MARINE BOTANY STUDY GUIDE

EXAM 1 – Spring 2008 – Dr. Jewett-Smith

CHAPTER 1

∑ Know divisions of the following: blue greens, reds, greens, browns, dinoflagellates, seagrasses, mangroves. Be sure to know the alternative names if they were given.

CHAPTER 2

∑ Draw and label the profile of the pelagic and benthic zones of oceans. Where would you find algae? Where would you find flowering plants? Why?

∑ How does water depth affect light transmission (quality and quantity)?

∑ How is light measured?

∑ What is a boundary layer?

∑ Currents: be able to identify the major currents from a map of the world (Fig. 2-14).

∑ How is oxygen measured? Describe both probe methods and chemical methods.

∑ Be able to diagram nitrogen, phosphorus and silicon cycles in the ocean. Identify the major sources and sinks.

CHAPTER 3

∑ Compare and contrast the ecological models of food chains and webs.

∑ Define succession and give examples.

∑ Explain the CSR model from Grime, 1977.

∑ Define and give marine botanical examples of the major biological interactions: symbiosis, competition, predation

∑ What is biofouling?

CHAPTER 4

∑ What are the primary photosynthetic pigments in marine plants. Be able to recognize the chemical structures.

∑ Look at Table 4.1. How are pigments used to classify algae? What pigments are unique to each division?

∑ Compare action and absorption spectra using the discussion in the text, lecture and Figure 4.4.

∑ How do plants fix carbon in the ocean? What are the substrates? Enzymes? Plant or algal structures? Why is photorespiration a problem?

∑ How do algae respond to changes in temperature as it relates to photosynthesis? What evidence points to the fact that photosynthesis is an enzymatic process (be sure to mention Michaelis-Menten kinetics in your response)?

∑ How do plants/algae respond to salinity on the short-term, mid-term and long-term in ecosystems? What compounds are involved?

∑ What are the essential elements in seaweeds and how are they used? (Table 4.2)