Name: __________________________

1
GREENHOUSE LAB 1 Bio 20B Fall 2007 Note work on
this sheet must be your own.
Name __________________________ TA
____________________________
STEMS
1. Label the structures.
Helianthus (a dicot)
Zea (a monocot)
2
Name __________________________ TA
____________________________
2. One function of the shoot system is
_________________________________ 3. The root
apical meristem and the shoot apical meristem
both give rise to the _____________ (primary or
secondary?) body. 4. Vascular bundles are
arranged differently in the stems of monocots and
dicots. In _______________ they are arranged in
a ring. In ________________they are arranged
throughout the ground tissue. 5. What is the
region between two nodes? ___________________ 6.
Bark contains all the tissues outside the
_________________________________ 7. Wood is
composed of what type of cells ___________________
_
LEAVES
8. Label the structures.
9. What structure(s) regulate the opening and
closing of the stomata? _______________________ 1
0. What is the importance of the intercellular
spaces in the spongy mesophyll? 11. What is the
function of the veins in a leaf?
3
Name __________________________ TA
____________________________
12. Looking at some of the xerophytes, name a
cool adaptation that some leaves have to conserve
water. 13. Carnivorous plants live in bogs and
other places where the soil conditions are poor.
Many of these plants have modified leaves with
digestive enzymes, which help them obtain an
important nutrient, which their habitat does not
provide. What is that nutrient?
ROOTS
14. Label the structures.
Dicot root
4
Name __________________________ TA
____________________________

• What is the function of root hairs?
• In what region of the root does a great deal of
  mitosis occur?
• What is the function of the root cap?
• How many steles do monocot roots have?
• How many steles do dicot roots have?
• What is the function of the endodermis?
• From what layer of cells do new lateral roots
  arise?

USEFUL PLANTS
Tour the greenhouse and look for the plants that
have been labeled because they are commonly used
by humans for food, shelter, medicine, etc.

• List five of these species (use common name).
• ________________
• ________________
• ________________
• ________________
• ________________
• (2pts) Choose one of the species and spend some
  time looking at it. Share an observation or a
  question about it