FREE AND STUDY GAMES ABOUT WEEK 1 PHYSIOLOGY

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FREE AND STUDY GAMES ABOUT WEEK 1 PHYSIOLOGY

EXAM QUESTIONS

Actual Qs and Ans Expert-Verified Explanation

This Exam contains:

-Guarantee passing score -38 Questions and Answers -format set of multiple-choice -Expert-Verified Explanation Question 1: Which of the following is a protein substance with no DNA or RNA and is thought to be the cause of mad cow disease??Virus Bateria Prion Protozoan

Answer:

Prion Question 2: Positive feedback control systems: Have no effect on the deviation from set point Accelerate a change Ignore a change Do not exist in human systems

Answer:

Accelerate a change

Question 3: Negative feedback loops

Oppose a change Accelerate a change Have no effect of the deviation from set point Establish a new set point

Answer:

Oppose a change Question 4: oxytocin during childbirth operated as a negative - feedback loop, what effect will it have on uterine contractions??Oxytocin would stimulate stronger contractions no changes in the strength Uterine contractions would be weak, then gain strength

Answer:

Oxytocin would inhibit uterine contractions* Question 5: Events that lead to an immune response to an infection or the formation of a blood clot are examples of Positive feedback Negative feedback Inhabatory feedback Intracellular feedback

Answer:

Negative feedback* Question 6: What term describes a signal traveling toward a particular centre or point of reference?Efferent Sensory Effector Afferent

Answer:

Afferent

Question 7: Homeostasis can best be describes as:?A constant state maintained by living and nonliving organisms A state of relative consistency Adaptation to the external environment Changes in body temperature

Answer:

A state of relative consistency

Question 8: Extrinsic control usually involves what mode of regulation

Nervous Endocrine Integrations Both A & B

Answer:

Both A & B* Question 9: Which of the following is not one of the basic components in a feedback control loop?Effector mechanism Transmitter Sensor Integrating center

Answer:

Transmitter Question 10: Which level of control operates at the cell level, often using genes and enzymes to regulate cell function Intrinsic regulaiton Extrinsic regulaiton Extracellular regulation Intracellular regulation

Answer:

Intracellular regulation

Question 11: Of the pathogenic organisms which of the following are the most complex?Viruses Tapeworms Bateria Protozoa

Answer:

Tapeworms Question 12: The term that literally means self - immunity is: Autoimmunity Homoimmunity Passive immunity Active immunity

Answer:

Autoimmunity* Question 13: Shivering to try to raise your body temperature back to normal would be an

example of:

The body trying to maintain homeostasis A positive feedback mechanism A negative feedback mechanism Both A & C

Answer:

Both A & C

Question 14: Intrinsic control

Usually involves the endocrine or nervous system Operates at the cellular level Is sometimes called auto regulation Operates at the system or organism level

Answer:

Is sometimes called auto regulation*