ECU BIO 1050 BUNNELL EXAM 2 | LATEST STUDY |
QUESTIONS & ANSWERS | 2026 UPDATES
what is the by-product of photosynthesis is important in altering the atmosphere of the earth so
that aerobic organisms could evolve? - ANSWER- oxygen
a green plant can carry our photosynthesis if given nothing more than: - ANSWER- water,
light and air
potenital energy - ANSWER- is contained in matter placed in certain positions or
arrangements
when ATP is hydrolyzed to ADP, what happens? - ANSWER- one phosphate is removed
a pigment that reflects all wavelengths of visible light appears - ANSWER- white
when someone puts their contact lenses into their eyes they use saline solution. this doesn't
burn because the solution is - ANSWER- isotonic
every time a source of energy is converted from one form to another - ANSWER- some of
the energy is converted to heat, which is one of the least usable forms of kinetic energy
the net movement of molecules from locally concentrated regions to uniform distributions is
the best described as - ANSWER- diffusion
when electrons transfer their energy to help pump protons across the membrane against their
concentration gradient in the mitochondria is called - ANSWER- active transport
the statement that best describes the relationship between respiration and photosynthesis -
ANSWER- photosynthesis stores energy in complex organic molecules, while respiration
releases it
Around campus there are purple and gold pansies (flowering plants) representing ECU's colors.
What is occurring in the petals of the purple flowers? - ANSWER- yellow light is being
absorbed the purple light is being reflected
Photosynthesis is the process by which plants, some bacteria, and some protistans use the
energy from sunlight to produce sugar, which________ converts to ATP, the "fuel" used by all
living things - ANSWER- cellular respiration
, what is NOT a form of kinetic energy - ANSWER- a covalent bond linking phosphate
molecules
Life gains most of its energy from: - ANSWER- sunlight
what is NOT a product of photosynthesis - ANSWER- carbon dioxide
the movement of H+ into the stomach is accomplished through - ANSWER- active
transport
a unique characteristic of mitochondria is that they are inherited from the female parent only.
what is the correct explanation for this phenomenon? - ANSWER- male sperm cells have
mitochondria, but because the sperm contributes DNA but no cytoplasm, no mitochondria are
passed to the egg at fertilization
what is NOT correct about fermentation - ANSWER- all of the above are correct
the primary function of molecular membranes is the transport of ions and molecules in and out
of cell-transport is directional and selective. the moving of molecules from the areas of high
concentration to low concentration to gain energy is described as - ANSWER- passive
transport
what role does O2 play in aerobic respiration - ANSWER- it is the final electron acceptor at
the end of the electron transport chain
Animal cells have "counters" that keep track of how many times a cell has divided. These
counters are called: - ANSWER- telomeres
Sex cells having the ___________ number of chromosomes are called ____________. -
ANSWER- haploid; gametes
In any DNA molecule, the number of guanine bases will: - ANSWER- always be equal to
the number of cytosine bases
eukaryotic cells can divide by - ANSWER- both mitosis and meiosis
the division of cytoplasm during cell division is referred to as - ANSWER- cytokinesis
prokaryotic cells generally have a single circular chromosome attached to - ANSWER- the
cell membrane
In some species, sex is determined by environmental, rather than genetic, factors. This is true
of: - ANSWER- turtles
QUESTIONS & ANSWERS | 2026 UPDATES
what is the by-product of photosynthesis is important in altering the atmosphere of the earth so
that aerobic organisms could evolve? - ANSWER- oxygen
a green plant can carry our photosynthesis if given nothing more than: - ANSWER- water,
light and air
potenital energy - ANSWER- is contained in matter placed in certain positions or
arrangements
when ATP is hydrolyzed to ADP, what happens? - ANSWER- one phosphate is removed
a pigment that reflects all wavelengths of visible light appears - ANSWER- white
when someone puts their contact lenses into their eyes they use saline solution. this doesn't
burn because the solution is - ANSWER- isotonic
every time a source of energy is converted from one form to another - ANSWER- some of
the energy is converted to heat, which is one of the least usable forms of kinetic energy
the net movement of molecules from locally concentrated regions to uniform distributions is
the best described as - ANSWER- diffusion
when electrons transfer their energy to help pump protons across the membrane against their
concentration gradient in the mitochondria is called - ANSWER- active transport
the statement that best describes the relationship between respiration and photosynthesis -
ANSWER- photosynthesis stores energy in complex organic molecules, while respiration
releases it
Around campus there are purple and gold pansies (flowering plants) representing ECU's colors.
What is occurring in the petals of the purple flowers? - ANSWER- yellow light is being
absorbed the purple light is being reflected
Photosynthesis is the process by which plants, some bacteria, and some protistans use the
energy from sunlight to produce sugar, which________ converts to ATP, the "fuel" used by all
living things - ANSWER- cellular respiration
, what is NOT a form of kinetic energy - ANSWER- a covalent bond linking phosphate
molecules
Life gains most of its energy from: - ANSWER- sunlight
what is NOT a product of photosynthesis - ANSWER- carbon dioxide
the movement of H+ into the stomach is accomplished through - ANSWER- active
transport
a unique characteristic of mitochondria is that they are inherited from the female parent only.
what is the correct explanation for this phenomenon? - ANSWER- male sperm cells have
mitochondria, but because the sperm contributes DNA but no cytoplasm, no mitochondria are
passed to the egg at fertilization
what is NOT correct about fermentation - ANSWER- all of the above are correct
the primary function of molecular membranes is the transport of ions and molecules in and out
of cell-transport is directional and selective. the moving of molecules from the areas of high
concentration to low concentration to gain energy is described as - ANSWER- passive
transport
what role does O2 play in aerobic respiration - ANSWER- it is the final electron acceptor at
the end of the electron transport chain
Animal cells have "counters" that keep track of how many times a cell has divided. These
counters are called: - ANSWER- telomeres
Sex cells having the ___________ number of chromosomes are called ____________. -
ANSWER- haploid; gametes
In any DNA molecule, the number of guanine bases will: - ANSWER- always be equal to
the number of cytosine bases
eukaryotic cells can divide by - ANSWER- both mitosis and meiosis
the division of cytoplasm during cell division is referred to as - ANSWER- cytokinesis
prokaryotic cells generally have a single circular chromosome attached to - ANSWER- the
cell membrane
In some species, sex is determined by environmental, rather than genetic, factors. This is true
of: - ANSWER- turtles
