YKSD
Biology Key Points
Chapter 4"Classifying Plant
Groups "
Lesson
1 "How Plants are Classified"
Key Vocabulary Terms
- Seed
- A plant part that contains a beginning plant and stored food.
- Fern - a seedless
vascular plant
- Moss - a nonvascular
plant that has simple parts.
- Vascular plant - a
plant that has tubelike cells.
- Vascular tissue -
A group of plant cells that forms tubes through which food and water move.
- Nonvascular plant
- A plant that does not have tubelike cells.
Key
Concepts
- The
three main groups of plants are seed plants, ferns, and mosses.
- Carolus Linnaeus developed
the classification system of organisms that is used today.
- The two-word name
that makes up the scientific name of each organism is the genus and species.
- Vascular plants have
tubelike cells; Nonvascular plants do not have tubelike cells.
- Vascular tissue transports
food and water and supports the plant.
Did
you learn these Objectives?
- Are
you able to explain how plants are classified?
- Can you describe the
history of the classification of plants?
- Are you able to tell
the difference between vascular and nonvascular plants?
Lesson
2 "Seed Plants"
Key Vocabulary Terms
- Embryo
- A beginning plant
- Angiosperm - a flowering
plant
- Monocot - An angiosperm
that has on seed leaf
- Dicot - an angiosperm
that has two seed leaves
- Cotyledon - A structure in the seeds of angiosperms that contains food
for the plant
- Gymonosperm - a nonflowering seed plant
- Conifer - a cone-bearing gymnosperm
Key
Concepts
- Flowering
plants are called angiosperms and nonflowering seed plants are called gymnosperms.
- Dicots have two seed
leaves and a crisscross pattern of veins.(eg. Roses and beans)
- Monocots have one
seed leaf and a parallel pattern of veins.(eg. grasses and corn)
- Seeds in gymnosperms are not enclosed in a fruit.
- Conifers can live where others can not because their leaves are shaped
like needles, so they do not lose water as easily as do broad leaves.
Did
you learn these Objectives?
- Are
you able to explain how seed plants are different from the other plant groups?
- Can you explain the
differences between angiosperms and gymnosperms?
- Can you explain the
differences between dicots and monocots?
Investigation
4 "Identifying Angiosperms" (Optional, must complete 10 total investigations)
Key
Concepts and Objectives
- You
will use your skills of observing, classifying, describing, comparing, and
recalling facts to identify 5 different kinds of leaves as Angiosperm or
Gymnosperm.
- You will develop an
organized chart that will help you answer four high level questions.
Lesson
3 "Seedless Plants"
Key Vocabulary Terms
- Frond
- a large feathery leaf of a fern
- Sori - clusters of
reproductive cells on the underside of a frond
- Spore - the reproductive
cell of some organisms
- Rhizome - a plant
part that has shoots aboveground and roots belowground
- Rhizoid - a tiny rootlike
thread of a moss plant
- Humus - decayed plant
and animal matter that is part of the topsoil
Key
Concepts
- Ferns,
mosses, and related plants do not have seeds.
- Nonvascular means
that the plants do not have highly developed vascular tissue for transporting
water.
- Seeds usually survive
longer than spores when conditions are dry.
- Unlike seeds, spores
do not have a seed coat that hold in moisture.
- Mosses need to live
in moist, humid places because they do not have vascular tissue to transport
water.
Did
you learn these Objectives?
- Are
you able to list vascular and nonvascular plants that are seedless?
- Can you describe similarities
and differences between ferns and seed plants?
- How do you describe
mosses and how they grow?
Chapter
Summary and Review
See page
82-83
Chapter
4 Review answers are