40 terms

Life Science, Chapter 10 & 11

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Terms in this set (...)

botany
The study of plants.
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, non-flexible plant stem.
herbaceous stem
A soft, flexible, and often green plant stem.
vein
In plants, a vein is a system of tubes (xylem and phloem) used for transporting both water and food.
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.
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.
plants
Belong to Kingdom Plantae
producers
Make their own food
vascular tissue
A plant tissue, such as xylem and phloem, that conducts water and other materials in plants.
nonvascular tissue
A plant that lacks the tissues to conduct water and other materials.
rhizoid
A thin, root-like structure found in fungi and mosses.
seedless vascular plant
A plant that has tissues that conduct water and other materials but does not reproduce by forming seeds, such as ferns, club mosses, and horsetails.
seed plant
A vascular plant that produces seeds through sexual reproduction, such as angiosperms and gymnosperms.
angiosperm
A flowering plant that produces seeds surrounded by a protective covering called a fruit.
gymnosperm
A nonflowering plant that produces seeds not fully covered or shielded from the environment as in a cone.
sepal
One of the outermost appendages of a flower that often appears small, green, and leaf-like.
petal
One of the appendages of a flower that is usually colorful and often functions to attract pollinators.
stamen
The male reproductive structure of a flower that is composed of an anther and a filament.
pollen
The structure that contains the male gamete of a plant and is produced in the anther and covered by a protective coating.
pistil
The female reproductive part of a flower, which is composed of the stigma, style, and ovary.
ovary
In plants, the part of the pistil containing ovules and eventually maturing into a fruit surrounding the seeds.
stigma
The expanded tip of the pistil on a flower that receives pollen.
pollination
The transferring of pollen from the anther to a stigma.
ovule
The structure in a plant ovary that contains the egg and will develop into a seed when fertilized.
seed
A mature plant ovule consisting of an embryo and stored food enclosed by a seed coat.
fruit
The mature ovary of a flower that typically contains seeds.
cotyledon
The source of stored food in a seed that aids growth.
pinnate leaf venation
one main vein runs the length of the leaf with smaller veins branching off of it
parallel leaf venation
veins are side by side
palmate leaf venation
veins that branch from the base of the leaf at a single point
alternate leaf arrangement
1 leaf at each node
opposite leaf arrangement
2 leaves at each node
whorled leaf arrangement
3 or more leaves per node

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