APHY 101 - Midterm Ch. 1-6 Actual Exam

APHY 101 - Midterm Ch. 1-6 / Actual Exam Questions & Correct, Certified Solutions /

Quiz____?Explain the difference between the study of Anatomy and the study of Physiology - Answer✓✓ Anatomy is the study of structure of body parts/Physiology is the study of function of body parts Quiz____?Name and define the levels of organization of life - Answer✓✓ Organelles, cells, tissues, organs, and organ systems Quiz____?Define Metabolisim - Answer✓✓ The sum of all physical and chemical events that obtain, release, and utilize energy Quiz____?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 Quiz____?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) Quiz____?Describe the structure of a serous membrane - Answer✓✓ Smooth membrane consisting of 2 layers of epithelial cells which secrete serous fluid Page 1 of 17 1 / 3

Quiz____?What are signs of aging at the cellular level? - Answer✓✓ Impaired cell division and the ability to break down and recycle worn cell parts Quiz____?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.Quiz____?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 Quiz____?Atom - Answer✓✓ The smallest unit of matter that defines the chemical elements Quiz____?Element - Answer✓✓ Fundamental substances in which all matter is composed of Quiz____?Molecule - Answer✓✓

• or more atoms may combine to form a molecule

Quiz____?Compound - Answer✓✓ A substance made from two or more elements chemically combined Quiz____?Name the bulk elements of the body - Answer✓✓ Carbon, Hydrogen, Oxygen, Nitrogen, Sulfur, and Phosphorus Page 2 of 17 2 / 3

Quiz____?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 in each of an element's atoms Quiz____?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 Quiz____?Isotope - Answer✓✓ An isotope is an atom that have the same atomic numbers but different atomic weights Quiz____?

Distinguish between types of chemical reactions: Synthesis, Decomposition,

Exchange, and Reversible - Answer✓✓ Quiz____?Electrolyte - Answer✓✓ An electrolyte is a substance that produces an electrically conducting solution when dissolved in water.Quiz____?Acid - Answer✓✓ Acids are electrolytes that dissociate the release hydrogen ions in water Quiz____?Base - Answer✓✓ A compound that produces hydroxide ions when dissolved in water Quiz____?Page 3 of 17

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