Physiology - Final (Nightingale
College)445 Questions with Complete
Solutions Latest Update,,.
Positive-feedback control systems: - Answeraccelerate a change.
Of the pathogenic organisms, which of the following are the most complex?
-Viruses
-Tapeworms
-Bacteria
-Protozoa - AnswerTapeworms
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. - Answerthe body trying to maintain homeostasis
and a negative-feedback mechanism
The term that literally means self-immunity is: - Answerautoimmunity
Intracellular parasites that consist of DNA or RNA surrounded by a protein coat and
sometimes by a lipoprotein envelope are called: - Answerviruses
Pathogenesis can be defined as: - Answerthe course of disease development.
Intrinsic control: - Answeris 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 - Answertransmitter
Negative-feedback control systems: - Answeroppose a change
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. - AnswerAll the above are correct of the negative-feedback
mechanisms
The amino group in an amino acid is: - AnswerNH3+
The element that is present in all proteins but not in carbohydrates is: -
Answernitrogen
Which of the following is not one of the major groups of organic substances in the
human body?
-proteins
-salts
-lipids
-nucleic acids - Answersalts
The term glycoprotein, a combination of two words, tells you that the compound is made
of _____, with _____ being the dominant component. - Answercarbohydrate and
protein; protein
Humans can synthesize 13 of 21 basic amino acids; the remaining 8, which must be
included in the diet, are called: - Answeressential amino acids
Which energy-releasing or energy-transferring molecule does not contain a nucleotide?
- AnswerCreatine phosphate
Which level of protein structure refers to the number, kind, and sequence of amino
acids? - Answerprimary
All of the following substances are organic except:
-lipids
-electrolytes
-carbohydrates
-proteins - Answerelectrolytes
Which of the following is not true of RNA?
-it contains ribose sugar
-it contains adenine
-it is composed of smaller molecules called nucleotides
-all of the above are true of RNA - Answerall of the above are true of RNA
The types of lipids found that form hormones, such as cortisone, estrogen, and
testosterone are: - AnswerSteroids
,The type of lipoprotein associated with "bad" cholesterol and the production of
atherosclerotic changes in blood vessels is: - AnswerLDL
What is the most important factor in determining the physical and chemical properties of
fatty acids? - AnswerDegree of saturation
Peptide bonds join together molecules of: - Answeramino acids
When two molecules of glucose are joined, they form which disaccharide? -
Answermaltose
Which of the following is not true of carbohydrates?
-They include substances commonly called sugars.
-They are the body's primary source of energy.
-They are a part of both DNA and RNA.
-All of the above are true of carbohydrates. - AnswerAll of the above are true of
carbohydrates.
Which of the following statements is true?
-Amino acid chains form DNA.
-The site of transcription is within the nucleus, whereas the site of translation is in the
cytoplasm.
-Uracil is present in DNA in place of thymine.
-None of the above is true. - AnswerThe site of transcription is within the nucleus,
whereas the site of translation is in the cytoplasm.
Which is not true about the sodium and potassium pump?
-It uses cellular energy.
-Sodium moves into the cell and potassium moves out of the cell.
-A carrier system is used.
-It can move substances against their concentration gradient. - AnswerSodium moves
into the cell and potassium moves out of the cell.
Water will move through the cell membrane by: - Answerosmosis
Diffusion requires - Answera concentration gradient.
Which of the following terms is synonymous with tumor? - AnswerNeoplasm
All of the following are examples of passive transport except:
-filtration
-osmosis
-endocytosis
-dialysis - Answerendocytosis
, A DNA molecule is characterized by all of the following except:
-double helix shape
-obligatory base pairing
-ribose sugar
-phosphate group - Answerribose sugar
All of the following occur as a result of meiosis except:
-chromosome number remains at 46.
-primitive sex cells become mature gametes.
-the cells become haploid.
-meiosis occurs in two steps. - Answerchromosome number remains at 46.
Which of the following is not true of diffusion?
-Uses cellular energy
-Can occur in living and nonliving cells
-May occur both into and out of the cell
-Energy source is cellular - AnswerUses cellular energy
A saline solution that contains a higher concentration of salt than a red blood cell would
be: - Answerhypertonic
If a sequence of nitrogen bases in nucleic acid were A-U-C-G-A, which of the following
would be true about the nucleic acid?
-It contains deoxyribose sugar.
-It could be found only in the nucleus.
-It contains ribose sugar. - AnswerIt contains ribose sugar.
Twenty-three chromosomes per cell in humans is referred to as: - Answerhaploid
Which of the following is not true of RNA?
-It is a single strand.
-It contains uracil rather than thymine.
-The obligatory base pairs are adenine and uracil, and guanine and cytosine.
-It contains deoxyribose sugar. - AnswerIt contains deoxyribose sugar.
A sequence of three bases forms a(n): - Answercodon
Diffusion of particles through a membrane by means of a carrier molecule is called: -
Answerfacilitated diffusion.
Connective tissue forms from stem cell tissue called: - Answermesenchyme.
Areolar tissue usually contains which types of cells in the greatest number? -
AnswerFibroblasts
College)445 Questions with Complete
Solutions Latest Update,,.
Positive-feedback control systems: - Answeraccelerate a change.
Of the pathogenic organisms, which of the following are the most complex?
-Viruses
-Tapeworms
-Bacteria
-Protozoa - AnswerTapeworms
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. - Answerthe body trying to maintain homeostasis
and a negative-feedback mechanism
The term that literally means self-immunity is: - Answerautoimmunity
Intracellular parasites that consist of DNA or RNA surrounded by a protein coat and
sometimes by a lipoprotein envelope are called: - Answerviruses
Pathogenesis can be defined as: - Answerthe course of disease development.
Intrinsic control: - Answeris 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 - Answertransmitter
Negative-feedback control systems: - Answeroppose a change
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. - AnswerAll the above are correct of the negative-feedback
mechanisms
The amino group in an amino acid is: - AnswerNH3+
The element that is present in all proteins but not in carbohydrates is: -
Answernitrogen
Which of the following is not one of the major groups of organic substances in the
human body?
-proteins
-salts
-lipids
-nucleic acids - Answersalts
The term glycoprotein, a combination of two words, tells you that the compound is made
of _____, with _____ being the dominant component. - Answercarbohydrate and
protein; protein
Humans can synthesize 13 of 21 basic amino acids; the remaining 8, which must be
included in the diet, are called: - Answeressential amino acids
Which energy-releasing or energy-transferring molecule does not contain a nucleotide?
- AnswerCreatine phosphate
Which level of protein structure refers to the number, kind, and sequence of amino
acids? - Answerprimary
All of the following substances are organic except:
-lipids
-electrolytes
-carbohydrates
-proteins - Answerelectrolytes
Which of the following is not true of RNA?
-it contains ribose sugar
-it contains adenine
-it is composed of smaller molecules called nucleotides
-all of the above are true of RNA - Answerall of the above are true of RNA
The types of lipids found that form hormones, such as cortisone, estrogen, and
testosterone are: - AnswerSteroids
,The type of lipoprotein associated with "bad" cholesterol and the production of
atherosclerotic changes in blood vessels is: - AnswerLDL
What is the most important factor in determining the physical and chemical properties of
fatty acids? - AnswerDegree of saturation
Peptide bonds join together molecules of: - Answeramino acids
When two molecules of glucose are joined, they form which disaccharide? -
Answermaltose
Which of the following is not true of carbohydrates?
-They include substances commonly called sugars.
-They are the body's primary source of energy.
-They are a part of both DNA and RNA.
-All of the above are true of carbohydrates. - AnswerAll of the above are true of
carbohydrates.
Which of the following statements is true?
-Amino acid chains form DNA.
-The site of transcription is within the nucleus, whereas the site of translation is in the
cytoplasm.
-Uracil is present in DNA in place of thymine.
-None of the above is true. - AnswerThe site of transcription is within the nucleus,
whereas the site of translation is in the cytoplasm.
Which is not true about the sodium and potassium pump?
-It uses cellular energy.
-Sodium moves into the cell and potassium moves out of the cell.
-A carrier system is used.
-It can move substances against their concentration gradient. - AnswerSodium moves
into the cell and potassium moves out of the cell.
Water will move through the cell membrane by: - Answerosmosis
Diffusion requires - Answera concentration gradient.
Which of the following terms is synonymous with tumor? - AnswerNeoplasm
All of the following are examples of passive transport except:
-filtration
-osmosis
-endocytosis
-dialysis - Answerendocytosis
, A DNA molecule is characterized by all of the following except:
-double helix shape
-obligatory base pairing
-ribose sugar
-phosphate group - Answerribose sugar
All of the following occur as a result of meiosis except:
-chromosome number remains at 46.
-primitive sex cells become mature gametes.
-the cells become haploid.
-meiosis occurs in two steps. - Answerchromosome number remains at 46.
Which of the following is not true of diffusion?
-Uses cellular energy
-Can occur in living and nonliving cells
-May occur both into and out of the cell
-Energy source is cellular - AnswerUses cellular energy
A saline solution that contains a higher concentration of salt than a red blood cell would
be: - Answerhypertonic
If a sequence of nitrogen bases in nucleic acid were A-U-C-G-A, which of the following
would be true about the nucleic acid?
-It contains deoxyribose sugar.
-It could be found only in the nucleus.
-It contains ribose sugar. - AnswerIt contains ribose sugar.
Twenty-three chromosomes per cell in humans is referred to as: - Answerhaploid
Which of the following is not true of RNA?
-It is a single strand.
-It contains uracil rather than thymine.
-The obligatory base pairs are adenine and uracil, and guanine and cytosine.
-It contains deoxyribose sugar. - AnswerIt contains deoxyribose sugar.
A sequence of three bases forms a(n): - Answercodon
Diffusion of particles through a membrane by means of a carrier molecule is called: -
Answerfacilitated diffusion.
Connective tissue forms from stem cell tissue called: - Answermesenchyme.
Areolar tissue usually contains which types of cells in the greatest number? -
AnswerFibroblasts
