Biology (Plants parts and Human reproduction )

Root System

All of the plant's roots that anchor it into the soil, absorb and transport minerals and water, and store food.

Root Cap

Cells at the end of a plants root tips that protects the roots apical meristem(growing tip)

Root Hair

The part of a plants shoot system that supports the leaves and reproductive structure

Leaf

primary site of photosynthesis in plants; consist of a flattened blade and stalk which attaches the leaf to the stem.

Flower

The reproductive structure of an angiosperm. Before the flower opens it's called a bud. Has sepals petals stamens and carpels

Sepal

Cover the bud until it opens. The modified leaves that surround the reproductive parts of the flower are petals

Fruit

The ripeened, which ovary, female part, of a flower; protects the dormant seeds and aids in their dispersal

Seed

an embryonic plant enclosed in a protective outer covering, with some stored food.

Cones

Found in gymnosperms( conifers) reproductive part bearing pollen or ovules; cones are male or female. Male is smaller with pollen. Female is larger

Vascular tissue

Plant tissue in which cells are joined into tubes that transport nutrients and water throughout the plant. Vascular plants include the Ferns, gymnosperms, and angiosperms. Mosses are an example of non-vascular plants (plants without vascular tissue) in which water and nutrients are transported by osmosis and diffusion.

Cambium

In plants, the tissues from which phloem and xylem are created by mitosis. Cambium growth results in increased stem diameter .In plants, the tissues from which phloem and xylem are created by mitosis. Cambium growth results in increased stem diameter. In plants, the tissues from which phloem and xylem are created by mitosis. Cambium growth results in increased stem diameter.

Xylem

The non-living portion of a plant's vascular system that provide support. In addition, water travels up the xylem to the rest of the plant.

Phloem

The portion of a plant's vascular system that conveys the sugars, nutrients, and hormones throughout the plant.

Ground tissue

Tissue that makes up the bulk of a young plant. It fills the space between the epidermis and the vascular tissue system.

Dermal Tissue

Composed of closely packed epidermal cells that secrete the waxy cuticle that covers the outside of non-woody Me(herbaceous) plants.

Meristematic tissue

Plant tissue that consists of undifferentiated cells, which divide and create new cells and tissues (much like stem cells in animals). This tissue produces growth at the tips of the stems and root tips.

Guard cells

Specialized cells often in the underside of the plant leaf that regulate the size of a stoma, allowing gas exchange between the surrounding air and the photosynthetic (chloroplast-containing) cells in the leaf.

Stomata

Pores (holes) surrounded by the guard cells in the epidermis of the leaf. When open, carbon dioxide (CO2) enters the leaf, water and oxygen exit. When closed, the plant is conserving water, but no gases enter or leave the leaf.

Transpiration

is the process in which water molecules are evaporated through the stomata on the underside of a leaf. This process results in a chain of water molecules through the plant (from roots to the leaves). As a result of the cohesion water molecules have for one another. Combined with the adhesive properties of water, it can climb through the xylem tubules.

Spores

Haploid cell that can develop into a multicellular individual

Stamens

Male reproductive part in a flower composed of anthers

Pistil

The female reproductive part of a flower

Anther

Produces pollen/sperm

Filament

A stalk like structure which bears the anthern

Ovary

In human females, organs that produce egg cells and reproductive hormones.

oviduct (fallopian tube)

The tube through which an egg passes on its way from the ovary to the uterus.

Uterus

In mammals, the organ in which the fertilized egg implants and develops into a fetus.

Cervix

neck of the uterus that opens into the vagina

Vagina

The birth canal in mammals. It is the part of the female reproductive system that opens to the outside,

Seminal vesicle

A gland in males that secretes the fluid component of semen, which lubricates and nourishes sperm.

Prostate Gland

- A gland in human males that secretes an acid-neutralizing component of semen.

Vas deferens

The part of the male reproductive system through which sperm leaves the testes. In humans it is also called the sperm duct, the tube through which sperm moves from the epididymis to the urethra.

Urethra

males the urethra conveys semen out of the body during ejaculation. It is also the passageway urine takes from the bladder to the outside

Epidimys

long coiled tube in which sperm mature and are stored after leaving the testis.

Scotum

The pouch of skin outside of the abdomen that houses testes. Once in the scrotum, sperm cool and therefore remain viable longer.

Penis

The organ used in copulation

Testicle(testis)

Male organ which produces sperm and male reproductive hormones