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WorksheetsChap. 2 Quiz Anatomy and Physiology
Total questions: 28
Worksheet time: 18mins
Which type of chemical reaction involves building larger molecules from smaller subunits?
Decomposition
Synthesis
Exchange
Reversible
Breaking down glycogen into glucose is an example of:
Synthesis reaction
Decomposition reaction
Exchange reaction
Neutralization reaction
In an exchange reaction,
Atoms are combined to form a larger molecule
A molecule is split into smaller parts
Parts of molecules are swapped between reactants
Energy is released as heat
Which type of reaction can proceed in both directions, depending on conditions?
Synthesis
Decomposition
Exchange
Reversible
The role of an enzyme is to:
Provide energy for a reaction
Change the products of a reaction
Lower the activation energy needed for a reaction
Alter the pH of a reaction
The specific area of an enzyme where the substrate binds is called the:
Active site
Binding groove
Enzyme pocket
Catalyst zone
Which of the following will most likely cause an enzyme to denature?
Heat
Acidity
Neither heat, nor acidity
both heat and acidity
The pH scale is a measure of:
Enzyme concentration
Hydrogen ion concentration
Salt content of a solution
Buffering capacity
A solution with a pH of 8 is considered:
Strongly acidic
Weakly acidic
Neutral
Basic
Which of the following is the most important buffer system in maintaining blood pH?
Phosphate buffer
Bicarbonate buffer
Protein buffer
Sodium-potassium buffer
Which inorganic compound makes up the majority of the body's mass?
Salts
Water
Oxygen
Calcium phosphate
Which property of water allows it to dissolve salts and sugars effectively?
Cohesion
High heat capacity
Polarity
Low viscosity
Electrolytes are important because they:
Store genetic information
Conduct electrical currents in the body
Form peptide bonds in proteins
Neutralize acids
Which inorganic ion is critical for muscle contraction and blood clotting?
Sodium
Potassium
Calcium
Sulfur
Which macromolecule is the primary source of short-term energy for cells?
Lipids
Carbohydrates
Proteins
Nucleic acids
Which lipid is the main structural component of cell membranes?
Triglyceride
Steroid
Phospholipid
Cholesterol
Proteins are made of:
Monosaccharides
Fatty acids
Amino acids
Nucleotides
Which level of protein structure is determined by the sequence of amino acids?
Primary
Secondary
Tertiary
Quaternary
DNA and RNA are examples of:
Proteins
Nucleic acids
Lipids
Carbohydrates
The immediate source of energy for most cellular work is:
Glucose
ATP
Glycogen
Fatty acids
Directions: Match each term in Column A with its correct description in Column B. Write the letter of the correct answer.
Building block of proteins
Joins smaller molecules into larger ones
Catalyst that speeds up chemical reactions
Splits large molecules into smaller units
Physiological blood pH
Catalyst that speeds up chemical reactions
Energy-storage lipid composed of glycerol and three fatty acids
Binding region on an enzyme for the substrate
Joins smaller molecules into larger ones
Physiological blood pH
Match the following
Synthesis Reaction
A reaction where two or more substances combine to form a new compound.
decomposition Reaction
A reaction where a compound breaks down into simpler substances.
Enzyme
A protein that acts as a catalyst in biochemical reactions.
Active Site
where a substrate binds
pH
measure of H+ concentration
What is the main function of carbohydrates in the body?
Act as enzymes
Serve as a primary energy source
Provide structural support
Store genetic information
Match the following
amino acid
Building blocks of proteins
R- group
Side chain of an amino acid
Protein
Made of amino acids
Protein folding
The process of forming a protein structure
Essential amino acids
Cannot be synthesized by the body
Match the following
monosaccharides
simple sugars
Disaccharides
two sugar units
polysaccharides
many sugar units
fructose
fruit sugar
glucose
blood sugar
match the following
glycerol
alcohol component
saturated fatty acid
solid at room temp, no double bonds
unsaturated fatty acid
liquid at room temp, has double bonds
triglyceride
formed from glycerol and fatty acids
phospholipid
major component of cell membranes
what is a steroid
A steroid is an organic fatty compound with a structure of four fused carbon rings.
A steroid is a vitamin that helps with building muscle
