agriculture flash cards

Stems

Carry substances between roots and leaves; provide support for plant; holds leaves up to sunlight

flower

reproductive part of the plant

Wood

Composed from xylem cells

Xylem

vascular tissue that carries water upward from the roots to every part of a plant

Phloem

Living vascular tissue that carries sugar and organic substances throughout a plant

Transpiration

Evaporation of water from the leaves of a plant

Photosynthesis

Plants use the sun's energy to convert water and carbon dioxide into sugars

cellular respiration

Process that releases energy by breaking down glucose and other food molecules in the presence of oxygen

cell nucleus

the spherical central structure of a cell that contains the chromosomes

Mitochondria

Powerhouse of the cell, organelle that is the site of ATP (energy) production

Vaculoe

a membrane-covered structure used for storage (water, food, and wastes)plants

Chloroplast

Site of photosynthesis

cell membrane

A cell structure that controls which substances can enter or leave the cell.

cell wall

A rigid structure that surrounds the cell membrane and provides support to the cell

radicle

An embryonic root of a plant.

cotyledon

A "seed leaf" which develops as a part of the seed. It provides nutrients to the developing seedling and eventually becomes the first leaf of the plant.

hypocotyl

region of the stem nearest the seed

epicotyl

Part of the embryo in a seed that becomes the upper part of the stem and leaves

Monocotyledon

A subdivision of flowing plants whose members possess one embryonic seed leaf of cotyledon

Dicotyledon

A subdivision of flowering plants whose members possess an embryonic seed leaf made of two halves or cotyledons

Cultivars

a plant variety that has been produced in cultivation by selective breeding

variety

An international taxonomic rank below species for algae, fungi and plants

Species

a group of living organisms consisting of similar individuals capable breeding with each other

Trophism

Response or orientation of a plant to a stimulus that acts with greater intensity from one direction than another

plant stigma

Pollen lands on it (sticky) and produces a pollen tube to reach the ovule.

Anther

the part of a stamen that contains the pollen.

Style

The stalk of a flower's carpel, with the ovary at the base and the stigma at the top.

ovule

A structure that develops within the ovary of a seed plant.

vascular tissue

specialized tissue in plants that carries water and nutrients

meristematic tissue

plant tissue found only in the tips of shoots and roots; responsible for plant growth

Nitrogen deficiency symptoms plants

Sick yellow-green leaves.
Short stems, small leaves, pale colored leaves and flowers.

Phosphorus deficiency symptoms plants

Leaves are darker than normal and loss of leaves

Calcium deficiency symptoms plants

Drying starts from the tips, eventually leaf buds die

Potassium deficiency symptoms plants

Small spots and folding on leaf tips