BIO 100 - MIDTERM 1 REVIEW
QUESTIONS WITH VERIFIED ANSWERS
2026
Hypothesis - correct answer-
Observations can lead to us asking questions and propose hypothetical explanations called hypothesis
Elements that make up 96% of the human body weight - correct answer-
Oxygen, Carbon, Hydrogen, Nitrogen,
Elements that make up 4%Aof the human body weight - correct answer-
Calcium, Phosphorus, Potassium, Sulfur, Sodium, Chlorine, Magnesium
Elements that make up less than .01% of the human body weight - correct answer-
Boron, Chromium, Copper, Fluorine, Iodine, Iron
Mass and % of Oxygen - correct answer-8, 65
Mass and % of Carbon - correct answer-6, 18.5
Mass and % of Hydrogen - correct answer-1, 9.5
Mass and % of Nitrogen - correct answer-7, 3.3
Covalent Bond - correct answer-Is the sharing of a pair of valence electrons by two atoms
Molecule - correct answer-Consists of two or more atoms held together by covalent bonds
Polar Covalent Bond - correct answer-
One atom is more electronegative, and atoms do not share the electron equally
, Ionic Bonds - correct answer-
Atoms strip electrons from their bonding partners. After the transfer of an electron, both atoms have c
harges
Hydrogen Bond - correct answer-An H atom covalently bonded to one e-
atom. Usually oxygen or nitrogen atoms
Polar Molecule - correct answer-
Polarity allows water molecules to form hydrogen bonds with each other
Hydration Shell - correct answer-Each ion is surrounded by a sphere of water molecules called...
Condensation Reaction - correct answer-
Two monomers bond together through the loss of a water molecule
Enzymes - correct answer-Macromolecules that speed up the dehydration process
Hydrolysis - correct answer-The process by which polymers are broken down to monomers
Glucose Molecule - correct answer-
Monomer - correct answer-
AAmolecule that can be bonded to other identical molecules to form a polymer
Polymer - correct answer-
A substance that has a molecular structure consisting chiefly or entirely of a large number of similar uni
ts bonded together
Polysaccharide - correct answer-The polymers of sugars and have storage and structural roles
Starch - correct answer-A storage polysaccharide of plants, and consists entirely of glucose monomers
QUESTIONS WITH VERIFIED ANSWERS
2026
Hypothesis - correct answer-
Observations can lead to us asking questions and propose hypothetical explanations called hypothesis
Elements that make up 96% of the human body weight - correct answer-
Oxygen, Carbon, Hydrogen, Nitrogen,
Elements that make up 4%Aof the human body weight - correct answer-
Calcium, Phosphorus, Potassium, Sulfur, Sodium, Chlorine, Magnesium
Elements that make up less than .01% of the human body weight - correct answer-
Boron, Chromium, Copper, Fluorine, Iodine, Iron
Mass and % of Oxygen - correct answer-8, 65
Mass and % of Carbon - correct answer-6, 18.5
Mass and % of Hydrogen - correct answer-1, 9.5
Mass and % of Nitrogen - correct answer-7, 3.3
Covalent Bond - correct answer-Is the sharing of a pair of valence electrons by two atoms
Molecule - correct answer-Consists of two or more atoms held together by covalent bonds
Polar Covalent Bond - correct answer-
One atom is more electronegative, and atoms do not share the electron equally
, Ionic Bonds - correct answer-
Atoms strip electrons from their bonding partners. After the transfer of an electron, both atoms have c
harges
Hydrogen Bond - correct answer-An H atom covalently bonded to one e-
atom. Usually oxygen or nitrogen atoms
Polar Molecule - correct answer-
Polarity allows water molecules to form hydrogen bonds with each other
Hydration Shell - correct answer-Each ion is surrounded by a sphere of water molecules called...
Condensation Reaction - correct answer-
Two monomers bond together through the loss of a water molecule
Enzymes - correct answer-Macromolecules that speed up the dehydration process
Hydrolysis - correct answer-The process by which polymers are broken down to monomers
Glucose Molecule - correct answer-
Monomer - correct answer-
AAmolecule that can be bonded to other identical molecules to form a polymer
Polymer - correct answer-
A substance that has a molecular structure consisting chiefly or entirely of a large number of similar uni
ts bonded together
Polysaccharide - correct answer-The polymers of sugars and have storage and structural roles
Starch - correct answer-A storage polysaccharide of plants, and consists entirely of glucose monomers
