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