Science Cells & Life test Flashcards
cell membrane
thin membrane that controls what goes in and out of the cell
cytoplasm
many important reactions take place here
nucleus
controls the cell and stores genetic information
mitochondria
this is where respiration takes place - an important reaction in all living things to release energy from food
cell wall
provides support, and is strengthened with cellulose
chloroplast
this is where photosynthesis takes place - an important reaction in plants to produce glucose: the plant’s source of ‘food’. The way a plant has nutrition
vacuole
helps to provide support in combination with the cell wall
ovary
site of egg storage
egg cell
the reproductive cells in females- assigned at birth
uterus (lining and wall)
the muscular ‘bag’ in which the baby develops
embryo
the early developmental stage of an animal while it is in the egg or within the uterus of the mother
fetus
an unborn offspring that develops and grows inside the uterus (womb) of humans and other mammals
vagina
tube into which the penis enters
cervix
‘doorway’ between vagina and uterus
cilia
small, slender, hair-like structures present on the surface of all mammalian cells
fallopian tube/oviduct
tubes along which eggs pass
ovulation
when an egg is released from the ovum
penis
outer part of male reproductive system - delivers sperm
urethra
tube through which sperm travel
testes
2 small organs that are found inside the scrotum
scrotum
holds the testicles outside the body
sperm duct/tube (vas deferens)
other tube through which sperm travel
sperm cell
sperm are male sex cells with three main parts: a head, midpiece and tail
fertilisation (sex)
a zygote is created when the nucleus from the sperm fuses with the nucleus of the egg/ovum
menstruation (period)
a period is the part of the menstrual cycle when a woman bleeds from her vagina for a few days
erection
erection - when a penis becomes hard and enlarged from an increase in blood flow
ejaculation
the expulsion of semen from the penis
amniotic fluid
a clear, slightly yellowish liquid that surrounds the unborn baby (fetus) during pregnancy
umbilical cord
A tube that provides oxygen and nutrients to the baby while getting rid of waste products
placenta
an organ that forms in the womb, also called the uterus, during pregnancy
