AP Biology, Practice Test Concepts test Exam Questions with
100% Correct Answers (actual comprehensive ) year
2025\2026 graded A
Abscisic acids -ANSWER->>>>A plant hormone that slows
down growth, often antagonizing actions of growth hormones.
Two of its many effects are to promote seed dormancy and
facilitate drought tolerance.
Action Potential -ANSWER->>>>A rapid change in the
membrane potential of an excitable cell, caused by stimulus-
triggered, selective opening and closing of voltage-sensitive
gates in sodium and potassium ion channels.
Active Transport -ANSWER->>>>The movement of particles
across a selectively permeable membrane against its
concentration gradient. It requires lots of energy - hence the
name "active" transport.
Alleles -ANSWER->>>>-Are alternative forms of the same
gene
,-A gene can have more than two alleles
-Are found on corresponding loci of homologous
Altruism -ANSWER->>>>Behavior that reduces an individual's
fitness while increasing the fitness of another individual.
Ammonia -ANSWER->>>>A small, very toxic molecule made
up of three hydrogen atoms and one nitrogen atom; produced by
nitrogen fixation and as a metabolic waste product of protein
and nucleic acid metabolism.
Anaphase -ANSWER->>>>The fourth stage of mitosis, in
which the chromatids of each chromosome have separated and
the daughter chromosomes are moving to the poles of the cell.
Angiosperm -ANSWER->>>>A flowering plant, which forms
seeds inside a protective chamber called an ovary.
Apical Meristem -ANSWER->>>>Embryonic plant tissue in the
tips of roots and in the buds of shoots that supplies cells for the
plant to grow in length.
, Arteries -ANSWER->>>>Vessels that carry blood away from
the heart to organs throughout the body
Arthropod -ANSWER->>>>A segmented coelomate with a
chitinous exoskeleton, jointed appendages, and a body formed of
distinct groups of segments.
Asexual Reproduction -ANSWER->>>>A type of reproduction
involving only one parent that produces genetically identical
offspring by budding or by the division of a single cell or the
entire organism into two or more parts.
ATP -ANSWER->>>>Adenine Tri-phosphate=ENERGY!
Auxins -ANSWER->>>>A term that primarily refers to
indoleacetic acid, a natural plant hormone that has a variety of
effects, including cell elongation, root formation, secondary
growth, and fruit growth.
Binary Fission -ANSWER->>>>The type of cell division by
which prokaryotes reproduce. Eh dividing daughter cell receives
a copy of the single parental chromosome.
100% Correct Answers (actual comprehensive ) year
2025\2026 graded A
Abscisic acids -ANSWER->>>>A plant hormone that slows
down growth, often antagonizing actions of growth hormones.
Two of its many effects are to promote seed dormancy and
facilitate drought tolerance.
Action Potential -ANSWER->>>>A rapid change in the
membrane potential of an excitable cell, caused by stimulus-
triggered, selective opening and closing of voltage-sensitive
gates in sodium and potassium ion channels.
Active Transport -ANSWER->>>>The movement of particles
across a selectively permeable membrane against its
concentration gradient. It requires lots of energy - hence the
name "active" transport.
Alleles -ANSWER->>>>-Are alternative forms of the same
gene
,-A gene can have more than two alleles
-Are found on corresponding loci of homologous
Altruism -ANSWER->>>>Behavior that reduces an individual's
fitness while increasing the fitness of another individual.
Ammonia -ANSWER->>>>A small, very toxic molecule made
up of three hydrogen atoms and one nitrogen atom; produced by
nitrogen fixation and as a metabolic waste product of protein
and nucleic acid metabolism.
Anaphase -ANSWER->>>>The fourth stage of mitosis, in
which the chromatids of each chromosome have separated and
the daughter chromosomes are moving to the poles of the cell.
Angiosperm -ANSWER->>>>A flowering plant, which forms
seeds inside a protective chamber called an ovary.
Apical Meristem -ANSWER->>>>Embryonic plant tissue in the
tips of roots and in the buds of shoots that supplies cells for the
plant to grow in length.
, Arteries -ANSWER->>>>Vessels that carry blood away from
the heart to organs throughout the body
Arthropod -ANSWER->>>>A segmented coelomate with a
chitinous exoskeleton, jointed appendages, and a body formed of
distinct groups of segments.
Asexual Reproduction -ANSWER->>>>A type of reproduction
involving only one parent that produces genetically identical
offspring by budding or by the division of a single cell or the
entire organism into two or more parts.
ATP -ANSWER->>>>Adenine Tri-phosphate=ENERGY!
Auxins -ANSWER->>>>A term that primarily refers to
indoleacetic acid, a natural plant hormone that has a variety of
effects, including cell elongation, root formation, secondary
growth, and fruit growth.
Binary Fission -ANSWER->>>>The type of cell division by
which prokaryotes reproduce. Eh dividing daughter cell receives
a copy of the single parental chromosome.
