Biology1 7B Sexual reproduction in animals Flashcards
Name this type of cell.
Sperm Cell
Name this type of cell.
Egg cell
Where are egg cells produced?
Ovaries
Where are sperm cells produced?
Testis / Testicles
Describe and explain 3 adaptations of a sperm cell.
- Tail for swimming
- Streamlined - less energy is expended when swimming
- Little cytoplasm - allows it to be light and small
- Mitochondria - to produce energy for swimming
Describe and explain 2 adaptations of an egg cell.
- Large - easier for cilia to move egg along the oviduct.
- Large - bigger target for sperm cell
- Large - contains a food store
What process is shown in this picture?
Fertilisation
What is implantation?
The embryo implants / sticks to the wall of the uterus.
What is the name and role of part A?
Testes / Testicles - produce sperm
What is the name and the role of part B?
Sperm Duct - Carry the sperm from the testes to the penis.
What is the name and role of part D?
Urethra - Carries urine and sperm out of the body.
What is the name and role of part 1?
The vagina is a muscular tube that leads from the cervix to the outside of the woman’s body
What is the name and role of part 2?
The cervix is a ring of muscle at the lower end of the uterus. It keeps the baby in place while the woman is pregnant.
What is the name and role of part 4?
Uterus - The uterus, also called the womb, is a muscular bag with a soft lining. The uterus is where a baby develops until its birth.
What is the name and the role of part 7?
Ovary - the two ovaries (one of them is called an ovary) contain hundreds of undeveloped female gametes (sex cells).