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WorksheetsHonors Biology Chapter 2 Test Review
Total questions: 30
Worksheet time: 15mins
What are added to get the mass number of an atom?
Adhesion
Covalent bonds
Protons and neutrons
Acidic
How do you write the isotope of an atom?
Name of the element with the mass number behind it
Atoms of the same element with a different number of neutrons
The number of protons in that atom
Poisonous, greenish gas, combines with sodium to form table salt, used in battles in WW1
What is an isotope?
Two atoms of hydrogen and one atom of oxygen
Atoms of the same element with a different number of neutrons
Mixture where substances are evenly spread out
Stomach acid below 7, oven cleaner above 7
What is the atomic number of an atom?
Substances that speeds up the rare of a chemical reaction
Reactions that release energy
Covalent bonds with N, O, and H
The number of protons in that atom
What is a compound?
Substances formed by chemically joining two or more elements in definite amounts
Poisonous, greenish gas, combines with sodium to form table salt, used in battles in WW1
Works best at a specific PH, are proteins, has a shape that allows it to do its job
Help fight disease, control rates of reactions, move substances into and out of cells
What atoms makes up a molecule of water?
Suspension
Electrons that are available to form bonds
Two atoms of hydrogen and one atom of oxygen
Bases
What are some characteristics of chlorine?
Help fight disease, control rates of reactions, move substances into and out of cells
Poisonous, greenish gas, combines with sodium to form table salt, used in battles in WW1
Oxygen side slightly negative, hydrogen side slightly positive
Covalent bonds with N, O, and H
What type of bond involves sharing electrons?
Acidic
Adhesion
Covalent bonds
Suspension
What type of bond forms molecule?
Suspension bonds
Adhesion bonds
Covalent bonds
Acidic bonds
What are valence electrons?
The energy needed to get a reaction started
Substance that speeds up the rate of a chemical reaction
Mixture where substances are evenly spread out
Electrons that are available to form bonds
How does a positive ion form from a neutral atom?
By losing electrons
Absorbs energy
By losing bases
By losing acidic
What force causes a meniscus to form in a graduated cylinder?
Suspension
Adhesion
Bases
Acidic
Which sides of water molecule have which charge?
Name of the element with the mass number behind it
Electrons that are available to form bonds
Oxygen side slightly negative, hydrogen side slightly positive
Stomach acid below 7, oven cleaner above 7
What charge is the oxygen side of a water molecule?
By losing electrons
Hydrogen side slightly positive
Oxygen side slightly negative
Slightly negative
What is a solution?
Process that changes one set of chemicals into another set of chemicals
Mixture where substances are evenly spread out
Covalent bonds with N, O, and H
4
What would a mixture of cells and water be called?
Suspension
Adhesion
Acidic
Bases
What are the pH(s) of stomach acid and oven cleaner?
Mixture where substances are evenly spread out
Reactions that release energy
Change of speed
Stomach acid below 7, oven cleaner above 7
Where is rainfall placed on the pH scale?
Bases
Suspension
Acidic
Adhesion
What type of solution has more OH - than H + ions?
Adhesion
Bases
Acidic
Suspension
What types of bonds does Carbon form with other atoms?
Covalent bonds with N, O, and H
Mixture where substances are evenly spread out
Electrons that are available to form bonds
3
How many covalent bonds can a carbon atom form at the same time?
5
1
7
4
What are the monomers for each group of organic macromolecules?
Carbohydrates - amino acids, Lipids - fatty acids and glycerol, Proteins - Amino acids, Nucleic Acids - glucose
Carbohydrates - Fatty acids and glycerol, Lipids - Amino acids, Proteins - nucleotides, Nucleic - Glucose
Carbohydrates - Amino Acids, Lipids - Nucleotides, Proteins - Glucose, Nucleic - Fatty acids and glycerol
Carbohydrates - glucose, Lipids - Fatty acids and glycerol, Proteins - Amino acids, Nucleic acids - Nucleotides
What are the functions of proteins?
Covalent bonds with N, O, and H
Process that changes one set of chemicals into another set of chemicals
Help fight disease, control rates of reactions, move substances into and out of cells
Electrons that are available to form bonds
What is chemical reaction?
Process that changes one set of chemicals into another set of chemicals
Change of speed
Absorbs energy
Reactions that release energy
What is activation energy?
Change of speed
Absorbs energy
Reactions that release energy
The energy needed to get a reaction started
What type of chemical reaction often occurs spontaneously?
Absorbs energy
Reactions that release energy
The energy needed to get a reaction started
Substance that speeds up the rate of a chemical reaction
If a reaction releases energy in one direction, what happens to energy if the reaction happens in the opposite direction?
Change of speed
Reactions that releases energy
Absorbs energy
Loses electrons
What are some characteristics of enzymes?
Works best at a specific PH, are proteins, has a shape that allows it to do its job
Oxygen side slightly negative, Hydrogen side slightly positive
Stomach acid below 7, oven cleaner above 7
Atoms of the same element with a different number of neutrons
What is a catalyst
Helps fight disease, control rates of reactions, move substances into and out of cells
Substance that speeds up the rate of a chemical reaction
Covalent bonds with N, O, and H
Mixture where substances are evenly spread out
What affect do catalyst have on the speed of reactions?
Reactions that release energy
Absorbs energy
Change of speed
The energy needed to get a reaction started
