Biology assignments

timer Asked: Apr 14th, 2016

Question description

HW 1

Q1: Formulatea null hypothesis for the following hypothesis: ‘’Tomato plants exhibit a higher rate of growth when planted in  compost instead of in soil. “Why is the null hypothesis useful?

Q2: Describe the characteristics of questions that can be addressed through the scientific method, and give some examples.

Q3: Design an experiment using al the steps of the scientific method.

Q4: Does the statement “ evaluation is just theory” have any merit? Explain?

HW 2

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 3

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 4

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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