SESSION2 Final Notes

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School

University of British Columbia *

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Course

350

Subject

Biology

Date

May 17, 2024

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docx

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4

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Session 2 (Chemistry of Life and Organ System) Organ System   Integumentary System Skin Protection Vitamin D Maintain Homeostasis Contains sensory receptors Helps maintain temperature   Skeletal Systems Provides attachment for muscles Hematopoiesis Stores calcium   Muscular System Skeletal Muscle - voluntary, cardiac Muscle - striations and involuntarily, Smooth Muscles - visceral non-striated and involuntary Movement Heat Production Storage of Carbohydrates Skeletal, Cardiac, Smooth Muscles   Nervous System Control of body functions using nerve impulses/action potentials/depolarization   Endocrine System (Study the location of the organs) Control of body functions using hormones Most use negative feedback   Cardiovascular Transport of oxygen and carbon dioxide Transport of nutrients Transport of waste   Lymphatic System Fluid Balance Immunity with biological filtration   Respiratory System Oxygen and carbon dioxide Mechanisms to help control pH   Digestive System Break down foods Absorbs nutrients Eliminates waste   Urinary System Fluid and electrolyte balance Elimination of waste Mechanisms to help maintain pH   Male reproductive System (produce testosterone - interstitial cells) Procreation Hormones for developmental and maintenance of male and female characteristics   Female Reproductive System More complex than male reproductive system    Quiz#2 1. Subatomic particles - proton, neutron, electron 2. Concerning about acid - less than pH 7 3. A solution with a pH of 5 - is an acid and more OH- than a solution with a pH of 4 4. Example of disaccharide - sucrose 5. Primary function of cardiovascular system - transport 6. Formula for oxygen gas is O2, this means it is: a Molecule 7. Ionic bonds - produce ions when dissolved in water 8. Water - most abundant inorganic compound in the body, found both in and around cells of the body 9. Liver cells and muscle cells are able to store chains of glucose in a molecule called: glycogen 10. Organic Compounds: fats (lipids), RNA, polysaccharides (Carbohydrates) 11. Organs help maintain the proper pH of body fluids: kidneys by reabsorbing or secreting H+ and OH- and lungs adjusting to CO2 12. Part of the digestive system … 13. Voluntary movement occurs when: skeletal muscle contracts 14. Nervous system performs the same general function as the: Endocrine System 15. Tiny, wall-sacs in the lungs are called: Alveoli 16. Urine flows through the organs of the urinary systems in sequence of: Kidney, ureter, bladder, urethra 17. The electrons are found in orbitals around nucleus: TRUE 18. Elements are pure substances: TRUE
19. Acids produce an excess of H+ ions: TRUE 20. A tissue is a group of different types of organs that function together to perform a specific function: FALSE 21. The skeletal system assists in the formation of blood cells: TRUE 22. Gallbladder is an accessory organ of the digestive system: TRUE 23. Iron and calcium are both important minerals stored in bone: FALSE 24. Lymph is formed from the spleen: False 25. Sperm and ova are similar in that they both are sex cells: True   Matching Match the following definitions with the appropriate word E 1 . A substance composed of more than one type of element A. Proton B. Neutron C. Atomic mass D. Atomic number E. Compound F. Covalent bond G. Buffer H. Electrolytes H 2 . When an ionic compound dissociates in water it forms these A 3 . A subatomic particle with a positive charge G 4 . A substance that resists a change in pH C 5 . The sum of the protons and neutrons in an atom D 6 . The number of protons in an atom B 7 . A subatomic particle with no charge F 8 . A bond formed when electrons are shared Multiple Choice Select the best answer from the choices provided 1. High levels of radiation can cause a. normal cells to multiply rapidly b. the destruction of normal cells only c. destruction of cancer cells only d. none of the above 2. Which of the following is a structured lipid found in cell membranes? a. peptide b. prostaglandin c. enzymes d. phospholipid 3. Name for atoms of the same element but with different atomic weights. a. isotopes b. base pairs c. hormones d. none of the above 4. Which of the following organs is classified as an accessory organ of the digestive system? a. mouth b. esophagus c. tongue d. anal canal 5. Factors in the environment such as heat, light, pressure, and temperature that can be recognized by the nervous system are called a. effectors b. stimuli c. receptors d. nerve impulses 6. What is undigested material in the gastrointestinal tract called? a. feces b. urine c. lymph d. blood 7. Which body system produces heat and maintains body posture? a. endocrine b. muscular c. circulatory d. skeletal 8. Which of the following is not a function of the integumentary system?
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