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Ira Aguilera
Study Stack Set 1
| Term | Definition |
|---|---|
| Definition of Homeostasis | Refers to the maintenance of relatively constant internal conditions in the human body despite changes in the external or internal environment. This stability is essential for the survival and proper functioning of cells. |
| Negative Feedback Loops | Negative feedback loops are inhibitory mechanisms that oppose changes in the internal environment, helping to restore stability. |
| Positive Feedback Loops | Positive feedback loops are stimulatory mechanisms that amplify changes rather than opposing them. These loops are less common and typically occur in processes that need to be completed quickly |
| Examples of Negative Feedback Loops | Body temperature regulation, Blood glucose regulation and Oxygen and Carbon Dioxide Regulation |
| Examples of Positive Feedback Loops | Childbirth, Blood clotting and Immune response |
| The four major groups of organic substances are: | Carbohydrates, Lipids, Proteins and Nucleic Acids |
| Comparison of DNA and RNA | DNA: Double-stranded molecule with deoxyribose sugar and bases adenine (A), thymine (T), cytosine (C), and guanine (G) RNA: Single-stranded molecule with ribose sugar and bases adenine (A), uracil (U), cytosine (C), and guanine (G) |
| ATP and Energy Release | ATP releases energy through the hydrolysis of its high-energy phosphate bonds: Reaction: ATP → ADP + Pi + Energy ATP provides energy for cellular processes like muscle contraction, active transport, and chemical synthesis. |
| Cellular Respiration | Cellular respiration is the process by which cells convert glucose into ATP, the energy currency of the cell. |
| Importance of Cellular Respiration | Cellular respiration provides the energy required for cellular functions, including growth, repair, and reproduction. |