Plant Tissues

Question 1

• Derived from shoot and root apical
• primary tissues

Answer 1

Primary Plant Body (Herbaceous Body)

Question 2

• Plant that never becomes woody
• lives >1yr

Answer 2

Herb

Question 3

• derived from meristems other than apical meristems
• secondary tissues (wood & bark)

Answer 3

Secondary plant body (woody body)

Question 4

Has primary tissues at its root and tips
Secondary tissues arise inside the primary tissues

Answer 4

Woody plant

Question 5

Group of cells that perform specific function

Answer 5

Tissues

Question 6

Classification based on stage of development

Answer 6

Embryonic / meristematic
Permanent

Question 7

Actively dividing development

Answer 7

Meristematic

Question 8

Classification based on composition

Answer 8

Simple (one type)
Complex (diss. Types)

Question 9

Meristematic classification based on: INITIATING CELLS (origin)

Answer 9

Primary meristem
Secondary mersitem
Promeristem (primordial meristem)

Question 10

Meristematic classification based on: position in the plant body (location)

Answer 10

Apical (length)
Intercalary (elongation)
Lateral (thickness)

Question 11

Meristematic classification based on: FUNCTION

Answer 11

Protoderm (dermatogen) - epidermis/dermal tissue system
Procambium (plerome) - primary vascular tissue
Fundamental/ground (periblem) - ground tissue

Question 12

No longer dividing
Stable cells

Answer 12

Permanent Tissues

Question 13

Types of permanent tissues

Answer 13

Simple permanent tissues
Complex permanent tissue

Question 14

Classified based on the nature of the cell wall
One type of cells
Dermal/protective/ground/fundamental

Answer 14

Simple Permanent tissue

Question 15

Vascular
Diff kinds of calls but similar function

Answer 15

Complex permanent tissue

Question 16

Mass of parenchyma cells
Soft parts of the plant

Answer 16

Parenchyma Tissue

Question 17

Thin walls / Large Vacuole
Alive at maturity
Subtypes specialized for tasks
Most common

Answer 17

Parenchyma cells

Question 18

Parenchyma cell: involved in photosynthesis

Answer 18

Chlorenchyma cells

Question 19

Parenchyma cells: short distance transport of material

Answer 19

Transfer calls

Question 20

Parenchyma cells: secrete nectar, fragrances, mucilage, resins and oils

Answer 20

Glandular cells

Question 21

Parenchyma cells: Large intercellular spaces, specializes in gas exchange

Answer 21

Aerenchyma

Question 22

Mass of collenchyma cells

Answer 22

Collenchyma tissue

Question 23

Unevenly thickened primary walls
Alive at maturity
PLASTICITY
Shoot tips and young petioles

Answer 23

Collenchyma cells

Question 24

Mass of Sclerenchyma cells

Answer 24

Sclerenchyma tissues

Question 25

Lignified primary nd secondary walls Dead at maturity ELASTICITY Water transport

Answer 25

Scelerenchyma cells

Question 26

Inflexible and brittle hard impenetrable surfaces

Answer 26

Sclereids (stone cells)

Question 27

FLEXIBLE Elongates as the internode length increas Resists insects

Answer 27

Fibers

Question 28

Common source for paper and linen cloth

Answer 28

Flax fibers

Question 29

Water conducting cells Movement of water in pits

Answer 29

Tracheids

Question 30

Large perforation for easy water movement

Answer 30

Vessel Elements

Question 31

Outermost surface of herbaceous stem Protection, material regulation Encrusted w CUTIN Guard cells, trichomes, root hairs

Answer 31

Epidermis (simple dermal parenchyma)

Question 32

Guard + stomatal pore =

Answer 32

Stoma / stomata

Question 33

Epidermis: serves as WATER RESERVOIR

Answer 33

Accessory cells

Question 34

Epidermis: longitudinal rows of VACUOLATED CELLS

Answer 34

Bulliform cells

Question 35

For the ELONGATION of the epidermal cell outward

Answer 35

Epidermal hair

Question 36

Epidermal outgrowths/hairs

Answer 36

Trichomes

Question 37

Outer covering of WOODY stems Suberin Produced by the cork cambium NO INTERCELLULAR SPACES

Answer 37

Cork/ Phellem

Question 38

Vascular tissue system

Answer 38

Xylem Phloem

Question 39

Brings water and mineral salts from root to plant

Answer 39

Xylem

Question 40

Complex tissue: Moves food

Answer 40

Phloem

Question 41

Xylem consists of :

Answer 41

Tracheids, vessels, xylem parechyma, xylem fibres

Question 42

Xylem: stores water and minerals

Answer 42

Xylem parenchyma

Question 43

Phloem consists of:

Answer 43

Sieve tubes, companion cells, phloem parenchyma, phloem fibres

Question 44

Phloem: transports food from leaves to all parts of the plant

Answer 44

Sieve tubes, companion cells

Question 45

Phloem: stores food

Answer 45

Phloem parenchyma

Question 46

processes by which distinct cell types arise from precursor cells

Answer 46

Differentiation