specialised cells🧊 Flashcards
how are red blood cells specialised
flattern biconcave disc to increase sa:v. flexible so can squeeze through capillaries. no nucleus in mammals
palisade cells
in mesophyll to absorb large amounts of light for photosynthesis
how are palisade cells specialised
thin cell walls increasing diffusion rate. large vacuole to maintain turgor pressure. chloroplast can move within cytoplasm to absorb more light
how are root hair cells adapted
large sa:v to maximise uptake, lots of mitochondria for energy for active transport
how are guard cells specialised
thin elastic outer walls so can bulge outwards, thick less elastic inner walls so can curve open
what are neutrophils
type of white blood cell - role in immune system
how are neutrophils adapted
lots of lysosomes that’s contain enzymes so can attack phatogens. multriloded nucleus so can squeeze through small gaps to get to site of infection
sperm cell specialisation
have flagellum so can move lots of mitochondria for energy, acrosomes which have digested enzymes so digest protected areas around ovum so sperm can penetrate
ciliated epithelia cells specialisation
have cillia to move substances in one direction
cell
smallest unit that can live on its own and makes up all living organisms and tissues
tissue
a collection of differential cells that have a specialised functions in an organism
organ
a part of the body that preforms a specific function
organ system
a group of organs that work together to preform one or more functions
cartilage
connective tissue which prevents ends of bones rubbing together
how has cartilage adapted
contains elastin and collagen so flexible
