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WorksheetsAP Biology Unit 1 Review
Total questions: 28
Worksheet time: 14mins
Which of the following does not result from hydrogen bonding in water molecules?
Cohesion
Adhesion
Surface Tension
Dissolving fats
Why is water considered polar?
Nonpolar covalent bonds in structure
Ionic bonds in structure
Polar covalent bonds in structure
Hydrophobic interaction in structure
Which macromolecule(s) have nitrogen?
Carbohydrates
Proteins
Nucleic Acids
Nucleic Acids & Proteins
Which macromolecule(s) have phosphorus?
Carbohydrates
Proteins
Nucleic Acids
Fats
Which macromolecule(s) have sulfur?
Carbohydrates
Proteins
Nucleic Acids
Fats
Describes the forming of a bond between monomers with the removal of a water molecule.
Hydrolysis
Dehydration
Describes the breaking of a bond within a polymer using water.
Hydrolysis
Dehydration
Which of the following is NOT in the monomer of a nucleic acid?
pentose sugar
nitrogenous base
phosphate
amino acid
Which of the following is NOT in the monomer of a protein?
Amine Group
R Group
Carboxyl Group
Nitrogenous Base
Describe the orientation of the phospholipids in the membrane.
Phospholipids orient in bilayer with hydrophilic heads on exterior
Phospholipids orient in monolayer with hydrophilic head on extracellular
Phospholipids orient in bilayer with hydrophobic tails on exterior
Phospholipids orient in monolayer with hydrophobic tails on extracellular
Identify the pairing and number of bonds in DNA double helix
A pairs with T (2 bonds) & G pairs with C (3 bonds)
A pairs with G (2 bonds) & T pairs with C (3 bonds)
A pairs with T (3 bonds) & G pairs with C (2 bonds)
A pairs with G (3 bonds) & T pairs with C (2 bonds)
What component of the current polypeptide is the next amino acid added to, forming the peptide bond?
amino group
hydrogen
carboxyl group
R groups
Which protein involves R group bonding to form the final three dimensional structure?
primary
secondary
tertiary
quaternary
Which protein structure involves the peptide bonds between amino acids?
primary
secondary
tertiary
quaternary
DNA and RNA differ on many qualities, which of the following is NOT a difference?
Sugar
Nitrogenous Base
Phosphate Group
Strandedness
A covalent chemical bond is one in which
electrons are removed from one atom and transferred to another atom so that the two atoms become oppositely charged.
protons and neutrons are shared by two atoms so as to satisfy the requirements of both atoms.
outer-shell electrons of two atoms are shared so as to satisfactorily fill the outer electron shells of both atoms.
What gives rise to the cohesiveness of water molecules?
hydrophobic interactions
nonpolar covalent bonds
ionic bonds
hydrogen bonds
Which of the following solutions has the greatest concentration of hydrogen ions [H+]?
gastric juice at pH 2
vinegar at pH 3
tomato juice at pH 4
Pure, freshly-distilled water has a pH of 7. This means that
there are no H+ ions in the water.
the concentration of H+ ions in the water equals the concentration of OH- ions in the water.
the concentration of H+ ions in the water is 7 times the concentration of OH- ions in the water.
Which of the following statements is/are true regarding the chemical reaction illustrated in the Figure?
It is a hydrolysis reaction.
It results in a peptide bond.
It joins two fatty acids together.
Which type of chemical bond involves the transfer of electrons from one atom to another, resulting in oppositely charged ions that are attracted to each other?
Covalent bond
Ionic bond
Hydrogen bond
Van der Waals interactions
Which of the following molecules is a carbohydrate?
Palmitic Acid
Collagen
Insulin
Lactose
Which of the following statements correctly describes the difference between saturated and unsaturated fats?
Saturated fats tend to be solid at room temperature; unsaturated fats are liquid at room temperature
Saturated fats are cannot pack together closely because of their bent structure; unsaturated fats can pack together because they are flat
Saturated fats come from plants and fish; unsaturated fats are from animals (except fish)
Saturated fats are considered “healthy” fats; unsaturated fats may contribute to cardiovascular disease
What determines the function of a protein?
The number of peptide bonds
The types of side chains
The protein’s specific structure
The tissue that produces the protein
