Download Lesson 3 | Plant Reproduction - Kapuk`s E

Chapter 8: PLANT PROCESSES AND REPRODUCTION
Lesson 3: PLANT REPRODUCTION
Name Nunchakorn Sonchaiyagorn (Kaupk)
Date 2/22/2015
Class 7
Lesson Outline
LESSON 3
Plant Reproduction
A. Asexual Reproduction Versus Sexual Reproduction
1. Plants can reproduce
asexually or sexually.
2. Asexual
reproduction occurs when a portion (piece, section, part, etc.) of a
plant develops
into a separate new plant that is genetically identical to the parent.
3. One advantage of asexual reproduction is that just one parent organism can
produce offspring
.
4. Sexual
reproduction in plants usually requires two parent
organisms.
5. Sexual reproduction occurs when a plant’s sperm combines with a
plant’s egg
.
6. A new plant produced by sexual
reproduction is a genetic
combination of its parents.
B. Skipped!
C. Reproduction in Seedless Plants
1. The first land plants to inhabit Earth probably were seedless
plants—plants that grow from haploid spores, not from seeds.
2. Moss plants grow by mitosis
and cell division from haploid
spores produced by the diploid generation.
3. The diploid
generations of ferns are the green leafy plants
often seen in forests.
D. How do seed plants reproduce?
1. Unlike seedless plants, the haploid
generation of a seed plant is
located within diploid tissue.
2. A(n) pollen grain
forms from tissue in a male reproductive structure
of a seed plant.
a. Pollen grains produce sperm
b. Pollination
cells.
occurs when pollen grains land on a female
reproductive structure of a plant that is the same species as the pollen grains.
3. The female reproductive structure of a seed plant where the haploid egg develops is
called the ovule
.
a. After fertilization occurs, a zygote forms and develops into a(n)
embryo
, which is an immature diploid plant that develops
from the zygote.
b. An embryo, its food supply, and a protective covering make up
a(n) seed
.
4. Flowerless seed plants are also known as gymnosperms
.
a. The most common gymnosperms are conifers
, which are trees
and shrubs that have needlelike or scalelike leaves.
b. The male and female reproductive structures of conifers are
called cones
.
5. Fruits and vegetables come from angiosperms
, or flowering plants.
a. The male reproductive organ of a flower is the stamen
.
b. The female reproductive organ of a flower is the pistil
c. The ovary
.
of a flower contains one or more ovules.
d. Angiosperm pollen grains travel by wind, gravity, water, or animal from the
anther to the stigma
, where pollination occurs.
e. The ovary and sometimes other parts of a flower will develop into a(n)
fruit
that contains one or more seeds.
f. Fruits and seeds are important sources of food
for people
and animals.
g. When an animal eats a fruit, the fruit’s seeds
through the animal’s digestive system with little or no damage.
can pass