Quiz 3: Sexual Reproduction

The hairlike projections on the outside of cells that move in a wavelike manner

Cilia

The condition of having gametes similar in shape, but different in size.

anisogamete

The condition of having anisogametes.

anisogamy

The part of the stamen of a flower that bears the pollen.

anther

An organ in simpler plants that produces sperm cells.

antheridium

An organ in lower vascular plants, gymnosperms, mosses, and liverworts which produces an egg cell.

archegonium

A reproductive organ of gymnosperms having a central axis with radiate scales and bracts. A cone can either produce pollen or ovules.

cone

An act of fertilization involving the transfer of cell contents to another cell. Conjugation usually occurs in simpler organisms.

conjugation

A large gamete with stored food.

egg

Long, whip-like structure extending from a cell used for locomotion.

flagellum

An organ of lower plants, some protists and some fungi that produces gametes.

gametangium

Gamete producing organs in animals

gonad

Cone-bearing plant. Often called evergreen.

gymnosperm

Incapable of independent movement.

immotile

Gametes that are the same in size and shape.

isogamete

Capable of independent movement.

motile

Having gametes of different size and shape. Usually oogamous organisms have eggs and sperm.

oogamous

The condition of being oogamous.

oogamy

The female gonad in animals. It produces eggs. Also, in plants it is the lower portion of the pistil that contains ovules and develops into fruit.

ovary

The egg cell; a female gamete.

ovum

A small, flagellated male gamete that swims to the egg to fertilize it.

sperm

The male organ of plants. It produces pollen.

stamen

The male gonad in animals. It produces sperm.

testis

Stored food material in the eggs of many animals.

yolk

The result of fertilization in which two gametes have fused together. Often simply called a fertilized egg.

zygote