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physiology stadstac1
| Question | Answer |
|---|---|
| Define Physiology | is the organic process or functions of organisms and their parts including physical and chemical processes. |
| Define Homeostasis | refers to stability, balance, or equilibrium within a cell or the body or It is an organism’s ability to keep a constant internal environment. |
| how does homeostatic balanced maintained in the body? | its maintained through sensors, brain (control centers) and effectors that make changes.For example Sweating cool the body,insulin control blood sugar,and kidney balance water. |
| Define biomolecule and mention the major groups of organic substances | Biomolecule is a chemical molecule found in living organism and are very essential for the life.The major organic substances are cabohydrates,proteins,lipids(fat) and nucleic acids(DNA&RNA), |
| The functions of the major group of organic substances are | Provide energy eg.Glucose,Build body structures e.gCollagen in the skin,Store genetic information(DNA),Regulate body processes(enzymes,hormones) |
| Compare the structure of DNA and RNA | DNA is double stranded with deoxyribose sugar and bases A,T,C,G, It store genetic informations while RNA is a single stranded with ribose sugar and bases A,U,C,G,it helps in making proteins. Example of DNA is chromosome and RNA is mRNA, tRNA, and rRNA |
| Discuss how genes control protein synthesis and determine hereditary characteristics. | Genes protect production of proteins, and proteins identify an organism’s traits, passing them to the next generation. |
| List the four major types of tissue in the body and explain the main role of each tissue | Epithelial tissue which cover,protects the body surface,connective tissue which supports,connects and protects organs and the body,Muscle tissue which allow movement of the body and organ,Nervous Tissue which send and receive message to control the body. |
| Describe the function of bone marrow | The bone marrow makes blood cells like white blood cells which carry oxygen and red cells which fights the infections in a body, Store fats in a yellow bone marrow which is for energy store. |
| List and discuss the three generalized functions of skeletal muscle tissue | Movement which help the body to move from one point to another,Posture and stability which help to keep the body stable,Heat production which help the body to produce heat which help to keep the body warm |
Created by:
Mimimama3
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