page 38
brings water up from the roots-nature's straws
what is xylem
prevent plant from being eaten
What is thorns?
Leaves take in carbon dioxide from the air through pores in the leaves
What is stomata?
When a plant grows or moves in response to gravity
What is gravitropism?
One large main root with several smaller roots branching off
What are tap roots?
how plants make food, done in the leaves
what is photosynthesis?
Some can be poisonous when eaten
What is fruits and leaves?
Special cells in leaves
What is chloroplasts?
when a plant grows in response to water
What is Hydrotropism?
Supports the plant and holds the leaves up to the light
What are stems?
protects seed from drying out
what is seed coats?
Uses food and makes CO2 at night
What is respirtion?
Chloroplasts use sunlight to combine water and carbon dioxide.
What is glucose?
When a plant grows in response to light
What is phototropism?
Day temperatures prompt this
What is photosynthesis?
Plant delays germination until the conditions are right
what is dormancy
The evaporation of water
What is transpiration?
plants release water from their leaves.
What is transpiration?
When a plant grows in response to touch
What is Thigmotropism?
Night temperatures prompt this
What is cellular respiration?
The process of seed growing into a mature plant
What is plant development
Several main roots that form a hairy mass
What are fibrous roots?
The product of water, CO2, and sunlight
What is glucose and O2?
How plants respond to their environment, by growing/moving
What is Tropism?
A food storage site on a plant
What is a stem?