6-Cell Diversity Flashcards
(16 cards)
Tissue
group of similar cells modified/adapted to carry out same function
2 examples of plant tissue
dermal
vascular
2 examples animal tissue
connective
nervous
connective tissue-function
joins/supports body structures e.g. adipose tissue
nervous tissue-function
carries electrical impulses to and from brain and spinal cord
tissue culture
growth of cells in/on a sterile nutrient medium outside of the organism
applications of tissue culture
micro-propagation
monoclonal antibodies for cancer
skin grafts
skin grafts-principle
new skin grown for patients
previously,skin taken from healthy part of body and transplanted
stem cells used to develop into new body tissue
benefits of skin grafts
no need to remove skin from another part of the body
new skin is identical to patient’s skin and not rejected
Micro-propagation
growth of plants from small pieces of tissue under sterile conditions on a suitably selected medium
benefits of micro-propagation
large no. of plants produced
genetically identical
inexpensive
organ
structure composed of a number of tissues working together to carry out one or more functions
2 examples of plant organs
stem and leaves
organ system
number of organs working together to carry out one or more function
2 examples of organ systems
circulatory and digestive
biological organisation
cell-tissue-organ-organ system-organism