Prelecture Worksheet Chapter 35
Name: ___________KEY_______________
1. Fill in the table below regarding three major types of plant organs.
Organ
Function(s)
ROOTS
ANCHORAGE; ABSORPTION OF MINERALS AND WATER
SOMETIMES STORE STARCH
LEAVES
PHOTOSYNTHESIS
STEMS
SUPPORT; SOMETIMES PHOTOSYNTHESIS
2. Draw a generic stem and label the nodes, internodes, axillary buds and terminal buds
3. Draw a simple leaf and label the petiole, blade and midvein.
4. How does the venation differ in leaves between monocots and dicots?
IN MONOCOTS, VENATION IS PARALLEL AND IN DICOTS, VENATION IS NET
5. There are three tissue systems in plants. Fill in the table indicating the tissue systems and the primary
tissues that make up those tissue systems
Tissue System
Tissues
XYLEM, PHLOEM
VASCULAR
DERMAL
GROUND
EPIDERMIS
PERIDERM (IN WOODY PLANTS)
GROUND TISSUE (SCLERENCHYMA, PARENCHYMA,
COLLENCHYMA)
6. There are five basic plant cell types. Fill in the table indicating the names of the cell types and their
major functions and in which tissues they are found.
Cell type
Function(s)
STORAGE, PHOTOSYNTHESIS,
METBOLIC FUNCTIONS
Found in which tissues?
GROUND, EPIDERMIS
STRUCTURE AND SUPPORT
COLLENCHYMA
JUST BELOW EPIDERMIS IN
YOUNG GROWING TISSUE
SCELERENCHYMA STRUCTURE AND SUPPORT
XYLEM, GROUND
PARENCHYMA
VESSEL
ELEMENTS AND
TRACHEIDS
SIEVE TUBE
MEMBERS AND
COMPANION
CELLS
CONDUCT WATER ,
MINERALS AND IONS
XYLEM
TRANSLOCATE
PHOTOSYNTHATE
PHLOEM
7. Which example below is the site of primary growth?
a. apical meristems
b. axillary buds
c. bud scales
d. lateral meristems
e. nodes
8. On the diagram below match the images to the following descriptions
a.
b.
c.
d.
Dicot root __I____
monocot shoot___II___
Dicot root _III_____ THIS SHOULD SAY DICOT SHOOT
stem with secondary growth__IV____
9. What is the function of the endodermis?
THE ENDODERMIS IS A LAYER OF CELLS WITH DIFFERENTIALLY THICKENED
WALLS IN THE ROOTS THAT SEPARATES THE VASCULAR TISSUES FROM THE
GROUND TISSUE
10. What is the function of the root cap?
THE ROOT CAP PROTECTS THE GROWING ROOT AS IT PASSES THROUGH THE SOIL
11. What is the function of the stomata?
THE STOMATA REGULATE THE MOVEMENT OF GASES INTO AND OUT OF THE
LEAVES (AND SOMETIMES THE STEMS TOO, DEPENDING ON THE PLANT) THEY
CONSIST OF TWO GUARD CELLS AND A PORE.
12. Cell division in the vascular cambium adds to the girth of a tree by adding new _____ to the layer's
interior and _____ to the layer's exterior.
a. phloem ... xylem
b. xylem and phloem ... bark
c. pith ... xylem and phloem
d. xylem ... phloem
e. xylem ... cortex
13. In which Divisions of plants would you expect to find try secondary growth?
CONIFEROPHYTA, ANTHOPHYTA
14. In what order would you pass through tissues when moving from the pith to the epidermis in a plant
possessing secondary vascular tissue?
a. primary phloem, primary xylem, secondary phloem, secondary xylem
b. primary xylem, secondary xylem, vascular cambium, secondary phloem, primary
phloem
c. primary phloem, secondary phloem, secondary xylem, primary xylem
d. secondary xylem, primary xylem, primary phloem, secondary phloem
e. secondary phloem, primary phloem, primary xylem, secondary xylem