Homeostasis Case Study

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1. What is the significance of homeostasis, and explain how homeostasis is maintained.
Homeostasis is described as capability of the body to maintain consistent conditions in the inner body, despite everything that is occurring outside of the body that could have an effect(Human Anatomy & Physiology, 8). The significance of homeostasis is that as the body becomes less and less stable as humans get older. That is when homeostasis would play a role in because the body would be more prone to catching disease. That process is called homeostatic imbalance. Homeostasis limits certain factors such as pH level, temperature, waste, and water in order to maintain a sort of balance within the body. These factors could either benefit or hamper the human
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The reason for this is because of the structure of the phospholipid bilayer that makes it easier for fat-soluble molecules to diffuse easily through the lipid bilayer without any issues. Oxygen diffuses through the blood as where carbon dioxide diffuses through the tissue cells in the blood (Human Anatomy & Physiology, 69). Facilitated diffusion is considered passive transport as the two ways substances are transported through the phospholipid bilayer are either carrier-mediated facilitated diffusion or cannel-mediated facilitated diffusion. Carrier-mediated facilitated diffusion is when the substances attach to protein carriers inside of the membrane and is then carried through the phospholipid bilayer. When the substance binds to the protein, the protein then changes shape. In channel-mediated facilitated diffusion, substances go through a channel protein which moves the substances straight through the phospholipid bilayer (Human Anatomy & Physiology, 69). Osmosis is a kind of diffusion of a solvent through a selective permeable membrane the occurs when the water concentration on both sides of the lipid bilayer are different. Aquaporins which are proteins help water move through either side of the phospholipid bilayer (Human Anatomy & Physiology, …show more content…
Discuss the structure and function of ribosomes, the endoplasmic reticulum, and the golgi apparatus, including functional interrelationships among these organelles.
The ribosomes are dark, small particles that are made up of proteins and ribosomal RNAs. Protein synthesis occurs at the ribosomes. The ribosomes have two different parts of work when it comes to protein synthesis. The first are called free ribosomes which produce soluble proteins that mainly do their work in the cytosol. The second group of ribosomes are called membrane-bound ribosomes which join the membranes and create the rough endoplasmic reticulum. The membrane bound ribosomes synthesize proteins that can be transferred out of the cell (Human Anatomy & Physiology, 84).
The endoplasmic reticulum is a widespread structure of connected tubes and membraned that encompass fluid-filled cavities called cisterns. The endoplasmic reticulum is so widespread that it makes up half of the cell’s membranes (Human Anatomy & Physiology, 84). The endoplasmic reticulum is composed up of the smooth endoplasmic reticulum and the rough endoplasmic reticulum. The rough endoplasmic contains ribosomes all over in order to perform their duty of protein synthesis. Integral proteins and phospholipids are also created at the rough endoplasmic reticulum. The smooth endoplasmic reticulum contains enzymes that have no effect on protein synthesis. The enzymes in the smooth endoplasmic reticulum metabolize lipids, synthesize hormones, absorb

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