Energy Sources and Energy for Life


“Energy Sources and Energy for Life”

Note: Online students, please respond to one (1) of the following three (2) bulleted items.
•Discuss three (3) types of energy sources used by cells then provide two (2) examples of when / in what cells / situations your chosen energy sources are used. Next describe two (2) forms of transport within the cell and the specific energy source used in each form of transport.

•The effectiveness of dieting has been debated for years. There are several diets available including Atkins, Zone, Carbohydrate, Weight – Watchers, Jenny Craig, Dukan, Mediterranean, or 22 Day Vegan. Choose two (2) diets that were listed previously then explain four (4) effects each of your selected diets has on one’s energy and overall health including any hazardous effects.

Sample paper

Energy Sources and Energy for Life

Biology is an important part of human life considering that it provides an opportunity to study life. According to biology, cells are the basic unit of life. Notably, they are the small world that performs all the functions of life. Research shows that cells get their energy from food molecules and sunlight. Generally, there three major sources of energy for almost all cells and they include sunlight, sugar, and fats as well as Mitochondria. However, each form of cellular energy is used differently to ensure that the cell remains healthy and performs its basic duties. The solar energy is harnessed by the chloroplast and used to produce sophisticated organic molecules that other cells use for the energy needed to sustain growth, metabolism, and reproduction. Sugar and fats are taken in through the permeable membrane and broken down into simple sugars (In Yang & In Li, 2017). Through this process, energy is released which is used by the cell. Finally, mitochondria provide energy source required for movement by the cell. This energy is substantially used during the feeding and reproduction processes.

Related: Mitochondria, Water, Molecules, and Cell Structures 

Some of the common forms of transportation that happen in the cell include osmosis and diffusion. Osmosis is the movement of materials in and out of the cell through the permeable membrane. Molecules move from the environment into the cell this requires some form of energy, in the form of ATP. On the other hand, facilitated diffusion is the movement of nutrients from an area of higher concentration to an area of lower concentration, this form of transport requires no energy. However, some materials cannot be easily diffused unless they are facilitated (Gibson & Ashby, n.d). Cells can support and control the diffusion of these materials using membrane protein. The energy in the form of ATP is required to facilitate this form of diffusion.


Gibson, L. J., & Ashby, M. F. (n.d.). Energy absorption in cellular materials. Cellular Solids, 309-344. doi:10.1017/cbo9781139878326.010

In Yang, C., & In Li, J. (2017). Interference mitigation and energy management in 5G heterogeneous cellular networks.


Define the term species then provide three (3) examples of different species