Chapter 5

Question 0

Immature plantlet

Answer 0

Embryo

Question 1

When a seed germinates the tiny root like “ “ A part of the embryo that grows out and develops into the first root

Answer 1

Radicle

Question 2

The radical may develop into a thick tapered “ “ from which thinner blank arise, or many blank may arise from the stem which is attached to the radicle and continues with it

Answer 2

Taproot, branch roots, adventitious roots

Question 3

Those that do not develop from another route but develop instead from a stem or lease

Answer 3

Adventitious roots

Question 4

May have large numbers of fine roots of similar diameter, then develops from the adventitious roots

Answer 4

Fibrous root system

Question 5

Greatly increase the total surface of the route

Answer 5

Root hairs

Question 6

Many plants, such as peas and carrots, whose seeds have two seed leaves have taproot systems with one, or occasionally more, primary routes from which secondary roots develop.

Answer 6

Dicots

Question 7

Corn and rice, who seeds have one seed leaf, have a fibrous root systems

Answer 7

Monocotyledonous plants

Question 8

Composed of thimble shaped mass of parenchyma cells covering the tip of each route. Large and obvious and some plants while in others nearly invisible.

Protects from damage the delicate tissues behind it as the younger root tip pushes through often angular and abrasive style particles.

Answer 8

Root cap

Question 9

Plastids containing starch grains

Answer 9

Amyloplasts

Question 10

Cells in the blank which is composed of an apical meristem in the center of the root tip, produce the surrounding root cap

Answer 10

Region of cell division

Question 11

Gives rise to an outer layer of cells, the epidermis

Answer 11

Protoderm

Question 12

To the inside of the Protoderm produces Parenchyma of the cortex

Answer 12

Ground meristem

Question 13

Appears as a solid cylinder in the center of the route produces primary xylem and primary Phloem

Answer 13

Procambium

Question 14

Tissue that originates from the ground meristem, is generally present in stems but is also absent in most dicot roots.

Answer 14

Pith

Question 15

Most of the cells mature, or differentiate, into the various distinctive cell types of the primary tissues in this region, which is sometimes called the

Answer 15

Region of differentiation or root hair zone

Question 16

Absorb water and minerals, if you hear tightly to soil particles with the aid of microscopic fibers they produce and greatly increase the total absorptive surface of the root

Answer 16

Root hairs

Question 17

The cells of this tissue composed of Parenchyma cells lying between the epidermis and inner tissues, mostly store food.

Answer 17

Cortex

Question 18

Consists of single layered cylinder of compactly arranged cells whose walls are impregnated with lignin and suberin

Answer 18

Endodermis

Question 19

Bands that can be found on the radical and transverse cell walls

Perpendicular to the roots surface

Answer 19

Casparian strips

Question 20

A core of tissues that lies to the inside of the endodermis.

Answer 20

Vascular cylinder

Question 21

A second cambium. Normally arises in the pericycle outside of the vascular cambium and gives rise to court tissue

Answer 21

Cork cambium

Question 22

Growth that stops after an organ such as a flower or leave is fully expanded or after a plant has reached a certain size

Answer 22

Determinate growth

Question 23

Occurs in trees and other perennials where new tissues are added indefinitely, season after season

Answer 23

Indeterminate growth

Question 24

Many plants produce buds appearing in places other than stems along the routes that grow near the surface of the ground

Answer 24

Adventitious buds

Question 25

Special spongy roots, which extend above the water surface and enhance gas exchange between the atmosphere and the surface routes to which they are connected.

Answer 25

Pneumatophores

Question 26

Dependent on chlorophyll bearing plants for their nutrition, they parasitize their host plants via peg like projections which do you Valeport along the stem in contact with the host

Answer 26

Haustoria

Question 27

Organisms that lack chlorophyll and obtain nutrients from organic matter

Answer 27

Saprophyte

Question 28

They grow on other plants and obtain moisture and nutrients from the air and rain.

Answer 28

Epiphytes

Question 29

Popcorn like nodules contain bacteria that converts nitrogen from the air into forms that can be used by the plant

Answer 29

Root nodules

Question 30

A suspension of particles that are larger than molecules but that do not settle out of a fluid medium

Answer 30

Colloid

Question 31

The use of plants to facilitate the removal of toxic compounds from ground water and soil

Answer 31

Phytoremediation

Question 32

Metal binding polypeptides that sequester and detoxify heavy metals in plant tissue

Answer 32

Phytochelatins

Question 33

The arrangement of the soil particles into groups called aggregates

Answer 33

Soil structure

Question 34

Physically bound to the soil particles and is unavailable to plants

Answer 34

Hygroscopic water

Question 35

Dreams out of the pore spaces after a rain. If drainage is poor it is this water that interferes with normal plant growth.

Answer 35

Gravitational water

Question 36

Plants are mainly dependent on this type which is water held against the force of gravity, in pores of the soil.

Answer 36

Capillary water

Question 37

The water remaining after rain or irrigation when water in the soil drains away by gravity is referred to as this

Answer 37

Field capacity of the soil