Download Bio A Ch 2 review

Bio Ch 2
review
In groups of three or four, you will
decide on the correct answer for
points.
Which of the following is the basic unit of
matter?
A. Cell
B. Atom
C. Electron
D. Neutron
If an atom has 3 protons and 4 neutrons, its
atomic number is __________.
A. 1
B. 3
C. 4
D. 7
Fluorine is an atom that has an atomic # of 9
and an atomic mass of 19. How many
neutrons does this atom have?
A. 9
B. 10
C. 19
D. 28
A pure substance made of just one kind of
atom is called a(an) ________________.
element
What particle is not included in the nucleus
of an atom?
A. Proton
B. Electron
C. Neutron
D. All of the above
What is the most abundant compound in
most living things?
A. carbon dioxide
B. hydrochloric acid
C. water
D. iodine
In a covalent bond, electrons are
____________________.
Shared
Monosaccharides and polysaccharides are
A. Carbohydrates
B. lipids
C. nucleic acids
D. proteins
A ____________ is a substance with two or
more elements in a definite proportion.
A. nucleic acid
B. compound
C. ionic bond
D. suspension
When a molecule has an uneven distribution
of electrons is called ______________.
polar
____________ isotopes are used to
determine the age of rocks and fossils,
treat cancer, and trace the movements of
substances in organisms
Radioactive
The organic molecules that provide
organisms with energy are
A. carbohydrates
B. lipids
C. nucleic acids
D. proteins
A monosaccharide would make the indicator
Benedict’s solution this color:
__________________.
orange
The electrons in the outermost cloud or
orbital of an atom are known as
___________ electrons.
valence
Fats, oils and waxes are example of
A. carbohydrates
B. lipids
C. nucleic acids
D. proteins
What is an evenly distributed mixture of two
or more substances
A. suspension
B. indicator
C. catalyst
D. solution
Iodine is an indicator that turns black in the
presence of a(an) ________________.
Starch or
polysaccharide
A base has a pH __________________
than 7.
More/greater
____________________ are the monomers
of carbohydrates.
A. amino acids
B. polymers
C. nucleotides
D. monosaccharides
When making a solution of Country Time
lemonade, the lemonade mix is the
___________________.
solute
Which of the following is a function of
proteins?
A. fight disease
B. energy storage
C. make up cell membranes
D. insulation
The compounds that appear on the right of a
chemical equation are called the
________________.
products
A substance that increases the rate of
chemical reactions is known as a(n)
A. lipid
B. catalyst
C. indicator
D. suspension
A protein that is a biological catalyst is a(an)
A. steroid
B. Iodine
C. enzyme
D. substrate
The process of putting monomers together
into polymers is known as
_________________.
polymerization
Two elements that have the same number of
protons but different number of neutrons
are
A. Isotopes
B. Ions
C. Solutes
D. suspensions
A reaction that requires energy to occur is
known as ________________________.
endothermic
The biological molecule that stores genetic
information are known as
A. carbohydrates
B. lipids
C. nucleic acids
D. proteins
What measures the concentration of
hydrogen ions in a solution?
_____________________
pH scale
Organic molecules that turn Biuret reagent
violet are
A. carbohydrates
B. lipids
C. nucleic acids
D. proteins
The active site is where an enzyme and the
_____________________ bind together.
A. isotope
B. substrate
C. lipid
D. proteins
____________________ are the monomers
of proteins.
A. amino acids
B. polymers
C. nucleotides
D. monosaccharides