True and False Questions
Dicots typically have floral parts in fours or fives (or their multiples), while monocots more often have their parts arranged in threes or multiples of three.
The most likely pollinators of bright yellow flowers with strong fragrances are birds.
Although ultraviolet light is not within human visual range, some insects can see it.
Although Yucca plants are usually pollinated by Yucca moths, the plants can be pollinated by several other less specialized moth and butterfly species.
Many grasses are similar to gymnosperms in that they are wind-pollinated.
In double fertilization, a single sperm fertilizes both the egg cell and the primary endosperm nucleus.
Multiple Choice Questions - Choose the best available answer.
Flies are likely to visit flowers described as
a) bright-colored with a sweet fragrance
b) dull-colored with a putrid odor
c) inconspicuous with little color or odor
d) yellow or blue with a strong fruity fragrance
Although gymnosperms do not have flowers, their pollen is often carried by
Within the ovary of a flower, the opening in the megasporangium that is ultimately penetrated by the pollen tube is called
Which of the following sequences best describes events in the pistillate plant?
a) microspore mother cell => microspore => megagametophyte => egg cell
b) megagametophyte => microspore mother cell => microspore => egg cell
c) megagametophyte => egg cell => microspore mother cell => microspore
d) microspore mother cell => microspore => egg cell => megagametophyte
e)none of the above
In the angiosperm flower, microsporogenesis occurs via
a) mitosis in the anthers
b) meiosis in the anthers
c) mitosis in the carpels
d) meiosis in the carpels
Germination of angiosperm pollen grains typically occurs
a) in the anther
b) in the ovary
c) on the style
d) on the stigma
In a mature bean seed, there is little or no endosperm; it is absorbed and most of the space is filled by
a) the embryo axis
b) the radicle
c) the meristems
d) the cotyledons
The portion of a dicot embryo below the level of cotyledon attachment is termed the
d) root cap
The "tassels" on the tops of flowering corn plants are actually
a) the styles of pistillate flowers
b) inflorescences of staminate flowers
c) devices to attract insect pollinators
d) the first stages of what will become the mature ear of corn
The condition of dormancy in seeds is usually accompanied by
a) increased water content and reduced metabolism
b) increased water content and increased metabolism
c) loss of water and reduced metabolism
d) loss of water and increased metabolism
Which of the following plants is a bryophyte?
a) red algae
c) pine tree
e) none of the aboce
Which of the following organisms is the most recent ancestor of the land plants?
a) brown algae
b) red algae
c) green algae
d) slime molds
e) blue green algae