Principles of Biology

Robert Brooker, Eric Widmaier, Linda Graham, Peter Stiling

Chapter 28

An Introduction to Flowering Plant Form and Function - all with Video Answers

Educators

Chapter Questions

Problem 1

Where would you look to find the gametophyte generation of a flowering plant?
a. at the shoot apical meristem
b. at the root apical meristem
c. in seeds
d. in flower parts
e. Flowering plants lack a gametophyte generation.

Christina Sorrentino

Christina Sorrentino

Numerade Educator

Problem 2

Which type of plant is most likely to have food-rich roots that are useful as human food?
a. an annual
b. a biennial
c. a perennial
d. a centennial
e. a plant that grows along coastal shorelines

Christina Sorrentino

Christina Sorrentino

Numerade Educator

Problem 3

Which of the following terms best describes the distinctive architecture of plants?
a. radial symmetry and apical-basal polarity
b. bilateral symmetry and apical-basal polarity
c. radial symmetry and absence of apical-basal polarity
d. bilateral symmetry and absence of apical-basal polarity
e. absence of symmetry and absence of apical-basal polarity

Christina Sorrentino

Christina Sorrentino

Numerade Educator

Problem 4

Which is the most accurate description of how plants grow?
a. by the addition of new cells at meristems that include stem cells
b. by cell enlargement as the result of water uptake
c. by both the addition of new cells and cell expansion
d. by addition of fat cells
e. all of the above

Christina Sorrentino

Christina Sorrentino

Numerade Educator

Problem 5

Where would you look for leaf primordia?
a. at a vegetative shoot tip
b. at the root apical meristem
c. at the vascular cambium
d. at the cork cambium
e. in a floral bud

Christina Sorrentino

Christina Sorrentino

Numerade Educator

Problem 6

Which leaf tissues display the greatest amount of air space?
a. the upper epidermis
d. the spongy parenchyma
b. the lower epidermis
e. the vascular tissues
c. the palisade parenchyma

Christina Sorrentino

Christina Sorrentino

Numerade Educator

Problem 7

What are adventitious roots?
a. roots that develop on plant cuttings that have been placed in water
b. buttress roots that grow from tree trunks
c. the only kind of roots produced by monocots, because their embryonic root dies soon after seed germination
d. any roots that are produced by stem (or sometimes leaf) tissue, rather than developing directly from the embryonic root
e. all of the above

Christina Sorrentino

Christina Sorrentino

Numerade Educator

Problem 8

During its development, a water-conducting tracheid elongates in a direction parallel to the shoot or root axis. Based on this information, what can you say about the orientation of cellulose cell-wall microfibrils and cytoplasmic microtubules in this developing tracheid?
a. The microfibrils will be oriented perpendicularly (at right angles) to the long axis of the developing tracheid, encircling it, but the cytoplasmic microtubules will be oriented parallel to the direction in which the tracheid is elongating.
b. Microfibrils and microtubules will both be oriented perpendicularly (at right angles) to the elongating axis of the tracheid.
c. Microfibrils and microtubules will both be oriented parallel to the direction of tracheid elongation.
d. Microfibrils will be oriented parallel to the direction of tracheid elongation, but microtubules will be perpendicular (at right angles) to both the microfibrils and the elongating tracheid.
e. None of the above are correct.

Christina Sorrentino

Christina Sorrentino

Numerade Educator