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BCH 369 EXAM with Questions Solved 100% Correct | Latest Update
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BCH 369 EXAM with QuestionsSolved 100% Correct | Latest Update
What is the role of the disulfide bond is oxytocin and vasopresin? - Answer the
disulfide bond is responsible for the cyclic structure of both
Match protein structure:
1. The order of amino acid residues in the polypeptide chain
2. The interaction between subunits in proteins that consist of more than
one polypeptide chain
3. The hydrogen-bonded arrangment of the polypeptide backbone
4. The 3-D arrangement of all atoms - Answer 1. Primary
2. Quaternary
3. Secondary
4. Tertiary
Why is the development of catalyst important to the development of life? - Answer
Catalysis allows living organisms to carry out chemical reactions much more
efficiently than without catalysts
What are two major advantages of enzyme catalysts in living organisms when compared
with other simple chemical catalyst such as acids or bases? - Answer Speed and
specificity; work at constant temp. and make little heat
, Why was the development of a coding system important to the development of life?
- Answer Coding allows for reproduction of cells
List five differences between prokaryotes and eukaryotes - Answer Prokaryotes dont
have a well-defined nucleus, Eukaryotes have a double membrane one. Prokaryotes
have a plasma membrane, Eukaryotes have an extensive internal membrane system.
Eukaryotic cells have membrane bound organelles. Eukaryotic cells are larger than
prokaryotes. Prokaryotes are single celled organisms, eukaryotes can be single
celled while eukaryotes can be single celled or multicellular.
Which organelles are surrounded by a double membrane? - Answer Nuclei,
mitochondria, and chloroplasts
Which organelles contain DNA? - Answer Nuclei, mitochondria, and chloroplasts.
Nuclei DNA differs
Which organelles are the sites of energy-yielding reactions? - Answer Mitochondria
is where ATP synthesis occurs and energy is released
List the five kingdoms into which living organisms are divided, give an example of each -
Answer Monera include bacteria and cyanobacteria. Protista include Euglena, Volvox,
Amoeba, paramecium. Fungi include molds and mushrooms. Plantae include club
mosses and oak trees. Animalia includes spiders, earthworms, salmon, rattlesnakes,
robins and dogs.
Which processes are favored: those that require energy or those that release energy? -
Answer Processes that release energy are favored
Does the thermodynamic term spontaneous refer to a process that takes place quickly?
- Answer Spontaneous is energetically favored, doesn't mean fast
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