WorksheetsExam #2 Review #1
Total questions: 20
Worksheet time: 10mins
What is an isotope?
Same number of protons and electrons
Different number of protons, same number of electrons
Same number of protons and neutrons
same number of protons, different number of neutrons
What is an ionic bond?
Involves the sharing of valence electrons
Involves the sharing of neutrons
Involves the transferring of electrons
Involves the transferring of valence electrons
What is a covalent bond?
Involves the sharing of electrons
Involves the sharing of valence electrons
Involves the transferring of neutrons
Involves the transferring of valence electrons
What is an example of intermolecular forces?
Ionic bond
Covalent bond
Hydrogen bond
Phosphodiester bonds
What are the two parts to every solution?
Solvent
Suspension
Solute
Solid
Solvent
Mixture
Solute
Solvent
Water can react to form two ions. What are the two ions?
Sodium Ion
Chloride Ion
Calcium Ion
Carbonate Ion
Hydrogen Ion
Hydroxide Ion
Hydronium Ion
Hydroxide Ion
Acidic solutions have a high concentration of
Hydronium ions
Hydrogen ions
Hydroxide ions
Dihydrogen Ions
Basic/Alkaline solutions have a high concentration of which Ion?
Hydroxide Ions
Hydronium Ions
Hydrogen Ions
Dihydrogen Ions
Organic compounds are compounds containing which element?
Hydrogen
Oxygen
Carbon
Flourine
Which of the following is not classified as a macromolecule?
Protein
Lipid
Amino acids
Carbohydrate
Which of the following defines monosaccharides?
Complex carbohydrates made up of multiple sugar units
Long chains of amino acids that polymerize to form proteins
A type of lipid composed of long chains of fatty acids bound to a glycerol backbone
The simplest form of carbohydrates and cannot be further broken down
Lipids are hydrophobic due to their long hydrocarbon tails. What does hydrophobic mean?
Attracted to hydrogen
Repels water
Repels hydrogen
Attracted to water
Lipids are important components of which cell structure?
Nucleus
Cell wall
Cell membrane
Cytoplasm
Nucleic acids are composed of monomers called nucleotides. What are the components of each nucleotide?
Sugar
Glycerol
Nitrogenous base
Phosphate
What is the only nitrogenous base that is found in RNA but not in DNA?
Uracil
Cytosine
Guanine
Thymine
What type of interaction holds DNA together at the nucleotides?
Ionic bond
Covalent bond
Hydrogen bond
Double covalent bond
Proteins are made up of monomers called
Amino acids
Monosaccharides
Fatty acids
Nucleic acids
Enzymes work by...
Increasing activation energy
Stabilizing activation energy
Destabilizing activation energy
Decreasing activation energy
If an enzyme is placed in a temperature or pH that is too high or too low, the enzyme will...
Denature:
Change shape and effect substrate binding
Denoture:
Change shape and increase active site interactions
Depature:
Shape will remain constant and decrease substrate binding
Dehydrate:
Change shape and has no effect on substrate binding
What is it called when an enzyme interacts with a substrate at its active site?
Enzyme-binding complex
Enzyme-catalyst complex
Enzyme-substrate complex
Reaction-substrate complex
