Question 1

Intrinsic control:
  usually involves the endocrine or nervous system. 
  operates at the cellular level. 
  is sometimes called autoregulation.
  operates at the system or organism level.

Accepted Answer

is sometimes called autoregulation.

Question 2

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. 
  All of the above are correct.

Accepted Answer

All of the above are correct.

Question 3

Epidemiology is the study of the _____ of diseases in human populations.
  occurrence 
  distribution 
  transmission 
  All of the above are correct.

Accepted Answer

All of the above are correct.

Question 4

Of the 11 major body systems, which is the least involved in maintaining homeostasis?
  Circulatory 
  Endocrine 
  Lymphatic 
  Reproductive

Accepted Answer

Reproductive

Question 5

Homeostasis can best be described as:
  a constant state maintained by living and nonliving organisms. 
  a state of relative constancy. 
  adaptation to the external environment. 
  changes in body temperature.

Accepted Answer

a state of relative constancy.

Question 6

Which lipid acts as a “tissue hormone”?
  Triglyceride 
  Prostaglandin 
  Steroid 
  Phospholipid

Accepted Answer

Prostaglandin

Question 7

When two molecules of glucose are joined, they form which disaccharide?
  Sucrose 
  Maltose 
  Lactose 
  Fructose

Accepted Answer

Maltose

Question 8

The basic building blocks of fats are:
  monosaccharides. 
  disaccharides. 
  amino acids. 
  fatty acids and glycerol.

Accepted Answer

fatty acids and glycerol.

Question 9

A structural lipid found in the cell membrane is a:
  triglyceride. 
  phospholipid. 
  steroid. 
  Both B and C are correct.

Accepted Answer

Both B and C are correct.

Question 10

What is the most important factor in determining the physical and chemical properties of fatty acids?
  Degree of saturation 
  Presence of glycerol 
  Available bonds of hydrocarbons 
  Polarity

Accepted Answer

Degree of saturation

Question 11

Humans can synthesize 13 of 21 basic amino acids; the remaining 8, which must be included in the diet, are called:
  enzymes. 
  essential amino acids. 
  structural proteins. 
  peptide bonds.

Accepted Answer

essential amino acids.

Question 12

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.

Accepted Answer

It contains deoxyribose sugar.

Question 13

A sequence of three bases forms a(n):
  codon. 
  anticodon. 
  amino acid. 
  polypeptide bond.

Accepted Answer

codon

Question 14

A DNA molecule is characterized by all of the following except:
  double helix shape. 
  obligatory base pairing. 
  ribose sugar. 
  phosphate groups.

Accepted Answer

ribose sugar.

Question 15

Twenty-three chromosomes per cell in humans is referred to as:
  haploid. 
  diploid. 
  myoid. 
  dioid.

Accepted Answer

haploid

Question 16

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.

Accepted Answer

Sodium moves into the cell and potassium moves out of the cell.

Katherine Mendoza

Human Anatomy

Question	Answer
Intrinsic control: usually involves the endocrine or nervous system. operates at the cellular level. is sometimes called autoregulation. operates at the system or organism level.	is sometimes called autoregulation.
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. All of the above are correct.	All of the above are correct.
Epidemiology is the study of the _____ of diseases in human populations. occurrence distribution transmission All of the above are correct.	All of the above are correct.
Of the 11 major body systems, which is the least involved in maintaining homeostasis? Circulatory Endocrine Lymphatic Reproductive	Reproductive
Homeostasis can best be described as: a constant state maintained by living and nonliving organisms. a state of relative constancy. adaptation to the external environment. changes in body temperature.	a state of relative constancy.
Which lipid acts as a “tissue hormone”? Triglyceride Prostaglandin Steroid Phospholipid	Prostaglandin
When two molecules of glucose are joined, they form which disaccharide? Sucrose Maltose Lactose Fructose	Maltose
The basic building blocks of fats are: monosaccharides. disaccharides. amino acids. fatty acids and glycerol.	fatty acids and glycerol.
A structural lipid found in the cell membrane is a: triglyceride. phospholipid. steroid. Both B and C are correct.	Both B and C are correct.
What is the most important factor in determining the physical and chemical properties of fatty acids? Degree of saturation Presence of glycerol Available bonds of hydrocarbons Polarity	Degree of saturation
Humans can synthesize 13 of 21 basic amino acids; the remaining 8, which must be included in the diet, are called: enzymes. essential amino acids. structural proteins. peptide bonds.	essential amino acids.
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.	It contains deoxyribose sugar.
A sequence of three bases forms a(n): codon. anticodon. amino acid. polypeptide bond.	codon
A DNA molecule is characterized by all of the following except: double helix shape. obligatory base pairing. ribose sugar. phosphate groups.	ribose sugar.
Twenty-three chromosomes per cell in humans is referred to as: haploid. diploid. myoid. dioid.	haploid
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.	Sodium moves into the cell and potassium moves out of the cell.

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