By: Jennifer Vose
Organisms can be either autotrophs or heterotrophs. Autotrophs, or literally "self-feeders," are capable of creating their own food through the processes of photosynthesis or chemosynthesis. Heterotrophs, "other-feeders," rely on autotrophs as a food source.Photosynthesis is the process where photoautotrophs capture light energy...
By: Jennifer Vose
Mitochondria are intracellular structures responsible for harvesting the energy from food. They are bean-shaped organelles (a term referring to structures within a cell that perform a function) and have a series of external and internal membranes. Mitochondria are the sites of cellular respiration. In cellular...
By: Jennifer Vose
Meiosis is the division of cells for the purpose of making gametes, or sex cells. Sex cells are different from somatic, or body cells. Sex cells have half the chromosomes of somatic cells. This halving of chromosomes is achieved through the steps of meiosis.In...
By: Jennifer Vose
The cell theory states that all living things are made of one or more cells, cells are the basic units of structure and function for living things, and cells can only arise from pre-existing cells. The cell, therefore, is integral to an understanding of life...
By: Jennifer Vose
Protein synthesis is the building of proteins, essential organic compounds for intra- and extracellular functions. Proteins are molecules that provide structure and support for living things, as well as catabolizing chemical reactions in their enzymatic roles.In the cell, the instructions for building the myriad...
By: Imesha Jayathilake
Would stem cell research be responsible for taking or saving a life? Stem cell research; may be there hasn't been another topic, which has sparked more controversy for being so ethical. It has been debated about in the scientific community ever since it made to...
By: David Wright
Mitosis is the process by which eukarotic cells divide, the two daughter cells produced are identical (with a few mutations): in addition to this there is another important difference, that is that the cells produced are diploid (2n) rather than haploid (n) as is the...
By: Perry McCarney
RNA (ribonucleic acid) is a type of vital organic molecule that enables our bodies to be built from the blueprints of the DNA (deoxyribonucleic acid) inherited from our parents. Without RNA life would not be possible, not only for us but for all organisms, be...
By: David Wright
The endoplasmic reticulum is an organelle found in eukaryotes consisting of a continuation of the nuclear membrane in cisternae that are held in shape by various cytoskeletal systems. These membranes enclose a region from the cytoplasm and so can form vesicles that can eventually leave...
By: Anita Gates
The relationship between the structure of DNA and three different biological functionsGenes are composed of DNA, which can function as hereditary material.DNA has the ability to replicate; the capacity to carry information and to process this information within the cell.A DNA molecule (...

 

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