Download Plants in Our Lives

Get ready to take Quiz #3
over
Chapter 22-25 “Plants in our Lives”
• Materials you
will need:
• One piece of
paper
• A writing utensil
Instructions
• Remove everything from your table except
your materials.
• Fold your notebook paper “hot dog” style.
• Keep the folded paper closed and turn it
where you can see the three holes.
• Write your full heading starting with the
first line. Note: This is the only place your name will be written.
• Open your paper and write the title “Quiz
#3.”
• Number your paper from 1-10.
• Write the correct answers for the following
questions.
Question #1
•Often vase-shaped,
the _____ consists
of three parts: the
stigma, the style,
and the ovary.
Question #2
•A _____ consists of a
slender stalk called the
filament, which supports
the anther, a tiny
compartment where
pollen forms.
Question #3
• Annuals, Biennials, or
Perennials
• _____live from one
growing season to another
Question #4
• Annuals, Biennials, or
Perennials
• _____ complete their life
cycle in one growing
season
Question #5
Stigma
_____
_____
Ovary
Question #6
•The Lawson cypress,
like all other
coniferous trees, is
_____ pollinated.
Question #7
•Most flowers have all four
whorls—pistil, stamens,
petals, and sepals.
•Botanists call these
_____ flowers.
Question #8
•_____ is produced
in the anther, and
is released when
mature.
Question #9
•The sepals, the
outermost whorl,
together are called
the _____.
Question #10
•Many _____ have
bright colors, which
attract animals that
carry out pollination,
collectively termed
pollinators.
The End of
Quiz #3
Follow the directions
of your teacher.
Plants
Plants
in our
Lives
Chapter 22
Plant
Kingdom
• The kingdom Plantae accounts for the largest
proportion of the earth's biomass with its
approximately 250,000 species of mosses,
liverworts, ferns, flowers, bushes, vines, trees,
and other plants.
• Aquatic and terrestrial plants are the basis of
all food webs.
• They contribute life-supporting oxygen to the
atmosphere and provide humans with the fossil
fuels, medicines, and other substances so
important to our present existence.
Plant Kingdom
Plants in Our Lives
•Plants
as Food
•Other
Uses of
Plants
Plants as Food
• Cereals
• Legumes
• Root crops
Cereals
• Cereals such as rice, wheat, and corn
are important sources of food.
• Cereals produce dry fruits calls grains,
which contain a single seed that is
paced with energy-rich endosperm.
Legumes
• Legumes such as beans and peas are
important foods because they provide
essential amino acids that grains lack.
Root crops
• Root crops such as potatoes, yams,
and cassava are also a major source
of calories.
Other uses of Plants
Wood
• Wood, an important plant resource,
is found in thousands of products.
• It is cut into lumber for use in
building construction.
• It is ground into wood pulp for use
in paper and rayon.
Plants
• Plants are the sources of many
important medicines used to treat
diseases and other ailments.
• Plants are also sources of cloth
(cotton), rubber, and latex.
Impact of Plants
• Though the first plants appeared on land only about
half a billion years ago, today they account for by far
the largest proportion of the earth's biomass.
• From towering redwoods to almost microscopic species
of duckweed, the plant kingdom is an extraordinarily
diverse and long-lived group that makes the life of
animals, fungi, and other organisms possible.
• Its members provide oxygen, shelter, and the
foundation of the food web, determining the traits of
the organisms that depend on them in a huge variety
of habitats.
• Their beauty, fragrance, and amazing traits fascinate
and bring intellectual and aesthetic pleasure to many
humans.
Wheat
• Wheat has been grown throughout temperate regions
of the world since prehistoric times.
• Although wheat's primary use is as a flour, it is also
used in brewing and distilling, as livestock feed, and
even as a coffee substitute.
• The former Soviet Union, China, and the United States
lead the world in the production of wheat.
Redwood
National
Park
• Redwood National Park, which covers 455 sq km (176 sq mi)
along California's northwestern coast, represents one of the last
remaining ancient redwood forests in the world.
• Here, heavy coastal rainfall and lack of exploitation by humans
has encouraged the dramatic growth of some of the largest
trees on earth.
• Some of these redwoods are believed to be more than 2,300
years old.
Plants and you
Only a tiny percentage of
plant species are directly
used by humans for food,
shelter, fiber, and drugs.
• At the head of the list are
rice, wheat, corn,
legumes, cotton,
conifers, and tobacco, on
which whole economies and
nations depend.
• Of even greater importance
to humans are the indirect
benefits reaped from the
entire plant kingdom and its
more than 1 billion years
of carrying out
photosynthesis.
• Plants have laid
down the fossil fuels
that provide power
for industrial
society, and
throughout their
long history plants
have supplied
sufficient oxygen to
the atmosphere to
support the
evolution of higher
animals.
Today the world's biomass is
composed overwhelmingly of plants,
which not only underpin almost all
food webs, but also
modify climates
and create and
hold down soil,
making what
would otherwise be
stony, sandy masses habitable for
life.
The End