Ch.25 Roots Stems and Leaves Flashcards
The shoot system of a plant consists of all of the following EXCEPT _____.
a. internode
b. pith
c. root apex
d. axillary bud
root apex
Chlorenchyma cells (parenchyma cells with chloroplasts) specialize in ____.
a. photosynthesis
b. water transport
c. food storage
d. repair
photosynthesis
Collenchyma tissue can be found in _____.
a. vacuoles
b. epidermis
c. stems
d. none of the above
epidermis
Xylem and phloem are components of _____.
a. vascular tissue
b. dermal tissue
c. epidermis
d. periderm
vascular tissue
Specialized cells that protect roots from abrasive soil are found in the _____.
a. root cap
b. root hairs
c. apical meristem
d. secondary roots
root cap
Modified stem systems include all of the following EXCEPT ____.
a. tubers
b. runners
c. rhizomes
d. suckers
suckers
What type of roots do lily bulbs have?
a. Prop roots.
b. Contractile roots.
c. Spongy roots.
d. Aerial roots.
contractile roots
What type of leaf venation is seen here?
a. Pinnate.
b. Parallel.
c. Dichotomous.
d. Palmate.
Palmate
In vascular plants, the ______ conducts the products of photosynthesis through the plant’s stem.
a. xylem
b. phloem
c. mesophyll
d. ground tissue
phloem
Name this leaf structure.
a. Main vein.
b. Midrib.
c. Margin.
d. Petiole.
midrib
The apical meristem gives rise to which of these regions?
a. Procambium.
b. Ground meristem.
c. Protoderm.
d. All of the above.
e. A and B.
All of the above
Which type of leaf arrangement is shown here?
a. Pinnately compound.
b. Compound.
c. Palmately compound.
d. Simple.
Pinnately Compound
What allows grass to grow back quickly after it has been mowed?
a. Vascular cambium.
b. Intercalary meristem.
c. Cork cambium.
d. Parenchyma tissue.
Intercalary meristem
Fibers and lignin in plants are found in which type of tissue?
a. Collenchyma.
b. Parenchyma.
c. Sclerenchyma.
d. Meristematic.
Sclerenchyma
Grasses have what type of root system?
a. Taproots.
b. Fibrous roots.
c. Contractile roots.
d. Prop roots.
Fibrous roots
The epidermis in woody plants is replaced by what tissue?
a. Roots.
b. Stems.
c. Periderm.
d. Vascular cambium.
Periderm
Name this area of the root.
a. Elongation region.
b. Apical meristem.
c. Ground meristem.
d. Root cap.
Apical meristem
Phloem is composed of all of the following EXCEPT _____.
a. parenchyma cells
b. sclerenchyma
c. companion cells
d. tracheids
tracheids
Mycorrhizae help many plants perform which function?
a. Provide sugars and amino acids.
b. Convert nitrogen into nitrates.
c. Metabolize phosphorus.
d. Increase root absorption.
Metabolize phosphourus
Which of the following statements is NOT true?
a. Cell division takes place in meristematic tissue.
b. Only meristematic tissue produces new cells by mitosis.
c. In all seed plants, secondary growth takes place in lateral meristematic tissue.
d. Vascular cambium produces vascular tissue and increases the thickness of stems over time.
c. In all seed plants, secondary growth takes place in lateral meristematic tissue.
What is the function of lenticels on a woody stem?
a. Branch support.
b. Gas exchange.
c. Secondary growth.
d. All of the above.
Gas exchange
What component of plants is important in protection from dessication?
a. Protoderm.
b. Suberin.
c. Lignin.
d. Sclereids.
Suberin
Identify the tissue in this dicot root.
a. Epidermis.
b. Phloem.
c. Xylem.
d. Cortex.
Cortex
Succulent leaves are modified for _____________.
a. climbing
b. water retention
c. trapping of insects
d. floatation
water retention
Which of the following controls the process of abscission in a typical leaf?
a. Carotene.
b. Auxin.
c. Xanthophyll.
d. Anthocyanin.
Auxin
The vascular cylinder in plants contains xylem and phloem. The _________is the first layer of cells in the vascular cylinder.
a. pith
b. Casparian strip
c. pericycle
d. stele
pericycle
When guard cells are filled with water, they swell. What effect does this have on the stomata?
a. Stomata open to allow gas exchange.
b. Stomata open to allow water to leave the leaf.
c. Stomata close to prevent gas exchange.
d. Stomata close to prevent water from leaving the leaf.
Stomata open to allow gas exchange.
Which properties of water allow it to move up from the roots?
a. Cohesion.
b. Density.
c. Adhesion.
d. All of the above.
e. A and C.
A and C
In tomato plant leaves, the loosely packed cells are known as _______________.
a. spongy mesophyll
b. palisade mesophyll
c. stomata
d. vascular tissue
spongy mesophyll
Which structure(s) in a typical leaf facilitate(s) gas exchange and control(s) the rate of transpiration?
a. Ground tissue.
b. Stomata.
c. Guard cells.
d. Sheath cells.
Stomata
