ECPI Final Exam Bio 112: Questions With Complete
Solutions
Osmosis is the movement of Correct Ans - water through a selectively
permeable membrane down its concentration gradient
The ability of an organism to sense and react to changes in its body illustrates
Correct Ans - responsiveness
In negative feedback mechanisms, changes away from the normal state
Correct Ans - stimulate changes in the opposite direction to restore
normal levels
Which of the following are living organisms simplest unit? Correct Ans -
cells
An organic compound always contains Correct Ans - carbon and
hydrogen
What best describes the function of the skeletal system? Correct Ans -
support and movement
Part of the cell cycle when DNA replicates: Correct Ans - Interphase
DNA Correct Ans - stores genetic information, including instructions for
enzymes that synthesize fats and carbohydrates
An atom is electrically neutral when Correct Ans - the number of
electrons equals the number of protons
Homeostasis is the Correct Ans - tendency of the body to maintain a
stable internal enviroment
Which of the following lists best illustrates the idea of increasing levels of
complexity? Correct Ans - organelles, cells, tissues, organs, organ
systems
An ion can be described as Correct Ans - an electrically charged particle
,A sagittal section divides the body into Correct Ans - right and left
portions
the cell membrane is said to be: Correct Ans - selectively permeable
Which of the following must the human body obtain from the environment in
order to survive? Correct Ans - water
Loose thread like strands of DNA and protein: Correct Ans - Chromatin
Which of the following is the most abundant inorganic substance in the body?
Correct Ans - Water
What is the purpose of mitosis? Correct Ans - Division of the cell nucleus
Cytoplasm consists of Correct Ans - Cytosol and organelles
What is necrosis? Correct Ans - Cell death that occurs due to tissue
damage
The organelle is a "tail" used for locomotion in cells such as bacteria or sperm
Correct Ans - flagella
This organelle is a network of interconnected membranes and acts like the
cell's factory; forming sacs and canals that synthesizes protein and lipid
molecules Correct Ans - endoplasmic reticulum
The midportion of the abdomen is called the _________ region Correct Ans -
umbilical
In a covalent bond Correct Ans - atoms share a pair or more of electrons
Phase of mitosis when new nuclear envelopes form around the two new
nuclei and chromosomes unwind back to chromatin Correct Ans -
Telophase
, The activities of an anatomist consist of _________, whereas those of a
physiologist consist of ________ Correct Ans - observing the structure of
body parts; studying the functions of body parts
An isotonic solution Correct Ans - has the same osmotic pressure as the
cells in the solution
Phase of mitosis when the chromosomes line up in the middle of the cell:
Correct Ans - Metaphase
Which of the following illustrates a positive feedback mechanism? Correct
Ans - Uterine contractions during childbirth
The formula H2O refers to Correct Ans - an inorganic molecule
In a ________ solution, cells swell and may burst Correct Ans - Hypotonic
"Powerhouse" of the cell that makes a lot of ATP: Correct Ans -
Mitochondria
Stages of the cell cycle unfold in the following order: Correct Ans -
interphase, mitosis, cytoplasmic division, differentiation
tara discovers a rapidly growing lump that doubles in size over a month. A
doctor does a biopsy and discovers it's a form of cancer, which can result if
Correct Ans - mitosis/ cell division is too frequent
Each of the following are examples of a lipid-based molecule except for:
Correct Ans - protein
The atomic number of an atom equals the number of Correct Ans -
protons
The fingertips are _______ in relationship to the wrist Correct Ans - distal
to
What is the chemical symbol for sodium? Correct Ans - Na
Solutions
Osmosis is the movement of Correct Ans - water through a selectively
permeable membrane down its concentration gradient
The ability of an organism to sense and react to changes in its body illustrates
Correct Ans - responsiveness
In negative feedback mechanisms, changes away from the normal state
Correct Ans - stimulate changes in the opposite direction to restore
normal levels
Which of the following are living organisms simplest unit? Correct Ans -
cells
An organic compound always contains Correct Ans - carbon and
hydrogen
What best describes the function of the skeletal system? Correct Ans -
support and movement
Part of the cell cycle when DNA replicates: Correct Ans - Interphase
DNA Correct Ans - stores genetic information, including instructions for
enzymes that synthesize fats and carbohydrates
An atom is electrically neutral when Correct Ans - the number of
electrons equals the number of protons
Homeostasis is the Correct Ans - tendency of the body to maintain a
stable internal enviroment
Which of the following lists best illustrates the idea of increasing levels of
complexity? Correct Ans - organelles, cells, tissues, organs, organ
systems
An ion can be described as Correct Ans - an electrically charged particle
,A sagittal section divides the body into Correct Ans - right and left
portions
the cell membrane is said to be: Correct Ans - selectively permeable
Which of the following must the human body obtain from the environment in
order to survive? Correct Ans - water
Loose thread like strands of DNA and protein: Correct Ans - Chromatin
Which of the following is the most abundant inorganic substance in the body?
Correct Ans - Water
What is the purpose of mitosis? Correct Ans - Division of the cell nucleus
Cytoplasm consists of Correct Ans - Cytosol and organelles
What is necrosis? Correct Ans - Cell death that occurs due to tissue
damage
The organelle is a "tail" used for locomotion in cells such as bacteria or sperm
Correct Ans - flagella
This organelle is a network of interconnected membranes and acts like the
cell's factory; forming sacs and canals that synthesizes protein and lipid
molecules Correct Ans - endoplasmic reticulum
The midportion of the abdomen is called the _________ region Correct Ans -
umbilical
In a covalent bond Correct Ans - atoms share a pair or more of electrons
Phase of mitosis when new nuclear envelopes form around the two new
nuclei and chromosomes unwind back to chromatin Correct Ans -
Telophase
, The activities of an anatomist consist of _________, whereas those of a
physiologist consist of ________ Correct Ans - observing the structure of
body parts; studying the functions of body parts
An isotonic solution Correct Ans - has the same osmotic pressure as the
cells in the solution
Phase of mitosis when the chromosomes line up in the middle of the cell:
Correct Ans - Metaphase
Which of the following illustrates a positive feedback mechanism? Correct
Ans - Uterine contractions during childbirth
The formula H2O refers to Correct Ans - an inorganic molecule
In a ________ solution, cells swell and may burst Correct Ans - Hypotonic
"Powerhouse" of the cell that makes a lot of ATP: Correct Ans -
Mitochondria
Stages of the cell cycle unfold in the following order: Correct Ans -
interphase, mitosis, cytoplasmic division, differentiation
tara discovers a rapidly growing lump that doubles in size over a month. A
doctor does a biopsy and discovers it's a form of cancer, which can result if
Correct Ans - mitosis/ cell division is too frequent
Each of the following are examples of a lipid-based molecule except for:
Correct Ans - protein
The atomic number of an atom equals the number of Correct Ans -
protons
The fingertips are _______ in relationship to the wrist Correct Ans - distal
to
What is the chemical symbol for sodium? Correct Ans - Na
