WorksheetsBiology Chapter 2 Test Review
Total questions: 30
Worksheet time: 53mins
What are added to get the mass number of an atom?
How do you write the isotope of an atom?
What is an isotope?
What is the atomic number of an atom?
What is a compound?
What atoms make up a molecule of water?
What are some characteristics of chlorine?
Poisonous
greenish gas
combines with sodium to form table salt
used in battles in WWI
What type of bond involves sharing electrons?
(a)
What type of bond forms molecules?
(a)
What are valence electrons?
How does a positive ion form from a neutral atom?
What force causes a meniscus to form in a graduated cylinder?
(a)
Which sides of a water molecule have which charge?
Oxygen side slightly negative
hydrogen side slightly positive
What charge is the oxygen side of a water molecule?
What is a solution?
What would a mixture of cells and water be called?
(a)
What are the pH(s) of stomach acid and oven cleaner?
Stomach acid below 7
oven cleaner above 7
Where is rainfall placed on the pH scale?
(a)
What type of solution has more OH- than H+ ions?
(a)
What type of bonds does Carbon form with other atoms?
Covalent bonds with N
O
and H
How many covalent bonds can a carbon atom form at the same time?
(a)
What are the monomers for each group of organic macromolecules?
Carbohydrates- Glucose
Lipids- Fatty acids & Glycerol
Proteins- Amino Acids
Nucleic Acids- Nucleotides
What are the functions of proteins?
Help fight disease
control rates of reactions
move substances into and out of cells
What is a chemical reaction?
What is activation energy?
What type of chemical reaction often occurs spontaneously?
If a reaction releases energy in one direction, what happens to energy if the reaction happens in the opposite direction?
(a)
What are some characteristics of enzymes?
Work best at a specific pH
are proteins
has a shape that allows it to do its job.
What is a catalyst?
What affect do catalysts have on the speed of reactions?
