Stem Cells Flashcards
Stem cells are involved in?
Growth and repair
Name two types of stem cells
Embryonic and tissue
State three specialised cells found in animals
Red blood cell, nerve cell, sperm cell
Name two specialised cells found in plants
Guard cells, root hair cells, palisade mesophyll cells
List the organisation of the body in order increasing size
Cells ~> Tissues ~> Organs ~> systems
Red blood cell function
Carries oxygen to body tissues that require it
Red blood structure
• It’s shape is biconcave
• contains a protein, haemoglobin
• has no nucleus so there is more space to carry O²
Nerve cell structure
Transmission of nerve impulses
Nerve cell structure
• they have axons which means they can send long projectiond to send a signal around the body
Sperm cell function
Transfers genes from male body to female gamete during sexual reproduction
Sperm cell structure
• it has a tail to swim to the egg cell
• contains many mitochondria so it has energy to swim
Root hair cell function
Absorbs water
Root hair cell structure
It has a long extension to increase surface area for absorption
Root hair cell structure
It has a long extension to increase surface area for absorption
What’s a specialised cell
It is a cell that has a particular function
