Flashcards in 3.3 Plant transport systems Deck (21):
what can small plants do?
absorb all nutrients they need directly from their environment
what are the 3 main reasons plants need transport systems?
what are plants that have specialised transport systems called?
(metabolic demands) oxygen and glucose need to be transported where?
cells for respiration & other processes
(metabolic demands) what needs to be removed from cells and transported?
(metabolic demands) what sort of hormones need to be transported in plants?
auxins for growth
(metabolic demands) what needs to be transported in the xylem?
as plants get age and grow why do they need transport systems?
to transport things from roots to leaves
dicots make seeds containing what?
what are cotyledons?
organs that act as food stores for the developing embryo plant and form the first leaves when the seed germinates
what are the features of herbaceous dicots?
short life cycle
leaves & stems die at the end of the growing system
what are arborescent dicots?
have hard lignified tissues and long life cycle
dicotyledonous plants have a vascular system what is this?
a series of transport vessels running through the stem, roots and leaves
vascular systems and arranged in what?
in the stem of herbaceous plants how are vascular bundles arranged and why?
around edge to give strength and support
what does the cambium make?
xylem and phloem
in the root of herbaceous plants how are vascular bundles arranged and why?
in the middle to help withstand tugging strains resulting as the stems and leaves are blown in the wind
in the midrib of the dicot leaf is the main vein carrying vascular tissue what does it help do?
helps support the structure of the leaf
leaves are adapted to have what?
large surface area to volume ratio
when stems, trunks and roots are added plants have a small...
surface area to volume ratio