Question 1

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 and C

Accepted Answer

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

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.

Accepted Answer

accelerate a change.

Question 3

The contraction of the uterus during the birth of a baby is an example of _____ feedback.
negative 
positive 
  inhibitory 
  deviating

Accepted Answer

positive

Question 4

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 5

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

Accepted Answer

phospholipid. 
steroid.

Question 6

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

Accepted Answer

carbohydrate and protein; protein

Question 7

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.

Accepted Answer

They include substances commonly called sugars. 
  They are the body’s primary source of energy. 
They are a part of both DNA and RNA.

Question 8

Unsaturated fats:
contain all the hydrogen atoms they can hold. 
  contain only single bonds between carbon atoms. 
  are usually solids at room temperature. 
will kink or bend because of the double bonds between the carbon atoms.

Accepted Answer

will kink or bend because of the double bonds between the carbon atoms.

Question 9

If one side of a DNA molecule is CTAGGCTG, the other side would be:
CTAGGCTG. 
 GATCCGAC. 
CUAGGCUG. 
  GAUCCGAC.

Accepted Answer

GATCCGAC.

Question 10

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

Accepted Answer

fatty acids and glycerol.

Question 11

Which of the following is not true of both triglycerides and phospholipids?
  They both contain glycerol. 
  They both contain fatty acids. 
They both contain a hydrophobic and hydrophilic end. 
 All of the above are true of both triglycerides and pho

Accepted Answer

They both contain glycerol. 
  They both contain fatty acids. 
They both contain a hydrophobic and hydrophilic end.

Question 12

The types of lipids found that form hormones, such as cortisone, estrogen, and testosterone are:
  triglycerides. 
  phosphoglycerides. 
 steroids. 
prostaglandins.

Accepted Answer

steroids.

Question 13

The type of lipoprotein associated with “bad” cholesterol and the production of atherosclerotic changes in blood vessels is:
HDL. 
LDL. 
  VHDL. 
  none of the above.

Accepted Answer

LDL

Question 14

Peptide bonds join together molecules of:
 glycerol. 
  glucose. 
amino acids. 
water.

Accepted Answer

Water

Question 15

Which is true about the sodium and potassium pump?
  Two sodium ions are taken into the cell. 
Three sodium ions are taken out of the cell. 
  Three potassium ions are taken into the cell. 
  Two potassium ions are taken out of the cell.

Accepted Answer

Three sodium ions are taken out of the cell.

Question 16

NaCl would move through the cell membrane in which direction?
 Both into and out of the cell 
  Into the cell 
Out of the cell 
  Neither into nor out of the cell

Accepted Answer

Both into and out of the cell

Question 17

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. 
The site of transcription

Accepted Answer

The site of transcription is within the nucleus, whereas the site of translation is in the cytoplasm.

Question 18

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

Accepted Answer

Uses cellular energy

Question 19

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

Question 20

Sodium moves into the cell and potassium moves out of the cell
 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 21

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.

Accepted Answer

chromosome number remains at 46.

Question 22

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 23

Which of the following is not a characteristic of skeletal muscles?
 Having one nucleus per cell 
  Being attached to bone
Having striations 
  Having voluntary or “willed” muscles

Accepted Answer

Having one nucleus per cell

Question 24

Which of the following is not a characteristic of connective tissue?
Typically holds its cells together tightly by means of desmosomes 
  Protects the body from foreign invaders 
Supports the body 
  Transports substances throughout the body

Accepted Answer

Typically holds its cells together tightly by means of desmosomes

Question 25

Which of the following is not a characteristic of smooth muscles?
  Having one nucleus per cell 
Having intercalated disks 
  Composing the walls of the viscera 
Usually not being under voluntary control

Accepted Answer

Having intercalated disks

Question 26

Which type of tissue has the greatest capacity to regenerate?
Muscle 
  Nervous 
Epithelial 
  All of the above tissue have about equal ability to regenerate.

Accepted Answer

Epithelial

Question 27

Basement membrane is composed of molecules made by _____ tissue.
  muscle 
  connective 
epithelial 
Both B and C are correct.

Accepted Answer

connective 
 epithelial

Question 28

A tissue is:
  a membrane that lines body cavities. 
a group of similar cells that perform a common function. 
  a thin sheet of cells embedded in a matrix. 
the most complex organizational unit of the body.

Accepted Answer

a group of similar cells that perform a common function.

Question 29

The hypodermis:
connects the dermis to underlying tissues. 
  is the layer of skin in which hair is produced. 
connects the dermis and the epidermis. 
  is the layer of skin in which the nails are produced.

Accepted Answer

connects the dermis to underlying tissues.

Question 30

Which of the following is not a function of adipose tissue?
  Insulates to conserve body heat 
Defends the body from microbes and injurious substances 
Supports and protects the kidneys 
  Stores excess food

Accepted Answer

Defends the body from microbes and injurious substances

Question 31

Which of the following is not a characteristic of epithelial tissue?
  Forms glands that secrete substances into and out of the body 
 Is important in communication and control 
  Covers and protects body surfaces 
Lines the interior of body cavities

Accepted Answer

Is important in communication and control

Question 32

Which cells electrically insulate axons to increase the speed of conduction?
  Oligodendrocytes 
Schwann cells 
  Astrocytes 
Both A and B

Accepted Answer

Oligodendrocytes 
Schwann cells

Question 33

The human hand has greater dexterity than the forepaw of any animal because of the freely movable joint of the:
elbow. 
  shoulder. 
  wrist. 
thumb.

Accepted Answer

thumb.

Question 34

In the epiphyseal plate, the zone of hypertrophy is in the _____ layer.
  first 
second 
third 
  fourth

Accepted Answer

third

Question 35

In intramembranous ossification, the process of appositional growth refers to the:
  development of a core layer of spongy bone. 
 development of compact bone in long 
bones. 
 addition of an outside layer of osseous tissue on flat bones. 
  lengthen

Accepted Answer

addition of an outside layer of osseous tissue on flat bones.

Question 36

The cell organelles that synthesize organic matrix substances in bone formation are:
mitochondria and Golgi apparatus. 
  ribosomes and Golgi apparatus. 
endoplasmic reticulum and ribosomes. 
endoplasmic reticulum and Golgi apparatus.

Accepted Answer

endoplasmic reticulum and Golgi apparatus.

Question 37

In bone growth, the medullary cavity is enlarged because of the activity of:
osteoclasts. 
  osteocytes.
osteoblasts. 
  chondrocytes.

Accepted Answer

osteoclasts.

Question 38

Which of the following is not a characteristic of the epiphyses?
  Made of spongy bone 
 Cylindrical in shape 
  Contain red bone marrow 
All of the above are characteristics of the epiphyses.

Accepted Answer

Cylindrical in shape

Question	Answer
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 and C	the body trying to maintain homeostasis. a negative-feedback mechanism.
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.	accelerate a change.
The contraction of the uterus during the birth of a baby is an example of _____ feedback. negative positive inhibitory deviating	positive
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.
A structural lipid found in the cell membrane is a: triglyceride. phospholipid. steroid. Both B and C are correct.	phospholipid. steroid.
The term glycoprotein, a combination of two words, tells you that the compound is made of _____, with _____ being the dominant component. a lipid and a protein; the lipid carbohydrate and protein; carbohydrate a lipid and a protein; the protein	carbohydrate and protein; protein
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.	They include substances commonly called sugars. They are the body’s primary source of energy. They are a part of both DNA and RNA.
Unsaturated fats: contain all the hydrogen atoms they can hold. contain only single bonds between carbon atoms. are usually solids at room temperature. will kink or bend because of the double bonds between the carbon atoms.	will kink or bend because of the double bonds between the carbon atoms.
If one side of a DNA molecule is CTAGGCTG, the other side would be: CTAGGCTG. GATCCGAC. CUAGGCUG. GAUCCGAC.	GATCCGAC.
The basic building blocks of fats are: monosaccharides. disaccharides. amino acids. fatty acids and glycerol.	fatty acids and glycerol.
Which of the following is not true of both triglycerides and phospholipids? They both contain glycerol. They both contain fatty acids. They both contain a hydrophobic and hydrophilic end. All of the above are true of both triglycerides and pho	They both contain glycerol. They both contain fatty acids. They both contain a hydrophobic and hydrophilic end.
The types of lipids found that form hormones, such as cortisone, estrogen, and testosterone are: triglycerides. phosphoglycerides. steroids. prostaglandins.	steroids.
The type of lipoprotein associated with “bad” cholesterol and the production of atherosclerotic changes in blood vessels is: HDL. LDL. VHDL. none of the above.	LDL
Peptide bonds join together molecules of: glycerol. glucose. amino acids. water.	Water
Which is true about the sodium and potassium pump? Two sodium ions are taken into the cell. Three sodium ions are taken out of the cell. Three potassium ions are taken into the cell. Two potassium ions are taken out of the cell.	Three sodium ions are taken out of the cell.
NaCl would move through the cell membrane in which direction? Both into and out of the cell Into the cell Out of the cell Neither into nor out of the cell	Both into and out of the cell
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. The site of transcription	The site of transcription is within the nucleus, whereas the site of translation is in the cytoplasm.
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	Uses cellular energy
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
Sodium moves into the cell and potassium moves out of the cell 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.
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.	chromosome number remains at 46.
A DNA molecule is characterized by all of the following except: double helix shape. obligatory base pairing. ribose sugar. phosphate groups.	ribose sugar.
Which of the following is not a characteristic of skeletal muscles? Having one nucleus per cell Being attached to bone Having striations Having voluntary or “willed” muscles	Having one nucleus per cell
Which of the following is not a characteristic of connective tissue? Typically holds its cells together tightly by means of desmosomes Protects the body from foreign invaders Supports the body Transports substances throughout the body	Typically holds its cells together tightly by means of desmosomes
Which of the following is not a characteristic of smooth muscles? Having one nucleus per cell Having intercalated disks Composing the walls of the viscera Usually not being under voluntary control	Having intercalated disks
Which type of tissue has the greatest capacity to regenerate? Muscle Nervous Epithelial All of the above tissue have about equal ability to regenerate.	Epithelial
Basement membrane is composed of molecules made by _____ tissue. muscle connective epithelial Both B and C are correct.	connective epithelial
A tissue is: a membrane that lines body cavities. a group of similar cells that perform a common function. a thin sheet of cells embedded in a matrix. the most complex organizational unit of the body.	a group of similar cells that perform a common function.
The hypodermis: connects the dermis to underlying tissues. is the layer of skin in which hair is produced. connects the dermis and the epidermis. is the layer of skin in which the nails are produced.	connects the dermis to underlying tissues.
Which of the following is not a function of adipose tissue? Insulates to conserve body heat Defends the body from microbes and injurious substances Supports and protects the kidneys Stores excess food	Defends the body from microbes and injurious substances
Which of the following is not a characteristic of epithelial tissue? Forms glands that secrete substances into and out of the body Is important in communication and control Covers and protects body surfaces Lines the interior of body cavities	Is important in communication and control
Which cells electrically insulate axons to increase the speed of conduction? Oligodendrocytes Schwann cells Astrocytes Both A and B	Oligodendrocytes Schwann cells
The human hand has greater dexterity than the forepaw of any animal because of the freely movable joint of the: elbow. shoulder. wrist. thumb.	thumb.
In the epiphyseal plate, the zone of hypertrophy is in the _____ layer. first second third fourth	third
In intramembranous ossification, the process of appositional growth refers to the: development of a core layer of spongy bone. development of compact bone in long bones. addition of an outside layer of osseous tissue on flat bones. lengthen	addition of an outside layer of osseous tissue on flat bones.
The cell organelles that synthesize organic matrix substances in bone formation are: mitochondria and Golgi apparatus. ribosomes and Golgi apparatus. endoplasmic reticulum and ribosomes. endoplasmic reticulum and Golgi apparatus.	endoplasmic reticulum and Golgi apparatus.
In bone growth, the medullary cavity is enlarged because of the activity of: osteoclasts. osteocytes. osteoblasts. chondrocytes.	osteoclasts.
Which of the following is not a characteristic of the epiphyses? Made of spongy bone Cylindrical in shape Contain red bone marrow All of the above are characteristics of the epiphyses.	Cylindrical in shape

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Physiology 1-5