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Chapter 18 Quiz 3
Final Practice
20
Biology
Undergraduate 2
05/10/2011

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Term
Which of the following terms describes the situation in most angiosperm plants, where male and female parts are in the same individual?
Definition
hermaphroditic
Term
The knots we see in wood represent:
Definition
places where branches were connected to the trunk.
Term
Which of the following mechanisms would NOT reduce inbreeding or genetic diversity in a species?
Definition
sprouting
Term
Meristem cells left behind as the top of a plant grows higher, are:
Definition
dormant.
Term
In order for asexual propagation to work, the bit of plant used to start a new plant must have:
Definition
some undifferentiated cells.
Term
In plants, the first product of meiosis is:
Definition
a spore.
Term
When you are seven years old, you write your name four feet above the ground, into a 12 foot tall bamboo plant. You spend the next ten years in a special home for vandals. When you get out the bamboo is 24 feet tall. At that time, how far above the ground will your name be?
Definition
4 feet
Term
In Native American folklore it was believed that spirits lived within a popcorn kernel. These spirits became angry when the kernel was heated, finally bursting and turning themselves inside-out with a pop. What is the scientific explanation for why popcorn pops?
Definition
Water within the kernel turns to steam, blowing the kernel open and exposing the cooked starch.
Term
Each angiosperm pollen grain contains how many sperm cells?
Definition
two
Term
Which of the following is NOT true about secondary growth seen in trees?
Definition
Cells of the vascular cambium produce a ring of cells toward the inside of the trunk called the lateral meristem.
Term
Unlike in animals, most of a tree's cells are:
Definition
dead
Term
When, after seed germination, does photosynthesis begin?
Definition
when the shoot emerges from the soil
Term
Asexual reproduction in plants:
Definition
is common when a population occurs in a marginal habitat.
Term
Which of the following is a common gardening practice?
Definition
using genetically-identical clones produced by a plant through asexual reproduction
Term
By what process do the haploid cells in a new pollen grain produce two sperm cells?
Definition
mitosis
Term
In flowering plants, meiosis occurs:
Definition
in both the ovule and the anther.
Term
Seeds that are tiny and light are most likely to be:
Definition
wind-dispersed.
Term
The _________ is the pollen-producing part of the male reproductive structure of the flowering plant.
Definition
stamen
Term
Which of the following is INCORRECT about plant gamete production?
Definition
Megaspores divide to produce microspore mother cells.
Term
Seeds that are "designed" not to germinate, even under ideal environmental conditions are most likely to require:
Definition
passage through a bird gut or exposure to fire.
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