatively small. Bacteria are abundant throughout the world. They are found in soil, water, and even our digestive tract. Most bacteria are not harmful to humans, but some are pathogenic- disease causing bacteria. Archaea are less common that bacteria …

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What are Cells Simplified

Understanding the Basics of Cells The simplest unit of living organisms are cells. The Cell Theory state that all organisms are made of cells.Unicellular organisms are made of one cell; multicellular organisms such as plants and animals contain many cells that have specific functions. Overview of the Cell Structure The cell structure relies on four critical components: (1) matter, (2) energy, …

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