Plant physiology

Plant Physiology – Biol 415 name

Take home Quiz: Plant Way of Life

Fill-in-the-Blank : Complete the following with the appropriate choice:

a. thigmomorphogenesis

b. skototropism

c. apical dominance

d. heterophylly

e. dendritic

f. phototropism

g. phyllotaxy

h. gravitropism

i. solar tracking

j. leaf mosaics

k. etiolation

1. growth response to touch

2. results in shorter plants with thicker stems

3. common in plants at treeline

4. growth toward a darkened region of the environment

5. bending toward the light

6. method used by tropical vines to find a support

7. results in Christmas tree shape of plant

8. prevents top heaviness and light to reach lower leaves & branches

9. leaves on plant with different shapes

10. leaves minimize overlapping one another

11. flowers follow movement of sun

12. plant response to the dark

13. leaf arrangement on a plant

14. branched, tree-like form

Short Answer

1. What is etiolation?

2. In what way(s) is a plant like a building?

3. In what way(s) are non-motile animals (such as coral) like a plant?

4. In what way(s) can plants be considered to forage for food?

5. What is the difference between a physical and biological danger? Give an example of each.

6. Provide examples of how plants defend themselves.

7. Why are plants not limited by size but animals are?

Structures for Photosynthesis:

1. Explain why leaves are broad AND thin?

2. Offer an explanation for why cell walls evolved.

Leaves as Photosynthetic Structures : For each of the following structures, identify its function as it relates to photosynthesis.

1. chloroplasts

2. cuticle

3. guard cell

4. palisade layer

5. spongy layer

6. stoma

7. vascular tissue - xylem

8. vascular tissue - phloem

Nutritional Variations Question : Plants exhibit a variety of modifications of the typical mechanism of autotrophic nutrition. Define each of the following and give an example of each.

1. mycotroph

2. holoparasite

3. hemiparasite

4. autotroph

5. heterotrophy

6. epiphyte