Bio WGU study for OA c190 EXAM 2025/2026 ACTUAL
COMPLETE REAL EXAMELABORATIONS QUESTIONS
AND VERIFIED ANSWERS (100% CORRECTLY
SOLVED) 2025 UPDATE!!
FADH2- - ANSWER-One of the electron carrier molecules
produced in the Krebs cycle of aerobic cellular respiration. It is
transferred to the electron transport chain where the electrons
are used to generate ATP.
Fats- - ANSWER-A type of lipid composed of glycerol and
saturated fatty acids;
typically solid at room
temperature.
Chlorophyll- - ANSWER-A plant pigment used to absorb light
energy for photosynthesis. Chlorophyll gives plants their green
color because it absorbs red and blue light particularly well,
while reflecting green.
Chloroplast- - ANSWER-An organelle found in plants and
photosynthetic protists (single-celled eukaryotic organisms)
that contain pigments such as chlorophyl. Its primary function
,is to capture solar energy and convert it into chemical energy
through the process of photosynthesis. Chloroplast absorbs
sunlight energy and uses the energy to power the synthesis of
organic food molecules (sugars). A chloroplast contains its
own DNA as a single circular chromosome.
Sister Chromatid - - ANSWER-One of two identical copies of a
chromosome duplicated during the S phase of the cell cycle. A
centromere connects two sister chromatids together. When
joined together, sister chromatids compose one chromosome.
Chromatids are separated from each other during mitosis or
meiosis II.
Citric acid cycle- - ANSWER-The 2nd stage of aerobic cellular
respiration that
occurs when acetyl CoA combines with a four-carbon
molecule and goes
through a cycle of reactions, ultimately producing ATP,
NADH, FADH2, and
CO2.
climate change- - ANSWER-It is the full range of climatic
disruptions that have occurred as a probable result of human
alteration of the atmosphere. In other words, it is recent climate
,warming—and weirdness—that is probably caused by human
activities and technology use.
Codominance- - ANSWER-A form of dominance where both
alleles of a gene
pair in a heterozygote are fully expressed. This results in
offspring with a
phenotype that is neither dominant nor recessive. A typical
example showing
codominance is the ABO blood
group system.
Codons- - ANSWER-A sequence of three nucleotides in an
mRNA molecule
that specifies which amino acid should be added to a
growing polypeptide
chain.
Commensalism- - ANSWER-A symbiotic relationship in
which one species
benefits and the other does not, but also is
not harmed.
Competition- - ANSWER-A type of interspecific interaction
where both species
, are
harmed.
complementary base pairing- - ANSWER-Describes the
hydrogen bonding that occurs between specific nucleotides on
opposing strands of DNA or RNA. In DNA, adenine is paired
with thymine, and guanine is paired with cytosine. When RNA
is made from DNA, adenine is paired with uracil, and guanine is
paired with cytosine.
Consumers- - ANSWER-An organism that must eat or absorb
complex food molecules derived from the bodies of other
organisms. Consumers get their energy and nutrients from
such food molecules. Humans and other animals are
consumers, as are fungi and most bacteria.
covalent bonds- - ANSWER-Covalent bonds represent the
sharing of the electrons (negatively charged subatomic
particles between atoms). The number of covalent bonds that
can form is dictated by the number of unpaired electrons in the
outer valence shell of the atom.
Cytoplasm- - ANSWER-The substance that fills the inside
contents of a cell between the plasma membrane and the
nucleus. Contains a semifluid medium, composed mainly of
COMPLETE REAL EXAMELABORATIONS QUESTIONS
AND VERIFIED ANSWERS (100% CORRECTLY
SOLVED) 2025 UPDATE!!
FADH2- - ANSWER-One of the electron carrier molecules
produced in the Krebs cycle of aerobic cellular respiration. It is
transferred to the electron transport chain where the electrons
are used to generate ATP.
Fats- - ANSWER-A type of lipid composed of glycerol and
saturated fatty acids;
typically solid at room
temperature.
Chlorophyll- - ANSWER-A plant pigment used to absorb light
energy for photosynthesis. Chlorophyll gives plants their green
color because it absorbs red and blue light particularly well,
while reflecting green.
Chloroplast- - ANSWER-An organelle found in plants and
photosynthetic protists (single-celled eukaryotic organisms)
that contain pigments such as chlorophyl. Its primary function
,is to capture solar energy and convert it into chemical energy
through the process of photosynthesis. Chloroplast absorbs
sunlight energy and uses the energy to power the synthesis of
organic food molecules (sugars). A chloroplast contains its
own DNA as a single circular chromosome.
Sister Chromatid - - ANSWER-One of two identical copies of a
chromosome duplicated during the S phase of the cell cycle. A
centromere connects two sister chromatids together. When
joined together, sister chromatids compose one chromosome.
Chromatids are separated from each other during mitosis or
meiosis II.
Citric acid cycle- - ANSWER-The 2nd stage of aerobic cellular
respiration that
occurs when acetyl CoA combines with a four-carbon
molecule and goes
through a cycle of reactions, ultimately producing ATP,
NADH, FADH2, and
CO2.
climate change- - ANSWER-It is the full range of climatic
disruptions that have occurred as a probable result of human
alteration of the atmosphere. In other words, it is recent climate
,warming—and weirdness—that is probably caused by human
activities and technology use.
Codominance- - ANSWER-A form of dominance where both
alleles of a gene
pair in a heterozygote are fully expressed. This results in
offspring with a
phenotype that is neither dominant nor recessive. A typical
example showing
codominance is the ABO blood
group system.
Codons- - ANSWER-A sequence of three nucleotides in an
mRNA molecule
that specifies which amino acid should be added to a
growing polypeptide
chain.
Commensalism- - ANSWER-A symbiotic relationship in
which one species
benefits and the other does not, but also is
not harmed.
Competition- - ANSWER-A type of interspecific interaction
where both species
, are
harmed.
complementary base pairing- - ANSWER-Describes the
hydrogen bonding that occurs between specific nucleotides on
opposing strands of DNA or RNA. In DNA, adenine is paired
with thymine, and guanine is paired with cytosine. When RNA
is made from DNA, adenine is paired with uracil, and guanine is
paired with cytosine.
Consumers- - ANSWER-An organism that must eat or absorb
complex food molecules derived from the bodies of other
organisms. Consumers get their energy and nutrients from
such food molecules. Humans and other animals are
consumers, as are fungi and most bacteria.
covalent bonds- - ANSWER-Covalent bonds represent the
sharing of the electrons (negatively charged subatomic
particles between atoms). The number of covalent bonds that
can form is dictated by the number of unpaired electrons in the
outer valence shell of the atom.
Cytoplasm- - ANSWER-The substance that fills the inside
contents of a cell between the plasma membrane and the
nucleus. Contains a semifluid medium, composed mainly of
