Buds are produced
a. in the axils of leaves.
b. at the very ends of stems.
c. at the nodes.
d. by the apical meristem.
e. at all of these areas.
Answer: e
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Examine this electron micrograph of a chloroplast.
a. Identify the stack of membranes labeled A. b. Identify the region labeled B. c. Would the production of organic compounds during the light-independent reactions occur in region b or on the membranes labeled a? d. Would you expect the plant in which this structure was found to have been illuminated with strong light immediately before it was prepared for electron microscopy? Why or why not?
Which of the following is NOT correct regarding the purple photosynthetic bacteria photosynthetic apparatus?
A. Possesses bacteriochlorophylls a or b B. Performs anoxygenic photosynthesis C. Has intracytoplasmic membranes (ICMs) to provide space for photosynthetic units (PSUs) D. Apparatus is continuous with the plasma membrane E. Apparatus is straight to decrease surface area and contain reactions
Lederberg and Tatum's experiments demonstrated that
A. bacteria can acquire genetic material from each other. B. bacteria do not release DNA into the environment for other bacteria to take up. C. bacteria must be in physical contact in order for bacteria to exchange genetic material. D. the genetic transfer occurred when the bio+, met+ phe-thr- strain transferred DNA to the bio-met- strain. E. All of these observations were made by Lederberg and Tatum.
The group that probably gave rise to chloroplasts is the
A. green photosynthetic bacteria. B. purple sulfur bacteria. C. methane bacteria. D. cyanobacteria. E. nonsulfur purple bacteria.