Phys 261 human physiology - Study guides, Class notes & Summaries

PHYS 261 MIDTERM EXAM QUESTIONS AND ANSWERS 2023. The process of fibrinolysis A) activates fibrinogen. B) draws torn edges of damaged tissue closer together. C) dissolves clots. D) forms emboli. E) forms thrombi. Answer: C 25) A hematocrit is used to indicate A) only the ratio of red blood cells to the total blood volume. B) only the packed cell volume. C) only coagulation time. D) the ratio of red blood cells to the total blood volume and the packed cell volume. E) All of the answer...

PHYS 261 Mid Term Exam 2023 Complete. chemical structure of the R group. E) number of peptide bonds in the molecule. 9) Nucleic acids are polymers of units called A) nucleotides. B) fatty acids. C) bases. D) ribose. E) amino acids. 10) A component of an important buffer in the human body is A) H2O. B) NaCl. C) HCO3 -. D) HCl. E) H+. 11) The basic structural and functional unit of the human body is A) tissue. B) the cell. C) protein. D) the organ system. E) the organ. 12) Cell me...

PHYS 261 MidTerm Exam Review 2023 – Questions and Answers. Cell membranes are said to be A) actively permeable. B) impermeable. C) freely permeable. D) selectively permeable. E) none of the above 13) Most of the ATP required to power cellular operations is produced in the A) endoplasmic reticulum. B) Golgi apparatus. C) mitochondria. D) ribosomes. E) nucleus. 14) Glands that secrete hormones directly into the blood are A) endocrine glands. B) mixed glands. C) unicellular glands....

PHYS 261 FINAL EXAM QUESTIONS AND ANSWERS 2023 REVIEW - Complete. 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...

PHYS 261 MIDTERM EXAM QUESTIONS AND ANSWERS 2023

Define  Homeostasis- to cope w/external variability by keeping the internal environment relatively stable.  Energy- the capacity to do work.  Activation energy- (1) the energy required to initiate a reaction. (2) the initial input of the energy to bring reactant into a position that allow them to react.  Exergonic reactions- chemical reaction that releases energy.  Enzymes- protein catalyst that speed up reaction by lowering their activation energy.  Enzyme speci...

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