Bio 93 Midterm Review Exam 2026
Questions and Answers
Hydration shell - Correct answer-A hydration shell refers to the sphere of water
molecules surrounding dissolved ions or polar molecules. It forms due to the
attractive forces between the water molecules and the solute particles
Hydrophobic - Correct answer-Water fearing
Hydrophobic substances are nonpolar molecules that tend to repel and not dissolve
in water.
Hydrophilic - Correct answer-Hydrophilic substances, on the other hand, are polar
or ionic compounds that have an affinity for water. They readily dissolve or mix
with water, often forming hydrogen bonds with water molecules.
Buffer - Correct answer-A buffer is a solution that resists changes in pH when an
acid or base is added to it.
Carbohydrates: - Correct answer-Carbohydrates are organic compounds of carbon,
hydrogen, and oxygen. They serve as a crucial source of energy for living
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, organisms and play essential structural roles in cells and tissues. Common
examples include sugars, starches, and cellulose.
Lipids - Correct answer-Lipids are a diverse group of organic compounds that are
largely non-polar and hydrophobic. They include fats, oils, waxes, and
phospholipids.
Proteins - Correct answer-Proteins are complex macromolecules composed of
amino acids linked together through peptide bonds.
DNA: - Correct answer-DNA, or deoxyribonucleic acid, is a molecule that carries
genetic information in living cells. It consists of two long chains of nucleotides
twisted into a double helix.
ATGC
Amino acids - Correct answer-Amino acids are organic compounds that serve as
the building blocks of proteins.
Osmosis - Correct answer-Osmosis is the spontaneous movement of a solvent,
typically water, through a semipermeable membrane from a lower solute
concentration region to a higher solute concentration region
Pick the properties of life from the options below (select all that apply). - Correct
answer-Order
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Questions and Answers
Hydration shell - Correct answer-A hydration shell refers to the sphere of water
molecules surrounding dissolved ions or polar molecules. It forms due to the
attractive forces between the water molecules and the solute particles
Hydrophobic - Correct answer-Water fearing
Hydrophobic substances are nonpolar molecules that tend to repel and not dissolve
in water.
Hydrophilic - Correct answer-Hydrophilic substances, on the other hand, are polar
or ionic compounds that have an affinity for water. They readily dissolve or mix
with water, often forming hydrogen bonds with water molecules.
Buffer - Correct answer-A buffer is a solution that resists changes in pH when an
acid or base is added to it.
Carbohydrates: - Correct answer-Carbohydrates are organic compounds of carbon,
hydrogen, and oxygen. They serve as a crucial source of energy for living
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, organisms and play essential structural roles in cells and tissues. Common
examples include sugars, starches, and cellulose.
Lipids - Correct answer-Lipids are a diverse group of organic compounds that are
largely non-polar and hydrophobic. They include fats, oils, waxes, and
phospholipids.
Proteins - Correct answer-Proteins are complex macromolecules composed of
amino acids linked together through peptide bonds.
DNA: - Correct answer-DNA, or deoxyribonucleic acid, is a molecule that carries
genetic information in living cells. It consists of two long chains of nucleotides
twisted into a double helix.
ATGC
Amino acids - Correct answer-Amino acids are organic compounds that serve as
the building blocks of proteins.
Osmosis - Correct answer-Osmosis is the spontaneous movement of a solvent,
typically water, through a semipermeable membrane from a lower solute
concentration region to a higher solute concentration region
Pick the properties of life from the options below (select all that apply). - Correct
answer-Order
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