Download Ch.-2-notes - North Star Academy

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Topic: Chapter2-Energy from
Plants
Questions/Main Ideas:
Notes:
VOCABULARY
Photosynthesis
How plants make their own food using light
chlorophyll
Makes plants green, captures energy from sunlight for photosynthesis
sepal
Small leaves below flowers
pistil
Knoblike structure in center of flower
stamen
Stalks that surround pistils, makes pollen
ovary
Part of plant that contains egg cells
fertilization
When a plant cell and egg combine
dormant
Resting
Lesson 1: What are plants’
characteristics?
Cells
Plants need:
Chloroplast
Describe process of
photosynthesis
Lesson 2: What are the parts
of plants?
Leaves
Stems
Roots: fibrous vs. taproots
Lesson 3: How do plants
reproduce?
Stamen
Nectar
Wind
Lesson 4: What is the life cycle
of a plant?
Plants need:
-
A multi-celled organism that has leaves, stems, and roots
Plants are multi-celled organisms (have many cells)
o All plants have cells
Sunlight, water, carbon dioxide (from the air)


Where photosynthesis takes place
Contains chlorophyll, which makes plants green
1. plants take in carbon dioxide, water, and sunlight energy
2. turn those things into sugar (food)
Pine needle and tulip leaves both are leaves
- Carries water, minerals, and food (materials)
- Supports the plant
Fibrous-roots grow away from the stem and spread out (grasses and trees)
Taproot- large main root that contains stored food (carrots, turnips, radishes)
SIMILAR: both anchor plants and absorb water and minerals from soil
Makes pollen
- Helps flowers become pollinated
- Animals looking for nectar spread pollen
- blows the pollen from grass into the pistil of another grass plant
- a pollen tube grows from the pollen into the ovary
- the cell from the pollen and the egg cell in the ovary combine for
fertilization to make a new plant
Water, oxygen, right temperature,
 Plants turn sunlight into energy for reproduction
Spores
Seeds
How do plants reproduce without
seeds?
A single tiny cell
Can stay dormant for many years, needs moist environment
Ex. Ferns, moss,
Separate from the parent plant
-
Summary:
From stems/ runners (strawberries, African violet plant), roots, or
leaves
Bulbs (tulip)
Buds (potato)
Grafting branches to another tree