Unit 10

Question 1

The euglena depends on what to function properly?

Answer 1

The normal function of a single cell

Question 2

Division Labour

Answer 2

When cells are specialized for one particular function, they can perform it more effectively and efficentl

Question 3

Size

Answer 3

The surface area to volume ratio and the related rate of different restricts the sizeof a unicelluar organism.

Question 4

What do transport systems permit?

Answer 4

The organism has to grow into a larger size

Question 5

Independence of Cells

Answer 5

The life of a multicelluar organism does not depend on a single cell.

Question 6

What happen when a cell functions abnormally?

Answer 6

The whole organism dies

Question 7

What are plants ?

Answer 7

Plants are multicelluar organisms

Question 8

What do multicelluar organisms do?

Answer 8

They peform each important function

Question 9

Tissues

Answer 9

Group of similar cells that perform a specific function

Question 10

Organ

Answer 10

Group of tissues that work together that perform a specific function

Question 11

System

Answer 11

A set of organs or parts that perform one or more functions as a unit

Question 12

Shoot System

Answer 12

The plant organ system that includes all tissues located above ground

Question 13

Root System

Answer 13

The plant organ system that includes all tissue located below the ground

Question 14

Why do cells divide?

Answer 14

For the growth of new tissue and repair of damaged tissue

Question 15

Mitosis

Answer 15

The process of cell division that allows growth and repair

Question 16

One cell divides into…

Answer 16

two cells

Question 17

Cell division does not occur at…

Answer 17

the same rate throughout the organism

Question 18

Meristems

Answer 18

Growth region of the plant with tissue in which cells divide by mitosis

Question 19

Different meristems produce…

Answer 19

Root tissue and shoot tissue

Question 20

The root and shoot systems are made up of…

Answer 20

Tissues specialized for different activities

Question 21

Dermal tissue or epidermis

Answer 21

The outermost cell layer of plants;

Question 22

One cell layer and is responsible for…

Answer 22

The exchange of matter and gases into and out of the plant

Question 23

In woody plants, the epidermis is replaced by…

Answer 23

Cork and bark during the secondary growth stage of the development

Question 24

The dermal tissue of the shoot system organs, the leaves and stem…

Answer 24

Is primarily involved in gas exchange of carbon dioxide and oxygen

Question 25

The dermal tissue also protects the plant from

Answer 25

disease

Question 26

Cuticle

Answer 26

Waxy, non-celluar, waterproof coating that covers a plant’s leaves and stems

Question 27

Dermal tissue of the root system is responsible for

Answer 27

The uptake of water and mineral salts

Question 28

Ground tissue

Answer 28

Parts of the plant body not included in the dermal or vascular tissue systems

Question 29

Ground tissue in the stem provides…

Answer 29

Strength and support to the plant

Question 30

Ground tissue in the roots involves

Answer 30

Food and waste storage

Question 31

Ground tissue in the leaves involves the location..

Answer 31

Where photosynthesis occurs

Question 32

The cells of the ground tissue are…

Answer 32

Loosely packed together and the air spaces between cells allow gases to diffuse rapidly through the ground tissue

Question 33

Vascular tissue

Answer 33

Responsible for the transport of materials throughout the plant

Question 34

Xylem tissue

Answer 34

Moves water and dissolved minerals from the roots up to the stem to the leaves where they substances are used in photosynthesis

Question 35

Xylem vessels are

Answer 35

Thick-walled tubes of varying diameters

Question 36

The contents of the cytoplasm…

Answer 36

Break down and the cells die

Question 37

Non-living ducts are responsible for the…

Answer 37

Movement of water and minerals up the stem

Question 38

Phloem tissue

Answer 38

Transports sucrose and other dissolved sugars from the leaves to other parts of the plant

Question 39

Sieve tube cells

Answer 39

Cylindrical cells lacking nuclei and with perforated sides and end walls that allow the movement of phloem sap between cells

Question 40

What happens when sieve tube cells remain alive?

Answer 40

They use lose their nuclei

Question 41

Companion cells

Answer 41

Type of small phloem cells adajecent to sieve tube cells that appear to control sugar transport in the phloem

Question 42

Companion cells are used to provide…

Answer 42

Energy for celluar processes or converted into cellulose

Question 43

Cellulose forms…

Answer 43

Fibrous structures for strength and support

Question 44

Cells become specialized because…

Answer 44

They need to perform a particular function and produce only the products needed for that function

Question 45

Cells that become part of the root system and are responsible for…

Answer 45

The absorption of water and minerals from the soil, produce tiny hair like projections called root hairs.

Question 46

Root hairs

Answer 46

Extension of a specialized dermal cell on a plant root, which absorbs water and minerals

Question 47

Dermal cells of the shoot system produce…

Answer 47

Cuticle to protect the plants cells from water loss

Question 48

The lower epidermal surface of leaves develops…

Answer 48

Specific cells called guard cells that form tiny pores called stomata for gas exchange

Question 49

The guard cells are the only cells in the epidermis that contain…

Answer 49

Chloroplasts

Question 50

The upper epidermis usually has fewer stomata than the…

Answer 50

Lower epidermis

Question 51

Cells that become part of the xylem in the vascular tissue specialize to be able to…

Answer 51

Conduct water and to allow the transport of water to adjecent cells. These cells die during differentation of the xylem