tissue, organs and systems

Question 1

xylem

Answer 1

tubes that transports water and minerals in one direction, from the roots to the leaves

Question 2

phloem

Answer 2

tubes that transports sugars and other nutrients in two directions, to all the cells of the plant

Question 3

stomata

Answer 3

he opening in the centre of a turgid stoma, where gases freely enter or exit a leaf

Question 4

guard cell

Answer 4

a pair of curved cells that surround a stoma. When hot they lose turgor pressure and become flaccid, closing the stomata to limit water loss

Question 5

transpiration