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WorksheetsChap. 2 Quiz Essentials of Healthcare
Total questions: 20
Worksheet time: 10mins
Which of the following will most likely cause an enzyme to denature?
Heat
Acidity
Neither heat, nor acidity
both heat and acidity
Which type of chemical reaction involves building larger molecules from smaller subunits?
Decomposition
Synthesis
Exchange
Reversible
Which level of protein structure is determined by the sequence of amino acids?
Primary
Secondary
Tertiary
Quaternary
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
Which property of water allows it to dissolve salts and sugars effectively?
Cohesion
High heat capacity
Polarity
Low viscosity
Which inorganic compound makes up the majority of the body's mass?
Salts
Water
Oxygen
Calcium phosphate
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
Proteins are made of:
Monosaccharides
Fatty acids
Amino acids
Nucleotides
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
Electrolytes are important because they:
Store genetic information
Conduct electrical currents in the body
Form peptide bonds in proteins
Neutralize acids
The specific area of an enzyme where the substrate binds is called the:
Active site
Binding groove
Enzyme pocket
Catalyst zone
DNA and RNA are examples of:
Proteins
Nucleic acids
Lipids
Carbohydrates
Which lipid is the main structural component of cell membranes?
Triglyceride
Steroid
Phospholipid
Cholesterol
Which macromolecule is the primary source of short-term energy for cells?
Lipids
Carbohydrates
Proteins
Nucleic acids
Which type of reaction can proceed in both directions, depending on conditions?
Synthesis
Decomposition
Exchange
Reversible
Which inorganic ion is critical for muscle contraction and blood clotting?
Sodium
Potassium
Calcium
Sulfur
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
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
