Biology - Reproduction (unit 1)

asexual reproduction

organism can reproduce on its own (unicellular organism done by cell division)

sex cells (gametes)

for reproduction to occur an organism produces gametes

these gametes are produced in specialised organs

for fertilisation to occur

the nuclei of both sex cells have to fuse together to create a zygote

sperm

very small

no food store

tail to propel towards egg

egg (ova)

large

food store

unable to mive on its own

haploid cells

single set of chromosomes that cannot be arranged into pairs of gametes

diploid

sets of chromosomes that can be arranged into pairs

flowering plants contain

male and female reproductive organs

the male gametes in flowers are

pollen grains in the anther

female gametes in flowers are called

ovules produced in the ovary

continouos variation