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Bio 156 Exam 1 Study Guide with complete solutions
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Bio 156 Exam 1 Study Guide with complete solutions
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Bio 156 Exam 1 Study Guide withcomplete solutions
In conducting proper experiment, which of the following would you NOT do? - Answer -
Change the data that you collect so that it matches how you thought the experiment
would come out.
The smallest unit of an element is: - Answer -an atom
Sucrose is formed: - Answer -from two monosaccharides by dehydration synthesis
The tree in your backyard is home to two cardinals, a colony of ants, a wasp's nest, two
squirrels, and millions of bacteria. Together, all of these organisms represent: - Answer
-a community
A scientist examining a group of cells under the microscope notices the presence of
nuclei within these cells. Chemical tests reveal that each cell is photosynthetic and is
surrounded by a wall composed of cellulose. These cells must come from an organism
that is a member of the Kingdom: - Answer -Plantae
The nucleus of an atom contains: - Answer -protons and neutrons
A(n)______ forms when two atoms share electrons. - Answer -covalent bond
A diet high in animal products may increase the risk of artherosclerosis. This is
because: - Answer -most animal fats are saturated and some animal products contain
trans fats.
Life is organized in hierarchical fashion. Which one of the following sequences
illustrates that hierarchy as it increases in complexity? - Answer -molecule-cell-tissue-
organ-organ system-organism-population-community-ecosystem
In plants, the transport of water from roots to leaves against the force of gravity is
possible due to this property of water: - Answer -Cohesion
Which one of the following lists contains only polysaccharides? - Answer -cellulose,
starch, and glycogen
, The ability of water molecules to form hydrogen bonds with other water molecules is
critical to: - Answer --evaporative cooling of ski surfaces
- the movement of water from roots of a tree to leaves
- the milder temperatures of coastal regions compared to inland areas
- the ability of certain insects to walk on the surface of the water
The ultimate source of energy flowing into nearly all ecosystems is: - Answer -sunlight
A hypothesis is: - Answer -a tentative answer to some question
Many names for sugars end in the suffix: - Answer --ose
DNA differs from RNA because DNA: - Answer -contains thymine in place of uracil
Carbon is able to form an immense diversity of organic molecules because of carbon's:
- Answer -- tendency to form covalent bonds
- ability to bond with up to four other atoms
- capacity to form single and double bonds
- ability to bond together to form extensive, branched, or unbranched carbon skeletons.
The formation of systems typically results in the appearance of novel characteristics
called: - Answer -emergent properties
As ice melts: - Answer -hydrogen bonds are broken
Compared to a solution of pH3, a solution of pH1 is: - Answer -100 times more acidic
Glucose molecules are to starch as _______ are to proteins. - Answer -amino acids
Your instructor asks you to look into your microscope to see a prokaryotic cell. You will
be looking for a cell that: - Answer -has a membrane, but no nucleus
Genetic information is encoded in the: - Answer -sequence of nucleotides in DNA
Which of the following statements about radioactive isotopes is/are true? - Answer -The
energy emitted by radioactive isotopes can break chemical bonds and cause molecular
damage in cells.
Which one of the following statements is NOT consistent with Darwin's mechanism of
natural selection: - Answer -Individual organisms exhibit genetic change during their life
spans to better fit their environment.
The term biodiversity refers to: - Answer -the tremendous variety of life all around us on
Earth
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