Bio 169 final exam - Study guides, Class notes & Summaries
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BIO 169 FINAL EXAM QUESTIONS AND CORRECT ANSWERS
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What causes a long absolute refractory period in cardiac muscle? What does the length of the refractory period prevent? A long absolute refractory period is due to the influx of ca+ ions, creating the plateau phase. This phase is to prevent an excessive amount of action potentials in a certain time frame. 
 
What are the four phases of the cardiac cycle and what is happening in each? 1. Ventricular filling- Blood flows through the tricuspid valve and fills the ventricles. 
2. Isovolumetric filli...
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BIO 169 Final Exam with solutions 2024 new update
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give an example of a water-soluble hormone - ANSWEROxytocin 
 
give an example of a lipid-soluble hormone - ANSWERtestosterone 
 
adenylate cyclase produces the second messenger _____, when the G-Protein has _______ and is bound to it. - ANSWERcAMP, GTP 
 
TRUE / FALSE The hypothalamus directly controls the pituitary gland? - 
ANSWERTrue 
 
The Posterior lobe is considered to be part of the (nervous or endocrine) system 
- ANSWERNervous 
 
Hypothalamus releases ________ - ANSWERTRH (...
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Bio 169 Final exam Study Guide with complete solutions
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Bio 169 Final exam Study Guide with 
complete solutions 
Erythropoietin - Answer️️ -Is secreted by the kidney 
The function of the pericardial fluid is to - Answer️️ -reduce friction between the 
pericardial membranes 
Match the type of chemical messenger with its description. - Answer️️ -Autocrine: 
stimulates the cell that originally secreted it 
Endocrine: secreted by glands and cells; acts upon distant target tissues 
Paracrine: secreted by one cell; acts upon nearby cells 
Neuro...
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BIO 169 Final Exam (compiled) Questions and Answers 100% pass
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BIO 169 Final Exam (compiled) Questions 
and Answers 100% pass 
give an example of a water-soluble hormone - Answer️️ -Oxytocin 
give an example of a lipid-soluble hormone - Answer️️ -testosterone 
adenylate cyclase produces the second messenger _____, when the G-Protein has 
_______ and is bound to it. - Answer️️ -cAMP, GTP 
TRUE / FALSE The hypothalamus directly controls the pituitary gland? - Answer️️ - 
True 
The Posterior lobe is considered to be part of the (nervous or e...
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BIO 169 Final Exam Questions and Answers | 100% Pass
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BIO 169 Final Exam Questions and 
Answers | 100% Pass 
What are the functions of the endocrine system? - Answer️️ -controls - reproduction, 
metabolism, growth/development, fluid/electrolyte balance, resistance to stress 
What are paracrine secretions? Traits? - Answer️️ -Local hormone that enters 
interstitial fluid but affects only neighboring cells. Potent and secreted in small amounts, 
only when needed. They break down quickly. 
What hormones are secreted by the anterior pituitary g...
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BIO 169 Final Exam (compiled) Questions With Correct Answers
- Exam (elaborations) • 13 pages • 2024
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BIO 169 Final Exam (compiled) Questions 
With Correct Answers 
Give an example of a water-soluble hormone - answerOxytocin 
give an example of a lipid-soluble hormone - answertestosterone 
adenylate cyclase produces the second messenger _____, when the G-Protein has _______ and is 
bound to it. - answercAMP, GTP 
TRUE / FALSE The hypothalamus directly controls the pituitary gland? - answerTrue 
The Posterior lobe is considered to be part of the (nervous or endocrine) system - 
answerNervous 
Hyp...
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BIO 169 Final Exam Questions With Correct Answers
- Exam (elaborations) • 7 pages • 2024
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BIO 169 Final Exam Questions With Correct 
Answers 
What are the functions of the endocrine system? - answercontrols - reproduction, 
metabolism, growth/development, fluid/electrolyte balance, resistance to stress 
What are paracrine secretions? Traits? - answerLocal hormone that enters interstitial fluid 
but affects only neighboring cells. Potent and secreted in small amounts, only when needed. 
They break down quickly. 
What hormones are secreted by the anterior pituitary gland? - answerACTH-...
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Bio 169- Anatomy and Physiology I: Final Exam Questions and Answers 2024
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What characteristic of life involves the removal of waste products that result from metabolic processes? - excretion 
 
What is the smallest level of structural organization in the human body? - chemical level 
 
In laboratory, you will study tissues. This area of study is known as: - histology 
 
Which organ system produces movement and generates heat? - muscular system 
 
What part of a feedback loop causes physiological responses to return the variable to the normal homeostatic range? - effec...
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Bio 169- Anatomy and Physiology I: Final Exam with Questions Solved 100% Correct
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Tetracycline is an antibiotic used to treat infections. It binds with bacterial ribosomes 
and inhibits the tRNA molecule from binding to the ribosome. What process is 
interrupted? - Answer translation 
Which of the following is a yellow-orange skin pigmet? - Answer carotene 
Thomas is deaf, but can feel the vibrations of music through sensory receptors in his 
skin called: - Answer lamellated (Pacinian) corpuscles
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BIO 169 - Final Exam Review Questions and 100% Correct Answers
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Which of these is used clinically to impede or prevent blood clotting? heparin 
All the circulating red blood cells in an adult originate in the red bone marrow 
The total volume of blood in the body of a 76-kg man is approximately ________________ liters. 5.3 
In adults, erythropoiesis exclusively takes place in red bone marrow 
A substance that activates plasminogen might be useful to cause clot dissolution to proceed faster 
Tissue factor is a factor in the ____________ pathway. extrinsic 
Th...
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