Exam 4 Ch 20

Question 1

What is the apical meristem

Answer 1

Tissue present at the very top and very bottom of a plant

Can develop into the epidermal, ground and vascular tissues of a plant

Question 2

3 Ground tissues

Answer 2

Parenchyma
Collenchyma
Sclerenchyma

Question 3

Parenchyma

Answer 3

Found in all organs of a plant

May contain chloroplasts and carry out photosynthesis or store products for photosynthesis

Question 4

Collenchyma

Answer 4

Form bundles beneath the epidermis and give support to immature regions

Question 5

Sclerenchyma

Answer 5

Contain lignin which make plant cells walls tough and hard

Give support to mature regions

Question 6

Xylem

Answer 6

Vascular tissue that transports water and mineral solutes upward through the plant body

Question 7

Phloem

Answer 7

Vascular tissue that transports sugar in the form of sucrose and other materials

Question 8

Epidermal layer in woody plants

Answer 8

Epidermis is replaced by cork made from meristem cells
Become waterproof a
Protects plant

Question 9

Epidermal Layer in non woody plants

Answer 9

Covered by a waxy cuticle to minimize water loss and prevent disease
Contains stomata in leaves

Question 10

Monocots

Answer 10

1 cotyledon in seed
Root xylem and phloem in a ring
Vascular bundles scattered
Flower parts in 3s and multiples of 3

Question 11

Eudicots

Answer 11

2 cotyledons in seed
Root phloem in between arms of xylem
Vascular bundles in a distinct ring
Flower parts in 4s or 5s and multiples of 4 and 5

Question 12

Deciduous

Answer 12

Plants that lose their leaves during a particular season (Often for water conservation)

Question 13

Evergreen

Answer 13

Plants that retain their leaves all year

Question 14

Layers of a leaf

Answer 14

Waxy cuticle
upper epidermis
palisoade mesophyll
air space
spongey mesophyll
lower epidermis

Question 15

Waxy cuticle

Answer 15

Prevents water loss

Question 16

Mesophyll

Answer 16

Carries out photosynthesis

Question 17

Vascular Tissue

Answer 17

Transports water and minerals to a leaf and the product of photosynthesis away from the leaf

Question 18

Lower Epidermis

Answer 18

Contains stomata, allowing gas exchange

Question 19

Zones of Roots

Answer 19

Zone of Cell Division
Zone of Elongation
Zone of Maturation

Question 20

Zone of Cell Division

Answer 20

Contains dividing cells of apical meristem

As more cells are made, older cells get pushed into the zone of elongation

Question 21

Zone of elongation

Answer 21

Cells lengthen and become specialized

Question 22

Zone of Maturation

Answer 22

Contains full differentiated cells and epidermal cells with root hairs

Question 23

What kind of nutrition do plants need

Answer 23

Require only inorganic nutrients to make their organic compounds

Question 24

How are nutrients transported

Answer 24

Water and minerals are taken up by root hairs
WAter enters cells by osmosis
Water exits leaf and creates tension

Question 25

Pressures that allow nutrients to move through a plant

Answer 25

Cohesion and Adhesion

Water molecules cling together(Cohesion)
Water molecules also stick to xylem walls (Adhesion)