3.3 Plant transport systems Flashcards Preview

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Flashcards in 3.3 Plant transport systems Deck (21):
1

what can small plants do?

absorb all nutrients they need directly from their environment

2

what are the 3 main reasons plants need transport systems?

metabolic demands
size
surface area

3

what are plants that have specialised transport systems called?

vascular plants

4

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

cells for respiration & other processes

5

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

waste products

6

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

auxins for growth

7

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

mineral ions

8

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

to transport things from roots to leaves

9

dicots make seeds containing what?

two cotyledons

10

what are cotyledons?

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

11

what are the features of herbaceous dicots?

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

12

what are arborescent dicots?

woody
have hard lignified tissues and long life cycle

13

dicotyledonous plants have a vascular system what is this?

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

14

vascular systems and arranged in what?

vascular bundles

15

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

around edge to give strength and support

16

what does the cambium make?

xylem and phloem

17

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

18

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

19

leaves are adapted to have what?

large surface area to volume ratio

20

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

surface area to volume ratio

21

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

simple diffusion

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