WCU – PHYS 261 Final Exam | Q&A (Graded A+) | Updated 2023

PHYS 261 LECTURE FINAL For the following questions, match the level of organization with its definition below. A. a collection of similar cells that carry out similar functions B. the smallest living unit C. a collection of different tissues that carry out related functions D. groups of organs functioning in a coordinated manner 1) cell B. the smallest living unit 2) tissue A. a collection of similar cells that carry out similar functions 3) organs C. a collection of different tissues that carry out related functions 4) organ systems D. groups of organs functioning in a coordinated manner 5) Nucleic acids are polymers of units called A) ribose. B) bases. C) fatty acids. D) amino acids. E) nucleotides. 6) Cell membranes are said to be A) actively permeable. B) impermeable. C) freely permeable. D) selectively permeable. E) none of the above 7) In humans, only cells have flagella. A) sperm B) intestine lining C) stomach lining D) respiratory tract lining E) two of the above 8) The addition of a phosphate group to a substrate is called . The enzyme that catalyzes this reaction is referred to as a . A) phosphorylation; kinase B) proteolysis; kinase C) proteolysis; peptidase D) phosphorylation; phosphatase E) None of the above represents the correct terminology. 9) An allosteric modulator binds to A) the active site. B) the product. C) a region of the enzyme other than the active site. D) the surrounding tissue. E) the substrate. 10) Permeability is a property of A) solutes. B) solvents. C) ions. D) membranes. E) proteins.