BIO 93 MIDTERM REVIEW (TEST QUESTIONS) MULTIPLE CHOICE QUESTIONS FROM PAST
MIDTERMS, FINALS, AND QUIZZES WITH COMPLETE SOLUTIONS!!
Hydration shell - (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 - (answer)Water fearing
Hydrophobic substances are nonpolar molecules that tend to repel and not dissolve in water.
Hydrophilic - (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 - (answer)A buffer is a solution that resists changes in pH when an acid or base is added to it.
Carbohydrates: - (answer)Carbohydrates are organic compounds of carbon, hydrogen, and oxygen. They
serve as a crucial source of energy for living organisms and play essential structural roles in cells and
tissues. Common examples include sugars, starches, and cellulose.
Lipids - (answer)Lipids are a diverse group of organic compounds that are largely non-polar and
hydrophobic. They include fats, oils, waxes, and phospholipids.
Proteins - (answer)Proteins are complex macromolecules composed of amino acids linked together
through peptide bonds.
DNA: - (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 - (answer)Amino acids are organic compounds that serve as the building blocks of proteins.
, BIO 93 MIDTERM REVIEW (TEST QUESTIONS) MULTIPLE CHOICE QUESTIONS FROM PAST
MIDTERMS, FINALS, AND QUIZZES WITH COMPLETE SOLUTIONS!!
Osmosis - (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). - (answer)Order
Energy processing
Regulation
Which of the following statements is a true sequence about the emergent properties theme? -
(answer)Organs → tissues → cells → organelles → molecules
The emergent properties theme represents the hierarchical arrangement of biological organization in
living organisms, from the most complex structures down to the fundamental components. In this case,
the sequence is The Biosphere → Ecosystems → Communities → Populations → Organisms → Organs →
Tissues → Cells → Organelles → Molecules.
All cells share common characteristics - (answer)1. Enclosed by a membrane
2. Use DNA as genetic information.
Cells have a protective boundary called a membrane, which controls what goes in and out. They also use
DNA as a set of instructions for their growth and functioning.
The smallest unit of chemical elements is - (answer)An atom.
Atoms are the tiniest building blocks of matter, and each type of atom represents a specific element.
The H atom forms a covalent bond with another atom in the same molecule where
MIDTERMS, FINALS, AND QUIZZES WITH COMPLETE SOLUTIONS!!
Hydration shell - (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 - (answer)Water fearing
Hydrophobic substances are nonpolar molecules that tend to repel and not dissolve in water.
Hydrophilic - (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 - (answer)A buffer is a solution that resists changes in pH when an acid or base is added to it.
Carbohydrates: - (answer)Carbohydrates are organic compounds of carbon, hydrogen, and oxygen. They
serve as a crucial source of energy for living organisms and play essential structural roles in cells and
tissues. Common examples include sugars, starches, and cellulose.
Lipids - (answer)Lipids are a diverse group of organic compounds that are largely non-polar and
hydrophobic. They include fats, oils, waxes, and phospholipids.
Proteins - (answer)Proteins are complex macromolecules composed of amino acids linked together
through peptide bonds.
DNA: - (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 - (answer)Amino acids are organic compounds that serve as the building blocks of proteins.
, BIO 93 MIDTERM REVIEW (TEST QUESTIONS) MULTIPLE CHOICE QUESTIONS FROM PAST
MIDTERMS, FINALS, AND QUIZZES WITH COMPLETE SOLUTIONS!!
Osmosis - (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). - (answer)Order
Energy processing
Regulation
Which of the following statements is a true sequence about the emergent properties theme? -
(answer)Organs → tissues → cells → organelles → molecules
The emergent properties theme represents the hierarchical arrangement of biological organization in
living organisms, from the most complex structures down to the fundamental components. In this case,
the sequence is The Biosphere → Ecosystems → Communities → Populations → Organisms → Organs →
Tissues → Cells → Organelles → Molecules.
All cells share common characteristics - (answer)1. Enclosed by a membrane
2. Use DNA as genetic information.
Cells have a protective boundary called a membrane, which controls what goes in and out. They also use
DNA as a set of instructions for their growth and functioning.
The smallest unit of chemical elements is - (answer)An atom.
Atoms are the tiniest building blocks of matter, and each type of atom represents a specific element.
The H atom forms a covalent bond with another atom in the same molecule where
