Plant tissue

Question 1

Give 2 functions of the root

Answer 1

• absorb water

* anchor the plant in the ground

Question 2

Functions of stem (3)

Answer 2

• hold plant upright
• hold leaves in position to absorb sunlight
• grow

Question 3

Functions of the leave (2)

Answer 3

• photosynthesize

* transpiration

Question 4

Give a function of a flower

Answer 4

• reproduction

Question 5

what is embryonic tissue

Answer 5

• can divide by mitosis

* differentiate into any permanent tissue

Question 6

what is dermal tissue

Answer 6

covers the plant body

Question 7

what is vascular tissue

Answer 7

transport in the plant

Question 8

name the different kinds of plant tissue

Answer 8

• embryonic tissue
• dermal tissue
• ground tissue
• vascular tissue

Question 9

Give the function of meristematic tissue

Answer 9

Divide by mitosis

plant growth & renewal

Question 10

structure of meristematic tissue

picture this😌

Answer 10

• small brick shape
• large round nucleus
• no vacuole
• no intercellular air spaces

Question 11

Name and describe 2 places where meristematic tissue can be found in a plant

Answer 11

• Apical meristem:

- found in tips of roots & stems 
- divide to allow primary growth in roots and stems 

• Lateral meristem / cambium

- found in stems 
- located between xylem & phloem 
- allow stem to grow wider & development of lateral roots

Question 12

Location of Epidermal Tissue

Answer 12

outer layer of roots, stems and leaves

Question 13

Function of epidermal tissue

Answer 13

protects the plant against drying out & mechanical injury

Question 14

structure of epidermal tissue

Answer 14

• regular - shaped
• no intercellular spaces
• thin call walls
• transparent
• covered in waxy cuticle

Question 15

Give 2 instances where the dermal tissue has to be “modified” to allow the plant to perform special functions

Answer 15

• Root hair: absorption of water

* Stomata: allow gases to come and go

Question 16

structure of root hair

Answer 16

• thin elongated cell

* large vacuole

Question 17

function of root hair

Answer 17

absorption of water

Question 18

structure of stomata

Answer 18

• kidney lookin tings
• inner wall thicker than outer
• has vacuole
• has chloroplasts

Question 19

function of stomata

Answer 19

allow gaseous exchange and transpiration

Question 20

function of trichrome (2)

Answer 20

• help plant against water loss

* plant defense against insects

Question 21

location of trichome

Answer 21

epidermal hairs on stems and leaves

Question 22

structure of trichome

Answer 22

singular or multicellular hairs

Question 23

Name 2 functions of ground tissue

Answer 23

• fills spaces

* provides mechanical support inside the plant

Question 24

what are the different types of ground tissue? (4)

Answer 24

• parenchyma
• chlorenchyma
• collenchyma
• sclerenchyma

Question 25

what is the functions of parenchyma? (4)

Answer 25

* storage of water, sugars, starch * control turgor pressure * filling/packing * circulate gases

Question 26

where is parenchyma found?

Answer 26

everywhere

Question 27

structure of parenchyma

Answer 27

* thin walled * large vacuoles * usually round * have intercellular spaces

Question 28

location of chlorenchyma

Answer 28

palisade and spongy mesophyll found in the leaf

Question 29

structure of chlorenchyma

Answer 29

specialized parenchyma that are filled with chloroplasts

Question 30

function of chlorenchyma

Answer 30

photosynthesis

Question 31

function of collenchyma

Answer 31

mechanical support | strengthening

Question 32

structure of collenchyma

Answer 32

thick walls that’s are especially thick at their corners

Question 33

location of collenchyma

Answer 33

petiole, stems of herbaceous plants

Question 34

where is sclerenchyma found

Answer 34

* found in stems and also leaf veins * hard outer covering of seeds and nuts * some fruits

Question 35

function of sclerenchyma

Answer 35

* mechanical support * strength * protection

Question 36

what is the function of sclerenchyma fibres?

Answer 36

* support and mechanical strength | * important sources of raw material for textiles and other woven goods

Question 37

where is sclerenchyma fibres found

Answer 37

stems and leaf veins

Question 38

function is sclerenchyma sclereids

Answer 38

• support & mechanical strength

Question 39

structure of sclerenchyma sclereids

Answer 39

* have diff shapes * highly thickened walls * no living cell components

Question 40

location of stone cells

Answer 40

* hard shells of nuts & many seeds | * gritty texture of fruit

Question 41

Functions of vascular tissue (3)

Answer 41

* transporting tissue in the plant * water & mineral salts needs to move from soil to the roots to the leaves * organic food made during photosynthesis needs to move down from leaves to rest of the plant

Question 42

name the 2 types of vascular tissue

Answer 42

xylem & phloem

Question 43

location of xylem

Answer 43

in vascular steele of roots and vascular bundles of stems & leaves

Question 44

function of xylem

Answer 44

* transport water & dissolved minerals from the roots to the leaves * strengthened with lignin & serves as a supporting tissue

Question 45

what do xylem vessels and tracheids have in common?

Answer 45

* long & thin * hollow * cells walls thickened with cellulose & lignin * pits

Question 46

structure of xylem vessel

Answer 46

* vessels wider - cylindrical tubes | * have perforation plates -> stack one on the other

Question 47

structure of xylem trachied

Answer 47

* longer & thinner | * ends taper

Question 48

location of phloem

Answer 48

in vascular steele of roots & vascular bundles of stems and leaves

Question 49

function of phloem

Answer 49

• transports food & organic molecules from leaf to rest of the plant THATS TRANSLOCATION DUDE

Question 50

structure of phloem (4)

Answer 50

* sieve tubes & companion cells * end walls of sieve tubes are perforated to form sieve plate * living but have no nucleus * thin to slightly thickened walls * pits & plasmodesmata