APHY 101 - Midterm Ch. 1-6 Exam
Questions With Correct Answers
Explain the difference between the study of Anatomy and the study of Physiology -
answerAnatomy is the study of structure of body parts/Physiology is the study of function of
body parts
Name and define the levels of organization of...
EXAM STUDY MATERIALS July 26, 2024 9:30 AM APHY 101 - Midterm Ch. 1 -6 Exam Questions With Correct Answers Explain the difference between the study of Anatomy and the study of P hysiology - answer✔✔Anatomy is the study of structure of body parts/Physiology is the study of function of body parts Name and define the levels of organization of life - answer✔✔Organelles, cells, tissues, organs, and organ systems Define Metabolisim - answer✔✔The sum of all physical and chemical events that obtain, release, and utilize energy Define Homeostasis. How does a homeostatic mechanism maintain homeostasis? - answer✔✔The body's maintenance of a stable internal environment. Depend on normal concentrations of water, nutrients, and oxygen, and normal body temperature and pressure What is meant by negative feedback? How does negative feedback affect homeostatic mechanisms? - answer✔✔Works to correct a deviation from a set point (Tries to get back to the set point/normal) Describe the structure of a serous membrane - answer✔✔Smooth membrane consisting of 2 layers of epithelial cells which secrete serous fluid What are signs of aging at the cellular level? - answer✔✔Impaired cell d ivision and the ability to break down and recycle worn cell parts What is meant by anatomical position? - answer✔✔Universal body position: Standing erect, facing forward, upper limbs at the sides, palms facing forward and thumbs out. Explain why chemistry is an important part of the study of Physiology - answer✔✔Body functions depend on cellular functions that, in turn, result from chemical changes Atom - answer✔✔The smallest unit of matter that defines the chemical elements Element - answer✔✔Fundamental su bstances in which all matter is composed of Molecule - answer✔✔2 or more atoms may combine to form a molecule Compound - answer✔✔A substance made from two or more elements chemically combined EXAM STUDY MATERIALS July 26, 2024 9:30 AM Name the bulk elements of the body - answer✔✔Carbon, Hydrogen, O xygen, Nitrogen, Sulfur, and Phosphorus What do atomic number and atomic weight of an atom represent? - answer✔✔Atomic Number is the number of protons in the atoms of a particular element/Atomic Weight is the number of protons plus the number of neutrons i n each of an element's atoms Define Ion. How do we indicate in a molecular formula if an atom is an ion? - answer✔✔Ions are atoms that gain or lose electrons and become electrically charged Isotope - answer✔✔An isotope is an atom that have the same atomic numbers but different atomic weights Distinguish between types of chemical reactions: Synthesis, Decomposition, Exchange, and Reversible - answer✔✔ Electrolyte - answer✔✔An electrolyte is a substance that produces an electrically conducting solution when d issolved in water. Acid - answer✔✔Acids are electrolytes that dissociate the release hydrogen ions in water Base - answer✔✔A compound that produces hydroxide ions when dissolved in water Neutral compound - answer✔✔Occurs when ions of opposite charges attra ct one another to form electrically neutral compounds. How are acid and bases represented on the pH scale? - answer✔✔Any pH number greater than 7 is considered a base and any pH number less than 7 is considered an acid. 0 is the strongest acid and 14 is th e strongest base. How do hydrogen ion concentrations change as the numbers change? - answer✔✔As the hydrogen concentration increases, the pH decreases What is Acidosis? Alkalosis? - answer✔✔Acidosis = pH less than 7.35 Alkalosis =pH rise in the blood What distinguishes an organic compound from an inorganic compound? - answer✔✔Organic compounds result from the activity of living beings, whereas inorganic compounds are either the result of natural processes unrelated to any life form or the result of human ex perimentation in the laboratory Give examples and characteristics of the 4 types of Organic Molecules - answer✔✔1) Carbohydrate: Immediate source of energy for organisms. Ex: Monosaccaharides, simple sugars.
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