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Week 1-6
SCI221 Assignment
| Term | Definition |
|---|---|
| Homeostasis | The process by which living organisms maintain a stable internal environment despite changes in external conditions. |
| 3 levels of homeostatic control | Intrinsic Control (Autoregulation), Neural Control, and Hormonal Control |
| Major Group of Organic Substances in the body | Carbohydrates, Proteins, Lipids, and Nucleic Acids |
| Function of Carbohydrates | Energy Source, Energy Storage, Structural Role, Cell Recognition, Sparing Protein, and Digestive Health. |
| Osmosis | The passive movement of water molecules across a selectively permeable membrane from an area of lower solute concentration to an area of higher solute concentration. |
| Active Cell Transport Mechanisms | Involves the movement of substances across a cell membrane against their concentration gradient, requiring energy, usually in the form of ATP. |
| Enzymes | Biological catalysts that speed up chemical reactions in living organisms without being consumed in the process. |
| Cellular Respiration | The metabolic process by which cells convert nutrients, particularly glucose, into energy (ATP) in the presence of oxygen. |
| 4 Distinct Phases of Mitosis | Prophase, Metaphase, Anaphase, and Telophase. |
| Prophase | The first stage of mitosis, marking the beginning of cell division. Here are the key characteristics and events that occur during prophase: |
| Metaphase | The second stage of mitosis, characterized by the alignment of chromosomes in preparation for separation. |
| Anaphase | The third stage of mitosis, marked by the separation of sister chromatids and their movement toward opposite poles of the cell. |
| Telophase | The third stage of mitosis, marked by the separation of sister chromatids and their movement toward opposite poles of the cell. |
| Meiosis | A specialized form of cell division that reduces the chromosome number by half, resulting in the production of gametes (sperm and eggs in animals). |
| 4 Major Types of Tissue in the body | Epithelial Tissue, Connective Tissue, Muscle Tissue, and Nervous Tissue |
| Epithelial Tissue | A fundamental type of tissue that lines surfaces, both inside and outside the body. |
| Connective Tissue | One of the four main types of tissue in the body, serving a variety of critical roles. |
| Muscle Tissue | Specialized for contraction and is responsible for movement in the body. |
| Nervous Tissue | Specialized for the transmission of signals throughout the body, playing a crucial role in the nervous system. |
| Epithelia | Layers of cells that cover surfaces and line cavities in the body. |
| Bone Marrow | A vital tissue found within the cavities of bones. It plays a crucial role in the body’s hematopoiesis (the production of blood cells) and is involved in the immune response. |
| 5 Homeostatic Functions of bones | Mineral Storage, Blood Cell Production, Acid-Base Balance, Support and Structure, and Fat Storage. |
| Cribriform Plate | A thin, sieve-like structure located in the ethmoid bone, forming part of the roof of the nasal cavity. |
| Articulation | The connection between two or more bones in the body, commonly known as a joint. |
Created by:
taylorcsaelee
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