1. Plant Part Functions
A78-81

2. Vocabulary dormancy-period of lower activity
transpiration-giving off of water by plant parts
taproot-one main root growing deeply into the soil, with smaller attached roots
fibrous roots-many roots of same size, growing long but not deep

3. Vocabulary (cont.)
vascular plants- plants that have tubes

4. Main Leaf Types
Needles: needle-shaped to prevent water loss (evergreen, cacti)
Needles are not shed during fall and winter
Broad leaves: wide and flat (oak, maple)
Broad leaves are shed during fall and winter

5. Why do leaves “fall”?
In colder climates, broad leafed trees shed their leaves in the fall.
This is because there is less sunlight available during fall and winter.
Less sunlight means no photosynthesis.
No photosynthesis means no food.
No food means leaves die and fall.

6. Stems Support plants Give them shape
Contain tubes that carry water and minerals from roots to all parts of the plant
Contain tubes that carry food (sugar) from the leaves to all parts of the plant

7. Two Different Stem Types
Soft and flexible-small plants that live only one growing season
Stiff and woody (bark-covered)-these stems grow thicker each year, so these plants can live for many years

8. What is the job of roots? Anchor plants into the soil
Take in water and nutrients for photosynthesis
Some roots actually store food made by leaves

9. An Unusual Adaptation
Some plants living in poor soil adapt by eating meat.
Examples are the Venus Flytrap and cobra lily.
Insects are attracted to the plant smell.
They land and are trapped or fall into liquid and drown, then are dissolved, digested, and their skeletons blown away by the wind.