Explain how the structures of tracheids and vessel elements are specialized for their conduction of
water and dissolved minerals. What will be an ideal response?
Concepts to Consider: Both cells are dead and hollow, so water can be conducted through them.
Tracheids--tapered cells found in patches; have pits in cell walls that pass water from cell to cell.
Vessel elements--stacked on top of one another like a pipe; perforations in end walls and pits in lateral
walls pass water from vessel element to vessel element.
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Rubisco has 16 subunits joined together to make a functional unit. Eight of the subunits are large, the other 8 are
small. On which subunit(s) is/are the active sites located?
a. on each of the 8 large subunitsb. on each of the 8 small subunits c. on one of the 8 large subunits d. on one of the 8 small subunits e. on each of the 16 subunits
The type of plant hormone primarily responsible for inhibiting growth of lateral meristems on shoots and restricting
the formation of branches is/are ____.
a. abscisic acid b. cytokinins c. auxins d. salicylic acid e. gibberellins
Of the following choices, the best outgroup to use to resolve a phylogeny for great apes would be
a. lemurs. b. butterflies. c. angiosperms. d. slime molds. e. Archaea.
The biological species
What will be an ideal response?