Unformatted text preview: gibberellin Fruit ripening - ethylene 4. What is happening in a stem when it bends toward a light (2 pts)? Auxin accumulates on the non-lighted side of the stem and stimulates the cells on that side to grow larger than the cells on the lighted side. This causes the stems to bend (grow) toward the light. 5. True or False . Collenchyma cells have secondary cell walls. 6. True or False. Primary growth in plants is called primary growth. 7. Name the primary meristematic tissue in the sketch below of a cross section of the area just below SAM on a dicot stem. Procambium...
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- Spring '08
- Signal transduction pathway, 2 pts