Specialised Cells Flashcards
1
Q
Specialised Cells
A
Cells that have a structure which makes them adapted to their function
2
Q
Haploid Cell
A
A cell only contains half the number of chromosomes that’s in a normal body cell
3
Q
Egg cell
A
Main function: carry the female DNA and nourish the developing embryo
• contains nutrients in the cytoplasm to feed the embryo
• has a haploid nucleus
• membrane changes structure after fertilisation to stop more sperm getting in
4
Q
Sperm cell
A
Main function: transport male’s DNA to the female’s egg
• long tail so it can swim
• lost of mitochondria to provide it with energy
• acrosome where it stores enzymes needed to digest its way through the membrane of the egg cell
• contains haploid nucleus
5
Q
Ciliated Epithelial Cells
A
- line the surfaces of organs
- have cilia on the top
- function is to move substances - cilia beat to move substances in one direction, along the surface of the tissue
