cell diversity Flashcards
define tissue
a group of cells that are modified to carry out the same purpose
define meristematic tissue
an area of actively dividing cells
define dermal tissue
provides protection e.g epidermis
define ground tissue
used for packing (bulk of the plant)
define vascular tissue
used for transport e.g xylem/phloem
3 facts about xylem
has hollow tubes, transports water and dissolved minerals, provides support, has lignin
2 facts about phloem
transports food around the plant, is a series of tube like structures
what is epithelial tissue
lines the internal and external surfaces of the body
what is connective tissue
joins and supports other body structures, is arranged in a matrix e.g adipose tissue and blood
what is muscular tissue
tissue that can contract to allow body movement
what is nervous tissue
tissue that responds to stimuli, made of neurons which carry electrical impulses to and from the brain
what is tissue culture
growing cells in a sterile nutrient medium outside an organism… in vitro growth is growth
what is micropropagation
the growth of large numbers of plants from very small plant pieces
what is a monoclonal antibody
an antibody that will react with the antigens on cancer cells
what is skin grafting?
growing skin from stem cells for burn victims
