Ch 1 - Plentiful Plants (1.1 - 1.4) Flashcards
What is the process by which green plants use the energy of sunlight to change water and carbon dioxide into glucose for food?
Photosynthesis
What are the little pores on the underside of a leaf called?
stomata (stoma)
What do we call the structures that allow the stomata to open and close?
guard cells
What is the green pigment that makes plants green called?
chlorophyll
What are tiny packages of chlorophyll in plant cells called?
chloroplasts
What is the name of the sugar that plants need to live?
glucose
What are the three main structural parts of a leaf?
stem
vein
midrib
What is the name of the waxy coating on a leaf that prevents water escaping?
cuticle
What kind of leaves have a specific design for a specific function?
modified leaves
What are some different types of modified leaves?
tendrils
spines
fleshy storage leaves
trapping leaves
What do we call the colourful leaves surrounding certain flowers such as the dogwood and the poinsettia?
bract
What type of plants trap and digest small insects?
insectivorous plants
Name four insectivorous plants.
Venus’s-flytrap
bladderwort
pitcher plant
sundew
What kind of insectivorous plant has hinged leaves that close like the jaws of a steel trap?
The Venus’s-flytrap
What kind of insectivorous plant has hollow, bladder-like leaves filled with water?
Bladderwort
What kind of insectivorous plant attracts insects with its bright colours and the aroma of its honeylike nectar?
The pitcher plant
What kind of insectivorous plant attracts insects with glistening bait–its sticky “dewdrops”?
sundew
What are the two systems of a plant?
root system
stem system
What is the main job of a root?
The root’s main job is to absorb water and minerals.
What is the one main root of a plant that goes particularly deep?
A taproot
What is the layer of tough protective cells that protects the delicate root tip as the root pushes through the ground?
A root cap
What are the tiny projections near the end of a root that help the root absorb water and minerals?
root hairs
What is the name given to plants that never touch the ground?
epiphytes
Give an example of two epiphytes.
vanilla plant
Spanish moss
What tough, fibrous material forms a strong cell wall around each plant cell?
cellulose
What is the name given to a stem that grows along the surface of the ground?
A stolon (or a runner)
What word means a growth response of a plant to a condition in its environment?
tropism
A plant’s response to gravity is called…
geotropism
A plant’s response to water is called…
hydrotropism
A plant’s response to light is called…
phototropism
A plant’s response to touch is called…
thigmotropism
petal