10/18/25, 6:11 PM BPK 105 Midterm
BPK 105 Midterm Exam Questions and Answers SAT 10-Aug
Fully Solved 100%; Simon Fraser University 2025-2026
-investigates the structure of the body
Anatomy -relationship between the structure of a body part and it's
function
-can be systemic or regional
-deals with the process or functions of living things
Goals:
Physiology
(1) to understand and foreshadow the body's natural responses to
changes
understand how the body controls and maintains their
(2)
conditions
-group of organs that is classified as a unit due to their similar
function
Organ Systems
-Muscular, Nervous, Endocrine, Cardiovascular,
Lymphatic, Respiratory, Digestive, and Urinary Systems
1) Organization
2) Metabolism
3) Responsiveness
6 Characteristics of Life 4) Growth
5) Development
Reproduction
6)
Existence and maintenance of a relatively constant
Homeostasis environment within the body despite fluctuations in the
external/internal environment; includes temperature,
volume and chemical content
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,10/18/25, 6:11 PM BPK 105 Midterm
Deviation from the set point is made smaller or is
resisted; maintains variation within a normal range
without preventing it.
Maintains
Negative Feedback
homeostasis
Three
Components:
-Receptor
-Control Centre
-Effector
Ionic Bonds Transfer of electrons between atoms; creates oppositely charged
ions
Electrons are unequally shared between two atoms;
Polar Covalent Bonds
results in a slightly positive charge on one side of the
molecule and a slightly negative charge on the other
side
Equal sharing of electrons between two atoms; has an
Nonpolar Covalent Bonds
even distribution of charges among the molecule
Positive end of a polar molecule is attracted to the
Hydrogen Bonds negative end of another polar molecule, and vice
versa; not a chemical bond and is weaker than
ionic/covalent bonds
Compound Substance resulting from the chemical combination of 2+ different
types of atoms
-Process of ionic compounds dissolving in water causing
their ions to separate from each other
Dissociation -Positively charged ions are attracted to the negative
ends of the water molecule and vice versa
-Dissociated ions are called electrolytes
-Anabolism
Synthesis
-Two or more reactants combine to form a larger and more
complex product
-Catabolism
Decomposition
/ 2/56
,10/18/25, 6:11 PM BPK 105 Midterm
-Reactants are broken down into smaller, and less complex
products
Exchange reactions -Reactants are decomposed then resynthesized with its
counterparts
1. Reactants
Factors That Affect the Rate 2. Concentration
of Chemical Rxn 3. Temperature
4. Catalysts
pH Scale Indicates the H+ concentration of a solution
Acidity Greater concentration of H+ greater than OH-, has a pH less than
7.0
Basic/Alkaline Concentration of OH- greater than H+, has a pH greater than 7.0
A chemical used to resist the changes in pH when an
Buffer acid or a base is added to a solution that has the
buffer in it; binds to the H+/OH- preventing the ions
from causing a shift in the pH
A chemical reaction that can proceed from reactants to
Reversible Reaction
products and from products to reactants
The state in which a chemical reaction's rate of product
Equilibrium
formation is equal to the rate of reactant formation
/ 3/56
, 10/18/25, 6:11 PM BPK 105 Midterm
1) Stabilizing Body Temperature
2) Protection
4 Properties of H2O
3) Facilitating Chemical Reactions
4)Transporting Substances
-Consist of monosaccharides
Carbohydrates -Can be stored and broken down and used as an energy source
-2:1 ratio of H to O for each C atom
Monosaccharides Building block of carbs; forms longer chains of carbs
-2 sugars
Disaccharides
- 2 monosaccharides are joined by a covalent bond
-Many monosaccharides bound in long chains
Polysaccharides
-Glycogen, cellulose
-Consists of glycerol and fatty acids; hydroxyl and carboxyl
groups
-Only dissolves in nonpolar solvents
Lipids
-Organic; composes of phosphorus and nitrogen
-Stores energy
Triglycerides Most common type of fat molecule
Saturated Fatty Acids Contains only single covalent bonds between carbon atoms
Has 1+ double covalent bonds
Unsaturated Fatty Acids
-Monosaturated
-Polyunsaturated
Trans Fatty Acids Unsaturated fats that have been chemically altered by the
addition of H atoms
-Component of cell structure and membrane
Phospholipids -Hounded to a phosphorus containing molecule instead of
glycerol
-Has a hydrophobic and hydrophilic end
/ 4/56
BPK 105 Midterm Exam Questions and Answers SAT 10-Aug
Fully Solved 100%; Simon Fraser University 2025-2026
-investigates the structure of the body
Anatomy -relationship between the structure of a body part and it's
function
-can be systemic or regional
-deals with the process or functions of living things
Goals:
Physiology
(1) to understand and foreshadow the body's natural responses to
changes
understand how the body controls and maintains their
(2)
conditions
-group of organs that is classified as a unit due to their similar
function
Organ Systems
-Muscular, Nervous, Endocrine, Cardiovascular,
Lymphatic, Respiratory, Digestive, and Urinary Systems
1) Organization
2) Metabolism
3) Responsiveness
6 Characteristics of Life 4) Growth
5) Development
Reproduction
6)
Existence and maintenance of a relatively constant
Homeostasis environment within the body despite fluctuations in the
external/internal environment; includes temperature,
volume and chemical content
/ 1/56
,10/18/25, 6:11 PM BPK 105 Midterm
Deviation from the set point is made smaller or is
resisted; maintains variation within a normal range
without preventing it.
Maintains
Negative Feedback
homeostasis
Three
Components:
-Receptor
-Control Centre
-Effector
Ionic Bonds Transfer of electrons between atoms; creates oppositely charged
ions
Electrons are unequally shared between two atoms;
Polar Covalent Bonds
results in a slightly positive charge on one side of the
molecule and a slightly negative charge on the other
side
Equal sharing of electrons between two atoms; has an
Nonpolar Covalent Bonds
even distribution of charges among the molecule
Positive end of a polar molecule is attracted to the
Hydrogen Bonds negative end of another polar molecule, and vice
versa; not a chemical bond and is weaker than
ionic/covalent bonds
Compound Substance resulting from the chemical combination of 2+ different
types of atoms
-Process of ionic compounds dissolving in water causing
their ions to separate from each other
Dissociation -Positively charged ions are attracted to the negative
ends of the water molecule and vice versa
-Dissociated ions are called electrolytes
-Anabolism
Synthesis
-Two or more reactants combine to form a larger and more
complex product
-Catabolism
Decomposition
/ 2/56
,10/18/25, 6:11 PM BPK 105 Midterm
-Reactants are broken down into smaller, and less complex
products
Exchange reactions -Reactants are decomposed then resynthesized with its
counterparts
1. Reactants
Factors That Affect the Rate 2. Concentration
of Chemical Rxn 3. Temperature
4. Catalysts
pH Scale Indicates the H+ concentration of a solution
Acidity Greater concentration of H+ greater than OH-, has a pH less than
7.0
Basic/Alkaline Concentration of OH- greater than H+, has a pH greater than 7.0
A chemical used to resist the changes in pH when an
Buffer acid or a base is added to a solution that has the
buffer in it; binds to the H+/OH- preventing the ions
from causing a shift in the pH
A chemical reaction that can proceed from reactants to
Reversible Reaction
products and from products to reactants
The state in which a chemical reaction's rate of product
Equilibrium
formation is equal to the rate of reactant formation
/ 3/56
, 10/18/25, 6:11 PM BPK 105 Midterm
1) Stabilizing Body Temperature
2) Protection
4 Properties of H2O
3) Facilitating Chemical Reactions
4)Transporting Substances
-Consist of monosaccharides
Carbohydrates -Can be stored and broken down and used as an energy source
-2:1 ratio of H to O for each C atom
Monosaccharides Building block of carbs; forms longer chains of carbs
-2 sugars
Disaccharides
- 2 monosaccharides are joined by a covalent bond
-Many monosaccharides bound in long chains
Polysaccharides
-Glycogen, cellulose
-Consists of glycerol and fatty acids; hydroxyl and carboxyl
groups
-Only dissolves in nonpolar solvents
Lipids
-Organic; composes of phosphorus and nitrogen
-Stores energy
Triglycerides Most common type of fat molecule
Saturated Fatty Acids Contains only single covalent bonds between carbon atoms
Has 1+ double covalent bonds
Unsaturated Fatty Acids
-Monosaturated
-Polyunsaturated
Trans Fatty Acids Unsaturated fats that have been chemically altered by the
addition of H atoms
-Component of cell structure and membrane
Phospholipids -Hounded to a phosphorus containing molecule instead of
glycerol
-Has a hydrophobic and hydrophilic end
/ 4/56
