ECPI Final Exam Bio 112 Questions With Correct
Answers
Osmosis is the movement of - ANSWER- 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 -
ANSWER- responsiveness
In negative feedback mechanisms, changes away from the normal state - ANSWER-
stimulate changes in the opposite direction to restore normal levels
Which of the following are living organisms simplest unit? - ANSWER- cells
An organic compound always contains - ANSWER- carbon and hydrogen
What best describes the function of the skeletal system? - ANSWER- support and
movement
Part of the cell cycle when DNA replicates: - ANSWER- Interphase
DNA - ANSWER- stores genetic information, including instructions for enzymes that
synthesize fats and carbohydrates
An atom is electrically neutral when - ANSWER- the number of electrons equals the
number of protons
Homeostasis is the - ANSWER- tendency of the body to maintain a stable internal
enviroment
Which of the following lists best illustrates the idea of increasing levels of complexity? -
ANSWER- organelles, cells, tissues, organs, organ systems
An ion can be described as - ANSWER- an electrically charged particle
A sagittal section divides the body into - ANSWER- right and left portions
the cell membrane is said to be: - ANSWER- selectively permeable
,Which of the following must the human body obtain from the environment in order to
survive? - ANSWER- water
Loose thread like strands of DNA and protein: - ANSWER- Chromatin
Which of the following is the most abundant inorganic substance in the body? -
ANSWER- Water
What is the purpose of mitosis? - ANSWER- Division of the cell nucleus
Cytoplasm consists of - ANSWER- Cytosol and organelles
What is necrosis? - ANSWER- Cell death that occurs due to tissue damage
The organelle is a "tail" used for locomotion in cells such as bacteria or sperm -
ANSWER- 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 - ANSWER-
endoplasmic reticulum
The midportion of the abdomen is called the _________ region - ANSWER- umbilical
In a covalent bond - ANSWER- 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 - ANSWER- Telophase
The activities of an anatomist consist of _________, whereas those of a physiologist
consist of ________ - ANSWER- observing the structure of body parts; studying the
functions of body parts
An isotonic solution - ANSWER- 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: - ANSWER-
Metaphase
Which of the following illustrates a positive feedback mechanism? - ANSWER- Uterine
contractions during childbirth
, The formula H2O refers to - ANSWER- an inorganic molecule
In a ________ solution, cells swell and may burst - ANSWER- Hypotonic
"Powerhouse" of the cell that makes a lot of ATP: - ANSWER- Mitochondria
Stages of the cell cycle unfold in the following order: - ANSWER- 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 - ANSWER- mitosis/ cell
division is too frequent
Each of the following are examples of a lipid-based molecule except for: - ANSWER-
protein
The atomic number of an atom equals the number of - ANSWER- protons
The fingertips are _______ in relationship to the wrist - ANSWER- distal to
What is the chemical symbol for sodium? - ANSWER- Na
Which structure is found in the axial portion of the body? - ANSWER- Head
Which subatomic particle has a negative charge? - ANSWER- electron
In a _______ solution, cells shrink and shrivel - ANSWER- hypertonic
Programmed cell death occurs during development, including the removal of webbing
between fingers of the fetus. This process is known as - ANSWER- apoptosis
In a _______ solution, cells swell and may burst - ANSWER- hypotonic
Has ribosomes on its membranes and is involved with protein synthesis: - ANSWER-
rough endoplasmic reticulum
Stomach acid is considered a strongly acidic. Which pH value is it likely to have? -
ANSWER- 2
Answers
Osmosis is the movement of - ANSWER- 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 -
ANSWER- responsiveness
In negative feedback mechanisms, changes away from the normal state - ANSWER-
stimulate changes in the opposite direction to restore normal levels
Which of the following are living organisms simplest unit? - ANSWER- cells
An organic compound always contains - ANSWER- carbon and hydrogen
What best describes the function of the skeletal system? - ANSWER- support and
movement
Part of the cell cycle when DNA replicates: - ANSWER- Interphase
DNA - ANSWER- stores genetic information, including instructions for enzymes that
synthesize fats and carbohydrates
An atom is electrically neutral when - ANSWER- the number of electrons equals the
number of protons
Homeostasis is the - ANSWER- tendency of the body to maintain a stable internal
enviroment
Which of the following lists best illustrates the idea of increasing levels of complexity? -
ANSWER- organelles, cells, tissues, organs, organ systems
An ion can be described as - ANSWER- an electrically charged particle
A sagittal section divides the body into - ANSWER- right and left portions
the cell membrane is said to be: - ANSWER- selectively permeable
,Which of the following must the human body obtain from the environment in order to
survive? - ANSWER- water
Loose thread like strands of DNA and protein: - ANSWER- Chromatin
Which of the following is the most abundant inorganic substance in the body? -
ANSWER- Water
What is the purpose of mitosis? - ANSWER- Division of the cell nucleus
Cytoplasm consists of - ANSWER- Cytosol and organelles
What is necrosis? - ANSWER- Cell death that occurs due to tissue damage
The organelle is a "tail" used for locomotion in cells such as bacteria or sperm -
ANSWER- 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 - ANSWER-
endoplasmic reticulum
The midportion of the abdomen is called the _________ region - ANSWER- umbilical
In a covalent bond - ANSWER- 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 - ANSWER- Telophase
The activities of an anatomist consist of _________, whereas those of a physiologist
consist of ________ - ANSWER- observing the structure of body parts; studying the
functions of body parts
An isotonic solution - ANSWER- 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: - ANSWER-
Metaphase
Which of the following illustrates a positive feedback mechanism? - ANSWER- Uterine
contractions during childbirth
, The formula H2O refers to - ANSWER- an inorganic molecule
In a ________ solution, cells swell and may burst - ANSWER- Hypotonic
"Powerhouse" of the cell that makes a lot of ATP: - ANSWER- Mitochondria
Stages of the cell cycle unfold in the following order: - ANSWER- 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 - ANSWER- mitosis/ cell
division is too frequent
Each of the following are examples of a lipid-based molecule except for: - ANSWER-
protein
The atomic number of an atom equals the number of - ANSWER- protons
The fingertips are _______ in relationship to the wrist - ANSWER- distal to
What is the chemical symbol for sodium? - ANSWER- Na
Which structure is found in the axial portion of the body? - ANSWER- Head
Which subatomic particle has a negative charge? - ANSWER- electron
In a _______ solution, cells shrink and shrivel - ANSWER- hypertonic
Programmed cell death occurs during development, including the removal of webbing
between fingers of the fetus. This process is known as - ANSWER- apoptosis
In a _______ solution, cells swell and may burst - ANSWER- hypotonic
Has ribosomes on its membranes and is involved with protein synthesis: - ANSWER-
rough endoplasmic reticulum
Stomach acid is considered a strongly acidic. Which pH value is it likely to have? -
ANSWER- 2
