Chapter 3

Biology of Plants · 10 exercises

Problem 1

Distinguish between the cell theory and organismal theory.

3 step solution

Problem 2

What three features of plant cells distinguish them from animal cells?

3 step solution

Problem 5

Explain the phenomenon of autumn leaf coloration.

5 step solution

Problem 6

Distinguish between rough endoplasmic reticulum and smooth endoplasmic reticulum, both structurally and functionally.

3 step solution

Problem 7

Distinguish between microtubules and actin filaments. With what functions are each of these protein filaments associated?

4 step solution

Problem 8

Using the following terms, explain the process of cell wall growth and cellulose deposition in expanding cells: cellulose microfibrils, cellulose synthase complexes (rosettes), cortical microtubules, secretory vesicles, matrix substances, plasma membrane.

6 step solution

Problem 9

In what sense do plants differ from animals with respect to the location of most cell division activity?

3 step solution

Problem 10

In the typical cell cycle there are checkpoints. What are these checkpoints? What purpose do they serve?

4 step solution

Problem 11

Distinguish between a centromere and a kinetochore.

3 step solution

Problem 12

What is the preprophase band? What role does it play in plant cell division?

2 step solution

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