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SS_ Wk1-5.Philip
Anatomy Wk6.Assignment
| Question | Answer |
|---|---|
| What is anatomy and what is physiology? | Anatomy is the study of body structure (what the body is made of), while physiology is the study of how those structures function (how the body works) |
| What is homeostasis? | Homeostasis is the body’s ability to maintain a stable internal environment despite external changes — for example, keeping body temperature around 37°C |
| What are the main levels of organization in the body? | Chemical → Cellular → Tissue → Organ → System → Organism level |
| What are the four main elements that make up the human body? | Oxygen (O), Carbon (C), Hydrogen (H), and Nitrogen (N) — they make up about 96% of body mass |
| What are the main types of chemical bonds? | Ionic bonds (transfer of electrons), covalent bonds (sharing of electrons), and hydrogen bonds (weak attractions between molecules) |
| What are carbohydrates, and what is their main function? | Carbohydrates are organic compounds made of sugars; they serve as the body’s main source of energy |
| What is the cell membrane and its main function? | The cell membrane, or plasma membrane, is a selectively permeable barrier that controls what enters and leaves the cell |
| What is the function of mitochondria? | Mitochondria are the “powerhouses” of the cell; they produce ATP through cellular respiration |
| What happens during mitosis? | Mitosis is the process of cell division that produces two identical daughter cells for growth and repair |
| What are the four main types of tissues in the human body? | Epithelial, connective, muscle, and nervous tissue |
| Epithelial, connective, muscle, and nervous tissue | It covers body surfaces, lines cavities, and forms glands that secrete substances like hormones or mucus |
| What is the difference between skeletal, cardiac, and smooth muscle tissue? | skeletal muscle is voluntary and striated; cardiac muscle is involuntary and striated; smooth muscle is involuntary and non-striated |
| What are the main layers of the skin? | Epidermis (outer layer), dermis (middle layer), and hypodermis or subcutaneous tissue (beneath the skin) |
| What is the main function of melanin? | What is the main function of melanin? |
| Why is the skin considered part of the body’s defense system? | It forms a physical barrier against pathogens, helps regulate temperature, and prevents fluid loss |
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phillip_sison
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