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Kerrigan Spiteri
week 7 pysiology
| Question | Answer |
|---|---|
| Define membrane potential. | refers to the voltage difference across a cell membrane due to the distribution of ions. |
| Define the term articulation. | refers to the clear and precise pronunciation of words and the distinct formation of sounds in speech. |
| Discuss the three characteristics of skeletal muscle cells that allow them to function as they do. | are characterized by their striated appearance, which allows for organized contraction; multinucleation, providing increased protein synthesis for growth and repair; and ability to contract voluntarily, enabling precise control over movement. |
| Describe the function of bone marrow. | produces blood cells (red blood cells, white blood cells, and platelets) and stores nutrients, playing a crucial role in both hematopoiesis and immune function. |
| List the four major types of tissue in the body. | The four major types of tissue in the body are epithelial tissue, connective tissue, muscle tissue, and nervous tissue. |
| Discover how injuries affect the tissue of the body. | Injuries can damage tissues, leading to inflammation, impaired function, and potential scarring as the body initiates repair processes to restore integrity and function. |
| Relate how connective tissue establishes the framework of the body. | establishes the framework of the body by providing structural support, connecting different tissues and organs, and facilitating the transport of nutrients and waste through its diverse types, such as bone, cartilage, and blood. |
| Discuss the four distinct phases of mitosis. | prophase, metaphase, anaphase, telophase |
| Describe the role of enzymes in cell metabolism and explain how an enzyme’s shape relates to its function. | Enzymes act as catalysts in cell metabolism, speeding up chemical reactions by lowering activation energy, and their specific shape allows them to bind substrates precisely at the active site, ensuring efficient and selective reaction processes. |
| Discuss the function of carbohydrates. | Carbohydrates serve as a primary source of energy for the body, provide structural support in cells, and play essential roles in cell recognition and signaling. |
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