Samuels BIO Special Leaves: Question Preview (ID: 28348)


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This is the term for trees that undergo color change in the fall
a) deciduous b) angiosperm c) gymnosperm d) conifer
Color change in leaves is triggered mainly by what factor?
a) length of day and night b) temperature c) access to carbon dioxide d) water
The dominant pigment in plants is
a) chlorophyll b) xanthophyll c) carotene d) anthocyanin
The yellowish-orange colors are produced by this pigment
a) carotene b) chlorophyll c) xanthophyll d) anthocyanin
This cuts leaves from the stem at the base of the petiole of a leaf
a) abscission layer b) epidermis c) transpiration d) guard cells
The enzyme involved in weakening cells preparing a leaf to be cut off is
a) cellulase b) hydrogenase c) synthase d) nuclease
High rates of transpiration happens when sufficient water cannot be pulled to leaves. This leads to
a) wilting b) turgor pressure c) turgidity d) blooming
These special leaves hold a vine upright by coiling around a support structure.
a) tendrils b) spines c) insectivorous d) bract
These special leaves contain no chlorophyll and serve as protection to the plant.
a) spines b) tendrils c) insectivorous d) bract
These plants contain special leaves that consume insects to obtain nitrogen.
a) insectivorous b) tendrils c) spines d) bract
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