Bio assignment short essay

  

answer the questions in a short essay
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HW 1
Q1: Explain how the shapes of carbohydrates, lipids, and proteins relate to their
function.
Q2: describe the three types of particles that comprise all atom in terms of
charge, mass, and
location within the atom.
Q3: discuss the basic steps of how an enzyme catalyzes a reaction, using lactase
as an example.
Q4: compare and contrast DNA and RNA in terms of structure, composition, and
function.
HW 2
Q1: describe how the properties of the head and tail ends of the phospholipid
molecules account for their specific arrangements that form the bilayer.
Q2: compare and contrast the theories of endosymbiosis and invagination and
the supporting
evidence for each
Q3: a drop of red food coloring is added to a glass of water. After a few months,
the entire glass of water is evenly dyed red. What role did diffusion play in this
experiment?
Q4: define passive transport, and explain what type of passive transport would
be used to move each of the following substances into a cell: oxygen, amino acid,
and water.
HW 3
Q1: describe the movement of protons as electrons are shuttled through the
electron transport chain and as the energy in this gradient is used to form ATP.
Q2: briefly describe the adaptations of C4 and CAM plants that reduce water loss
through stomata.
Q3: cellular respiration is a lot like photosynthesis in reserve. “Evaluate this
statement, and discuss the similarities and differences between photosynthesis
and cellular respiration.
Q4: Briefly describe the two laws of thermodynamics and how they related to
cellular respiration.
Q5: How is a hydrogen bond similar to an ionic bond? How are they different?

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