Bio 2170 Final Exam 1 Questions And Already Passed Answers.
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Course
Bio 2170
Institution
Bio 2170
the five most abundant elements found in living organisms - Answer carbon, hydrogen, oxygen, nitrogen, phosphorus
the oxygen and hydrogen of a water molecule contains what type of bond? - Answer polar covalent
Helicase is an enzyme that separates the double helix of the DNA into two sep...
Bio 2170 Final Exam 1 Questions And
Already Passed Answers.
the five most abundant elements found in living organisms - Answer carbon, hydrogen, oxygen,
nitrogen, phosphorus
the oxygen and hydrogen of a water molecule contains what type of bond? - Answer polar covalent
Helicase is an enzyme that separates the double helix of the DNA into two separate strands. How do you
think helicase does this? - Answer by breaking hydrogen bonds
You spill a little bit of olive oil on your hands. You wash off the oil with soap and water. How does the
soap get the oil off your hands? - Answer the hydrogen part of soap interacts with the oil and
sequesters it.
Two of the main ingredients in plant fertilizer are phosphorus and nitrogen. These elements are found in
which classes of biomolecules - Answer DNA and proteins
when carrying out a controlled experiment, it is important to: - Answer change only variable at a time
The characteristic of non-living and living materials: - Answer they both conform to the basic laws of
chemistry and physics
Nucleic acids are important information storage molecules present in virtually every cell. Which of the
processes is carried out by a cell when it accesses that information in the DNA of the genes? - Answer
transcription and translation
Observations are used by scientists to draw tentative explanations called hypotheses. - Answer TRUE
All of the classifications are considered domains of life except: - Answer Protists.
, The domains of life are - Answer Bacteria, Archaea, Eukarya
A general explanation of an aspect of the world, supported by a large body of experiments and
observations, is called - Answer theory
Which of the scientists tested the hypothesis that microorganisms can arise by spontaneous generation?
- Answer Pasteur
Entropy can be thought of as the amount of _____ in a system. - Answer disorder
Which choice is a pyrimidine found in DNA? - Answer thymine
14C is an isotope of carbon that possesses: - Answer 6 protons, 8 neutrons, 6 electrons
Which statement best describes an effect of the low density of frozen water in a lake? - Answer When
water in a lake freezes, it floats, providing insulation for organisms below the ice.
_____ are the subunits of nucleic acids, and _____ are the subunits of proteins. - Answer Nucleotides;
amino acids
Miller and Urey's initial simulation resulted in the formation of which one of the molecules? - Answer
amino acids
Which of these choices contributes to the measurement referred to as atomic mass? - Answer protons
and neutrons
A pair of shared valence electrons is referred to as a - Answer covalent bond
A polar covalent bond is due to: - Answer unequal sharing of electrons in a covalent bond.
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