PHYSIOLOGY - FINAL NIGHTINGALE

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PHYSIOLOGY - FINAL (NIGHTINGALE

COLLEGE) WEEK 15

ACTUAL EXAM WITH CORRECT

SOLUTIONS.

Positive-feedback control systems: - correct answer- accelerate

a change.

Of the pathogenic organisms, which of the following are the most complex?-Viruses -Tapeworms -Bacteria -Protozoa - correct answer- Tapeworms

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. - correct answer- the body trying to maintain homeostasis and a negative-feedback mechanism

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The term that literally means self-immunity is: - correct answer-

autoimmunity

Intracellular parasites that consist of DNA or RNA surrounded by a protein coat and sometimes by a lipoprotein envelope are

called: - correct answer- viruses

Pathogenesis can be defined as: - correct answer- the course

of disease development.

Intrinsic control: - correct answer- is sometimes called

autoregulation.

Which of the following is not one of the basic components in a feedback control loop?-Effector mechanism -Transmitter -Sensor -Integrating center - correct answer- transmitter

Negative-feedback control systems: - correct answer- oppose a

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Negative-feedback mechanisms:

-minimize changes in blood glucose levels.-maintain homeostasis.-are responsible for an increased rate of sweating when air temperature is higher than body temperature. - correct answer- All the above are correct of the negative-feedback mechanisms

The amino group in an amino acid is: - correct answer- NH3+

The element that is present in all proteins but not in

carbohydrates is: - correct answer- nitrogen

Which of the following is not one of the major groups of organic substances in the human body?-proteins -salts -lipids -nucleic acids - correct answer- salts

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The term glycoprotein, a combination of two words, tells you that the compound is made of _____, with _____ being the dominant component. - correct answer- carbohydrate and protein; protein

Humans can synthesize 13 of 21 basic amino acids; the

remaining 8, which must be included in the diet, are called: -

correct answer- essential amino acids

Which energy-releasing or energy-transferring molecule does not contain a nucleotide? - correct answer- Creatine phosphate

Which level of protein structure refers to the number, kind, and sequence of amino acids? - correct answer- primary

All of the following substances are organic except:

-lipids -electrolytes -carbohydrates -proteins - correct answer- electrolytes

Which of the following is not true of RNA?

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