Which of the following levels of biological organization is comprised of the living organism and non-living components within a large area of the Earth? - ANSWERSEcosystem
Which of the following inferences is crucial to the mechanism of natural selection? - ANSWERSIndividuals in a population of ...
Bio 1305 Final Exam Review Questions
& Answers
Which of the following levels of biological organization is comprised of the living
organism and non-living components within a large area of the Earth? -
ANSWERSEcosystem
Which of the following inferences is crucial to the mechanism of natural selection? -
ANSWERSIndividuals in a population of any species vary in heritable traits, Individuals
with heritable traits best suited to the local environment will generally produce a
disproportionate number of fertile offspring and a population of any species has the
potential to produce far more offspring than will survive.
For most atoms, when is a chemically unreactive configuration of electrons attained? -
ANSWERSWhen the atom has eight electrons in its outermost shell.
A polar covalent bond is most likely to form when... - ANSWERSOne atom is much less
electronegative
Which statement below is an accurate description of buffered aqueous solutions? -
ANSWERSThey resist change in pH by maintaining the balance of OH- and H+
Which functional groups most likely allow saccharides to solubilize in water? -
ANSWERSHydroxyl
An emergent property of water that is critical to life is... - ANSWERSNone of the above.
Frozen water has a higher density than liquid water, water has low cohesion and high
adhesion and lipid molecules form non-polar covalent bonds with water molecules.
Complex organic polymer structures in eukaryotes are possible because of which of the
following? - ANSWERSCarbon atoms have a valence of 4
Carboxyl groups are responsible for which of the following properties of organic
compounds? - ANSWERSThey act as acids in aqueous solutions
How many naturally occurring amino acids are available to be used by cells as the
building blocks of polypeptides during translation? - ANSWERS20
Nucleotides are comprised of which of the following - ANSWERS5-carbon sugar,
phosphate group and nitrogenous base
The predominant function of carbohydrates in living organisms is: - ANSWERSEnergy
storage and structural integrity
, What is the functional connection between the nucleolus, nuclear pores, and the nuclear
membrane? - ANSWERSThe nucleolus contains messenger RNA (mRNA), which
crosses the nuclear envelope through nuclear pores
A dish of animal cells was grown in the presence of radioactive phosphorous. The
phosphorous largely ended up in nucleotides inside the actively growing animal cells. In
which cellular structure(s) would you predict the majority of the radioactive phosphorous
to accumulate? - ANSWERSNucleus
You would expect a cell with an extensive Golgi apparatus to __________. -
ANSWERSSecrete large amounts of protein
The plasma membrane is referred to as "fluid mosaic" structure. Which of the following
statements about that model is true? - ANSWERSThe fluid aspect of the membrane is
due to the lateral and rotational movement of phospholipids, and embedded proteins
account for the mosaic aspect.
Which of the following statements best describes active in cells? - ANSWERSThe
source of energy for active transport of a solute up its gradient can be ATP or a voltage
gradient of a second solute across the membrane
If the entropy of a living organism is decreasing, which of the following is most likely to
be occurring simultaneously? - ANSWERSIn this situation, the second law of
thermodynamics must not apply
Molecules A and B contain 150 kcal/mol of free energy, and molecules B and C contain
110 kcal/mol of energy. In the chemical reaction A+B--> C+D, what can you conclude? -
ANSWERSThe reaction that converts A and B to C and D is exergonic; the products are
less organized than the reactants
The function of cellular respiration is to - ANSWERSextract usable energy from glucose
If the reaction of the Calvin cycle are not directly dependent on light, why do occur
during the day in C3 plants? - ANSWERSIt is often too cold at night for these reactions
to take place.
What is the range of wavelengths of light that are absorbed by the pigments in the
thylakoid membranes? - ANSWERSBlue-violet and red-orange
Which molecule is the final electron acceptor in the electron transport chain in the
mitochondiral matrix? - ANSWERSOxygen
Hormones are chemical substances produced in one organ that are released into the
bloodstream and affect the function of a target organ. Which of the following conditions
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