Questions+41-50+(per+3)

__Mid-Term Review__ Group 4 Fall Leaves and Tree Identification - 12 questions

__12 Questions__

1. The leaf type that has a single leaf blade is a(n) a. opposite leaf b. compound leaf c. simple leaf d. alternate leaf

2. The leaf type that is a leaf separated into leaflets is a(n) a. opposite leaf b. compound leaf c. simple leaf d.alternate leaf

3. The petiole is known as the a. leaf stalk b. leaf color c. leaf seeds d. none of the above

4. The mark left on the twig where the leaf was attached is the a. bud b. pith c. thorn d. leaf scar

5. Thorns are... a. next years leaf b. modified leaves c. modified branches d. terminal

6. Spines are... a. next years leaf b. modified leaves c. modified braches d. lateral

7. All of the following are reasons for leaves to change colors except... a. shortening of photoperiod b. length of day c. temperature or weather

8. Which of the following are ways in which a tree prepares in the fall? a. nutrients and sap move into the tree. b. vascular tissue entering leave and closes off. c. chlorophyll breaks down d. all of the above

9. Pinnately compound leaves are aligned a. horizontally b. vertically c. symmetrically d. asymmetrically

10. Trees can be identified using all of the following except: a. seeds b. bark c. roots d. none of the above

11. The midrib of a leaf is... a. the main vein b. branches of veins c. another name for the stem d. the blade

12. The pith is the... a. height of the tree b. seed c. system that carries sap d. center of the tree stem

__Short Answer__

1. Explain what the xylem and phloem are as well as what they do and where they travel about the tree. Also, explain what can be done to these that can be used to kill the tree.

2. Name the three pigments found in trees that we discussed in class and what colors each are. Discuss which ones are dominate and non-dominate throughout the year as well as what causes these to change colors. Be sure to mention what happens in the fall that makes the non-dominant pigment present.

3. Draw and label a branch which contains pinnately compound leaves with a toothed margin, and a terminal bud.