Definitions- Chapter 4 Flashcards
Anther Definition
The part of the flower that produces pollen.
Asexual reproduction definition
A form of reproduction where only one parent produces the offspring and no joining sperm and eggs is involved
Petal Definition
Colour and design attract insects
Nectar Definition
Produces sugar and fragrance to attract animals
Stamen Definition
Male organ of flower, the filament and anther
Filament Definition
Supports anther
Carpel Definition
Female organ of flower consists of stigma, style, ovary and ovule
Stigma Definition
Pollen is deposited here during pollination
Style Definition
Supports stigma, pollen grows a pollen tube down the style ovary
Ovary Definition
Store ovules, location of fertilisation and seed development
Ovule Definition
Female sex cell produced in ovary
Pollen Definition
Male sex cell produced in pollen sacks of the anther
Embryo Definition
A developing offspring at a very early stage of development before the major organ systems are formed
Fallopian tubes Definition
Tubes down which the egg passes for fertilisation
Foetus Definition
The stage of development when most of the major organs and systems are present.
Germination Definition
When the young growing plant sprouts out of the seed
Hermaphrodite Definition
An individual with both male and female sex cells Eg a tape worm
Mitosis Definition
When the cell nucleus divides into two nuclei
Ovaries def
Organs that produce eggs
Parthenogenesis Definition
A form of reproduction where offspring develop from eggs that have not been fertilised by male sperm
Reproduction Definition
The process of parents producing new individuals or offspring
Scrotum Definition
A sac that hangs outside the body containing the testes
Semen Definition
A mixture of sperm and other fluid released from the penis
Sexual reproduction Definition
The process of a sperm and an egg joining together and then growing into a new individual
Sperm duct Definition
A tube carrying sperm from the testes to the urethra
Uterus Definition
The organ in which the foetus grows and develop
Zygote Definition
The first cell of the new individual after fertilisation
