Living things need water in their cells. Water is the universal solvent - most of the chemicals a cell needs is dissolved and transported in water. Water is an environment where chemical reactions can occur and water is needed in many of those reactions - like the hydrolysis reaction (needed in the break down of food molecules). If a cell becomes dehydrated chemical reactions slow down. Chemical balance of the cell is changed as waste materials are not removed fast enough, food is not broken down, etc. Water also helps regulate the heat that can build up in a cell during chemical reactions. A dehydrated cell = increase in cell temp. Water content of a cell also affects the pH of a cell environment. Certain reactions occur better at certain pH. Homeostasis is maintaining a balance with the the environment. Without water the balance is upset.
Answer:
A. PAR-Q
Explanation:
"PAR-Q" stands for<em> "Physical Activity Readiness Questionnaire." </em>This questionnaire is used in order to assess whether a person is ready to take part in a physical activity. This is often used when <em>a person decides to work out under a fitness coach.</em> This shows the potential risk of a person for heart attack and other illnesses when it comes to working out, especially with intense ones. If a person answers at least one "YES" to any of the questions, it is advisable to talk to his doctor first. For<em> administrative reasons</em>, the questionnaire is <u>signed by the participant and a witness </u><u>(assessor) </u>and is dated. If the participant is a minor,<em> it is signed by a parent.</em>
Answer:
The answer is cardiovascular disease
Explanation:
Depending on how long the person remains inactive and how many pounds do they put on will determine the risk of developing the disease. Not exercising and gaining weight has been shown to lead to cardiovascular disease and later to heart problems. But that is not that alarming for people who are around their normal weight.
Answer:
Explanation:
Over time, excessive alcohol use can lead to the development of chronic diseases and other serious problems including: High blood pressure, heart disease, stroke, liver disease, and digestive problems. Cancer of the breast, mouth, throat, esophagus, voice box, liver, colon, and rectum.
Answer:
Myasthenia gravis is considered to be an autoimmune disorder. In an autoimmune disease, your immune system mistakes a part of your own body as foreign, resulting in its destruction. In the case of myasthenia gravis, your immune system targets the acetylcholine receptors that your muscles need in order to contract.
Explanation:
