ap biology review session 1. which of the following levels of life’s hierarchy is not appropriate...
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AP Biology review session 1
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Which of the following levels of life’s hierarchy is not appropriate when referring to two of life’s domains, Archaea and Bacteria?
The population level. The organism level. The organ level. The molecular level.
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Darwin proposed the theory of natural selection. For the most part, natural selection acts as a filtering agent at the ___________level of life’s hierarchy.
Community Population Individual Organ
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Not all scientific discoveries are reached through the “scientific method.” Which of the following would best be described as discovery science?
Sequencing the human genome. Describing a new bird species from the Philippines. A project to find preserved specimens of the
probably extinct Rocky Mountain locust frozen in glaciers .
All of the above.
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The reactive properties or chemical behavior of an atom mostly depend on the number of
the electrons in each electron shell of the atom. the neutrons found in the nucleus. the filled electron shells. the electrons in the outer electron shell of the atom.
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Water molecules form hydrogen bonds because
the water molecule is polar. the oxygen molecule is
positively charged. the water molecule forms a
tetrahedron. the hydrogen atoms are
negatively charged.
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This is the general equation for photosynthesis—the process of capturing sunlight energy and converting it to chemical energy. Which of the following are the reactants of this reaction?
C6H12O6 and O2.
CO2 and H2O.
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Earth’s oceans are immense. Small floating plants called phytoplankton contribute to ocean productivity. As ocean productivity (the rate of photosynthesis) goes up, what would you predict would happen to global carbon dioxide levels?
CO2 levels should also go up.
CO2 levels should go down
CO2 levels should remain constant.
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The four most common elements in living organisms are
a. C, H, O, Fe
b. C, H, O, Ca
c. C, N O, Na
d. C, H, O, N
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A radioactive isotope has a nucleus that ______________.
a. is stable
b. decays spontaneously
c. has more protons than the common variant of the element
d. has more electrons than the common variant of the element
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An uncharged atom of argon has an atomic number of 18 and an atomic mass of 40. This atom has _________ protons, _______ neutrons, and __________electrons.
a. 18…22…18
b. 22…18…18
c. 18…40…18
d. 40…20…22
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Which of the following is an example of a polysaccharide?
a. glucose
b. starch
c. maltose
d. fructose
ANSWER
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Lactose intolerance is the inability to properly _______________.
a. produce milk proteins
b. produce lactose
c. digest cellulose
d. digest lactose
ANSWER
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What are saturated fats saturated with?
a. phosphorous
b. nitrogen
c. carbon
d. hydrogen
ANSWER
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What name is given to the following reaction?
glucose + glucose maltose + water
a. dehydration reaction
b. hydrolysis
c. denaturization
d. gluconeogenesis
ANSWER
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electron transferbetween atoms
creates
electron sharingbetween atoms
creates
ChemicalBonds
atomic number ofeach element
water
nonpolarcovalent bonds
(e)ions
(f) (g)
(h)
attraction betweenions creates
unequalsharing creates
can lead toexample is
equalsharing creates
has importantqualities due
to polarity and
have positivelycharged have neutral
have negativelycharged
number in outershell determines
formation of
number maydiffer in
number presentequals
(a)
Atoms
(b) (c)
(d)
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1. Describe the importance of chemical elements to living organisms
2. Explain the formation of compounds
3. Describe the structure of an atom
4. Distinguish between ionic, hydrogen, and covalent bonds
5. List and define the life-supporting properties of water
6. Explain the pH scale and the formation of acid and base solutions
7. Define a chemical reaction and explain how it changes the composition of matter
Copyright © 2009 Pearson Education, Inc.
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1. Discuss the importance of carbon to life’s molecular diversity
2. Describe the chemical groups that are important to life
3. Explain how a cell can make a variety of large molecules from a small set of molecules
4. Define monosaccharides, disaccharides, and polysaccharides and explain their functions
5. Define lipids, phospholipids, and steroids and explain their functions
6. Describe the chemical structure of proteins and their importance to cells
7. Describe the chemical structure of nucleic acids and how they relate to inheritance
Copyright © 2009 Pearson Education, Inc.