Chaptar 10 Flashcards
Kingdom plantae
A
Botany
The study of plans
Node
A region on a stem where a leaf is or was attached
Taproot system
A root system having one or a few main roots that are thicker and longer than the other roots of the plant
Fibrous root system
A root system having a cluster of
roots that are about equal in size and lacking a taproot
Woody stem
A hard, nonflexible plant stem
Herbaceous stem
A soft, flexible, and often green plant
stem
Vein
In plants, a structure containing vascular tissues in leaf blades
Xylem
A vascular tissue made of long, hollow cells that
carry water and dissolved minerals upward in a plant
Phloem
A vascular tissue that carries dissolved food in a plant
Vascular bundle
A strand of vascular tissue (xylem and phloem) in leaves, nonwoody stems, and young plants
Fiber
The indigestible cellulose and other roughage from
fruits and vegetables essential to good health; (10.2) a long,
thick-walled cell that supports a plant
Epidermis
A tissue that serves as a protective covering in
plants
Stomata
Openings between guard cells of a leaf that permit water vapor and gases to pass into and out
of the leaf
Guard cell
One of the cells that surround a stoma on a
plant leaf and control the opening and closing of the stoma
Transpiration
The release of water from plant leaves
through stomata
Palisade layer
The upper layer of leaf tissue that consists of tall, thin, closely packed cells that carry on the majority of photosynthesis
Spongy layer
The lower layer of leaf tissue consisting of
loosely packed cells that carry on photosynthesis and have
many air spaces between them
Hormone
A chemical produced by living cells that
is transported to other body tissues where it causes a specific
effect
Tropism
The growth of plants in response to external
stimuli such as light (phototropism), gravity (gravitropism),
and touch (thigmotropism)
Phototropism
The growth and movement of a plant part in response to light
Thigmotropism
The growth and movement of a plant part in response to touch
Gravitropism
The growth and movement of a plant part
in response to gravity
Photoperiodism
The response of a plant to changes in the length of light and dark periods
