3.3 Plant transport systems

Question 1

what can small plants do?

Answer 1

absorb all nutrients they need directly from their environment

Question 2

what are the 3 main reasons plants need transport systems?

Answer 2

metabolic demands
size
surface area

Question 3

what are plants that have specialised transport systems called?

Answer 3

vascular plants

Question 4

(metabolic demands) oxygen and glucose need to be transported where?

Answer 4

cells for respiration & other processes

Question 5

(metabolic demands) what needs to be removed from cells and transported?

Answer 5

waste products

Question 6

(metabolic demands) what sort of hormones need to be transported in plants?

Answer 6

auxins for growth

Question 7

(metabolic demands) what needs to be transported in the xylem?

Answer 7

mineral ions

Question 8

as plants get age and grow why do they need transport systems?

Answer 8

to transport things from roots to leaves

Question 9

dicots make seeds containing what?

Answer 9

two cotyledons

Question 10

what are cotyledons?

Answer 10

organs that act as food stores for the developing embryo plant and form the first leaves when the seed germinates

Question 11

what are the features of herbaceous dicots?

Answer 11

soft tissues
short life cycle
leaves & stems die at the end of the growing system

Question 12

what are arborescent dicots?

Answer 12

woody

have hard lignified tissues and long life cycle

Question 13

dicotyledonous plants have a vascular system what is this?

Answer 13

a series of transport vessels running through the stem, roots and leaves

Question 14

vascular systems and arranged in what?

Answer 14

vascular bundles

Question 15

in the stem of herbaceous plants how are vascular bundles arranged and why?

Answer 15

around edge to give strength and support

Question 16

what does the cambium make?

Answer 16

xylem and phloem

Question 17

in the root of herbaceous plants how are vascular bundles arranged and why?

Answer 17

in the middle to help withstand tugging strains resulting as the stems and leaves are blown in the wind

Question 18

in the midrib of the dicot leaf is the main vein carrying vascular tissue what does it help do?

Answer 18

helps support the structure of the leaf

Question 19

leaves are adapted to have what?

Answer 19

large surface area to volume ratio

Question 20

when stems, trunks and roots are added plants have a small…

Answer 20

surface area to volume ratio

Question 21

due to their small surface area to volume ratio what cant plants rely on?

Answer 21

simple diffusion