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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