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Biology Cumulative Final Exam/100 questions with answers
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Biology Cumulative Final Exam/100questions with answers
When looking through a light microscope at a plant leaf, you notice small
green organelles moving around in the cytoplasm of every cell. What
organelle are you most likely seeing? - -Chloroplasts
- Electrons are found... - -In one or more shells that surround the atom's
nucleus
- The figure below represents the steps in the scientific method. Dr. JoAnn
Burkholder believed the wrong stains of "Pfiesteria" were used by
independent laboratories looking for fish-killing toxin. What step in the figure
above would her contention represent? - -Hypothesis
- Ionic bonds... - -Form between atoms that develop opposite charges
- A molecule composed of amino acids is a... - -protein
- The smallest unit of a chemical element that displays the properties of that
element is a(n)... - -atom
- Based on the illustration below, it could be predicted that ice floats on
liquid water because... - -the distance between water molecules in ice is
greater than in liquid
- Homeostasis is the ability to detect and correct disturbances that develop
within an organism; which of the following illustrates homeostasis? - -All of
the above
- The smooth ER... - -is the site where lipids destined for other cellular
compartments are manufactured
- The sugar glucose has an important role... - -in short-term energy storage
- Once supported by a predictable experimental outcome, a scientific
hypothesis... - -still cannot be considered to have been proven true
- The outer electron shell of a nitrogen atom can hold up to eight electrons,
but contains only five. As a result, nitrogen can form_____covalent bonds. - -
3
, - DNA is one of the features common to all known forms of life; - -it is the
blueprint that guides the growth, development, behavior, and reproduction
of all organisms.
- How many different elements would be needed to construct a molecule of
C8H10N4O2? - -4
- Which of the following statements is false? - -Eukaryotes use PROTEINS as
the hereditary genetic material.
- Although it seems contradictory, science cannot prove a hypothesis to be
true. This is because... - -future experiments or discoveries may provide
data that refutes the hypothesis
- Consider each of the following true statements; which statement supports
the theory that all living organisms descended from one common ancestor? -
-All living organisms use DNA as their hereditary material
- An atom of the element with the atomic number 11 (which can form an
ion) ALWAYS contains 11... - -protons
- An oil is a lipid that is ____ at room temperature. - -liquid
- Chemists often represent the structure of atoms using p, n, and e to
indicate the number of protons, neutrons, and electrons; which atom would
have an atomic weight of 30? - -15p, 15n, 15 e
- Oil and water do not mix together well because... - -water is polar and oil
is nonpolar
- Which of the following combinations of atoms would form ionic bonds? - -
Na+ and Cl-
- Which of the following is NOT a role of fatty acids in living organisms? - -
Storage of genetic information
- Which of the following statements is true? - -The scientific method can
help people make informed medical and environmental decisions.
- The boundary structure that physically defines a cell is the... - -plasma
membrane
- Which of the following would be the best analogy for the function of the
Golgi apparatus? - -a worker in a factory who places labels on products and
then packs them into a shipping box
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