Transport in Plants definitions

Question 1

Dicotyledonous Plants

Answer 1

Plants with two seed leaves and a branching pattern of veins in the leaf

Question 2

Meristem

Answer 2

a layer of dividing cells, it can be called the pericycle

Question 3

Phloem

Answer 3

transports dissolved assimilates

Question 4

Vascular tissue

Answer 4

consists of cells specialised for transporting fluids by mass flow

Question 5

Xylem

Answer 5

transports water and minerals

Question 6

Companion cells

Answer 6

the cells that help load sucrose into the sieve tissues

Question 7

Sieve tube elements

Answer 7

make up the tubes in the phloem that carry sap up and down the plant, the sieve tube elements are separated by sieve plates

Question 8

Xylem Vessels

Answer 8

the tubes which carry water up the plant

Question 9

Plasmodesmata

Answer 9

gaps in the cell wall containing cytoplasm that connects two cells

Question 10

Transpiration

Answer 10

the loss of water vapour from the aerial parts of a plant mostly from the stomata in the leaves

Question 11

Potometer

Answer 11

a device that can measure the rate of water uptake as a leafy stem transpires

Question 12

adhesion

Answer 12

the attraction between water molecules and the walls of the xylem vessels

Question 13

cohesion

Answer 13

the attraction between water molecules caused by hydrogen bonds

Question 14

Hydrophyte

Answer 14

a plant adapted to living in water or where the ground is very wet

Question 15

Xerophyte

Answer 15

a plant adapted to living in dry conditions

Question 16

assimilates

Answer 16

substances that have become part of a plant

Question 17

sink

Answer 17

a part of the plant where those materials are removed from the transport system

Question 18

source

Answer 18

a part of the plant that loads materials into the transport system

Question 19

translocation

Answer 19

the transport of assimilates throughout a plant