Exam 39: Sensory Systems in Plants

While touring the ancient Egypt exhibit at the local history museum,you learn that ancient Egyptians would slash figs in order to stimulate ripening.Based on your knowledge of plant hormones you hypothesize that wounding the figs must release

In some genetically engineered tomatoes,fruit ripening was delayed by crippling the gene that produces which hormone?

How do nastic movements differ from tropisms?

What endogenous process helps plants to keep their movements and other responses synchronized with the environment?

Climbing plants,such as vines,rely on touch to navigate and develop tendrils that coil around objects they encounter.Roots also rely on touch to navigate their way through the soil.When roots come into contact with an object,they generally grow in a direction away from the object.Based on this information,which of the following statements is true?

Which of the following statements about abscisic acid are true? Check all that apply.

Before ARF transcription factors can trigger auxin-induced gene expression,what must happen?

One effect of auxin,which triggers the elongation of cells,is to affect cell walls by increasing their

Which naturally-occurring plant hormone has a major role in the phototropic response of plants?

Research has shown that cytokinin levels fluctuate seasonally in temperate plants.What season would you expect to see the lowest levels of cytokinins and why would this be adaptive?