BIO 201 STRAIGHTERLINE CUMULATIVE FINAL
2026 COMPLETE QUESTIONS AND ANSWERS
GRADED A+ FULL SOLUTION
◉ What feature of genetic mutations can eventually lead to the
evolution of new species? Answer: Mutations produce changes in the
DNA sequence of a gene.
◉ The complete genetic composition of an organism is called its
Answer: genome.
◉ A researcher decides to test the scientific validity of the common
phrase "An apple a day keeps the doctor away." What would be a
valid hypothesis to investigate this specific question? Answer: The
daily consumption of a single apple does not change the number of
visits to the doctor.
◉ Tritiated hydrogen (3H) differs from hydrogen (1H) in that
Answer: ) 3H has 2 more neutrons than 1H
◉ When one atom loses an electron to another atom, it results in the
formation of Answer: cations and anions that can form ionic bonds.
,◉ What type of bonding is likely to occur between two water
molecules or strands of DNA? Answer: covalent
◉ Carbon and hydrogen have similar electronegativities and
combine together to form hydrocarbon molecules. What type of
bonds form between these atoms? Answer: nonpolar covalent
◉ Amphipathic molecules Answer: possess both hydrophilic and
hydrophobic properties.
◉ If orange juice has a pH of 4, then it can be described as Answer:
an acidic solution
◉ The addition of a strong acid like HCl to an aqueous solution
would result in Answer: a decrease in pH
◉ Select the statement that is true when comparing solutions with a
pH of 6 and a pH of 8. Answer: The solution with a pH of 6 has a 100
times higher concentration of hydrogen ions than a solution with a
pH of 8.
◉ A dehydration reaction Answer: is used to form polymers
,◉ Glycogen is to animal cells as ________ is to plant cells. Answer:
starch
◉ ______ is a polymer of glucose Answer: Cellulose
◉ A disaccharide, such as maltose, consists of two molecules of
glucose linked by what type of bond? Answer: glycosidic
◉ Fats and fatty acids Answer: are insoluble in water.
◉ The major class of macromolecules that stores energy and makes
up the major component of plasma membranes are Answer: lipids
◉ A phospholipid has ________ fatty acids attached to glycerol,
whereas a fat has ________. Answer: 2; 3
◉ The portion of an amino acid that makes the amino acid unique
among the 20 different amino acids is Answer: the side chain or R-
group.
◉ An amino acid is to a protein as a ________ is to a nucleic acid.
Answer: nucleotide
, ◉ In order to visualize the fine structure of viruses and cytoskeletal
filaments at 10-25 nanometers in diameter the type of microscopy
that would be most effective is Answer: transmission electron
microscopy.
◉ Prokaryotes, such as bacterial cells, differ from eukaryotes in that
eukaryotes Answer: possess membrane-bound organelles.
◉ FtsZ, MreB, and CreS proteins regulate the shape and structure of
bacterial (prokaryote) cells. These proteins are homologous to the
________ in eukaryotes. Answer: cytoskelaton
◉ Ribosomes are the structures in the cell that produce Answer:
proteins
◉ The route that most accurately describes secretory protein
movement through the endomembrane system would be Answer:
rough endoplasmic reticulum→vesicles→ Golgi apparatus→vesicles
→plasma membrane.
◉ Cyanide binds and impairs one of the molecules involved in the
synthesis of ATP. The target organelle for cyanide must be Answer:
mitochondria.
2026 COMPLETE QUESTIONS AND ANSWERS
GRADED A+ FULL SOLUTION
◉ What feature of genetic mutations can eventually lead to the
evolution of new species? Answer: Mutations produce changes in the
DNA sequence of a gene.
◉ The complete genetic composition of an organism is called its
Answer: genome.
◉ A researcher decides to test the scientific validity of the common
phrase "An apple a day keeps the doctor away." What would be a
valid hypothesis to investigate this specific question? Answer: The
daily consumption of a single apple does not change the number of
visits to the doctor.
◉ Tritiated hydrogen (3H) differs from hydrogen (1H) in that
Answer: ) 3H has 2 more neutrons than 1H
◉ When one atom loses an electron to another atom, it results in the
formation of Answer: cations and anions that can form ionic bonds.
,◉ What type of bonding is likely to occur between two water
molecules or strands of DNA? Answer: covalent
◉ Carbon and hydrogen have similar electronegativities and
combine together to form hydrocarbon molecules. What type of
bonds form between these atoms? Answer: nonpolar covalent
◉ Amphipathic molecules Answer: possess both hydrophilic and
hydrophobic properties.
◉ If orange juice has a pH of 4, then it can be described as Answer:
an acidic solution
◉ The addition of a strong acid like HCl to an aqueous solution
would result in Answer: a decrease in pH
◉ Select the statement that is true when comparing solutions with a
pH of 6 and a pH of 8. Answer: The solution with a pH of 6 has a 100
times higher concentration of hydrogen ions than a solution with a
pH of 8.
◉ A dehydration reaction Answer: is used to form polymers
,◉ Glycogen is to animal cells as ________ is to plant cells. Answer:
starch
◉ ______ is a polymer of glucose Answer: Cellulose
◉ A disaccharide, such as maltose, consists of two molecules of
glucose linked by what type of bond? Answer: glycosidic
◉ Fats and fatty acids Answer: are insoluble in water.
◉ The major class of macromolecules that stores energy and makes
up the major component of plasma membranes are Answer: lipids
◉ A phospholipid has ________ fatty acids attached to glycerol,
whereas a fat has ________. Answer: 2; 3
◉ The portion of an amino acid that makes the amino acid unique
among the 20 different amino acids is Answer: the side chain or R-
group.
◉ An amino acid is to a protein as a ________ is to a nucleic acid.
Answer: nucleotide
, ◉ In order to visualize the fine structure of viruses and cytoskeletal
filaments at 10-25 nanometers in diameter the type of microscopy
that would be most effective is Answer: transmission electron
microscopy.
◉ Prokaryotes, such as bacterial cells, differ from eukaryotes in that
eukaryotes Answer: possess membrane-bound organelles.
◉ FtsZ, MreB, and CreS proteins regulate the shape and structure of
bacterial (prokaryote) cells. These proteins are homologous to the
________ in eukaryotes. Answer: cytoskelaton
◉ Ribosomes are the structures in the cell that produce Answer:
proteins
◉ The route that most accurately describes secretory protein
movement through the endomembrane system would be Answer:
rough endoplasmic reticulum→vesicles→ Golgi apparatus→vesicles
→plasma membrane.
◉ Cyanide binds and impairs one of the molecules involved in the
synthesis of ATP. The target organelle for cyanide must be Answer:
mitochondria.
