Body covering and support in plants

Question 0

What does epidermes secrete in most stems and leaves?

Answer 0

cuticles

Question 1

What is the skin of the plant called?

Answer 1

the epidermis

Question 2

what do cuticles do?

Answer 2

prevent evaporation

Question 3

what is under the layer of the epidermis?

Answer 3

a spongy mesophyll

Question 4

what two names are plants split into?

Answer 4

herbaceous and woody

Question 5

what do woody plants have associated with them?

Answer 5

bark

Question 6

what else can you separate plants into?

Answer 6

annuals or perennials

Question 7

do annuals complete their life cycle?

Answer 7

yes and they tend to be herbaceous

Question 8

do perennial plants live long?

Answer 8

yes they live many years and then usually die of infection sever drought or fire.

Question 9

what are the four types of plant tissue?

Answer 9

epidermal, vascular ground and meristematic

Question 10

are perennial plants monocot or dicot?

Answer 10

dicot

Question 11

what does meristematic tissue allow the plant to do?

Answer 11

grow due to the division of cells

Question 12

what is the cell division called ?

Answer 12

mitosis

Question 13

what does mitosis do for the plant?

Answer 13

provides new cells

Question 14

what are the two locations for meristematic tissues?

Answer 14

shoot apical meristem (ones at the tip)

root apical meristem (ones at the tip of the roots)

Question 15

What is cork cambium?

Answer 15

later meristematic tissue in plants that produces cork cells that replaces epidermis during secondary growth.

Question 16

what do cork cells deposit?

Answer 16

suberin

Question 17

what makes up bark?

Answer 17

periderm plus phloem

Question 18

where is phloem located on the plant?

Answer 18

outside

Question 19

where is xylem located on the plant?

Answer 19

inside of woody trees

Question 20

what surrounds the xylem and what is that surrounded by?

Answer 20

vasuclar cambium surrounds xylem and that is surrounded by the phloem

Question 21

what can vascular cambium do to become xylem or phloem ?

Answer 21

separate

Question 22

what is cambium?

Answer 22

meristematic tissue that can divide

Question 23

what does cork cambium do?

Answer 23

give rise to cork cells that forms the bark or woody outside

Question 24

what is wood?

Answer 24

secondary xylem

Question 25

is vascular cambien a monocot or dicot?

Answer 25

dicot

Question 26

what can cambium do?

Answer 26

divide into cambium and differentiated cell

Question 27

what happens to the cells that go inside and the cells that go outside?

Answer 27

the cells that go inside are xylem and the cells that go outside are phloem

Question 28

What do tree rings mean?

Answer 28

lines= slowed growth
a large width between lines mean a rainy season
a small width means a drought

Question 29

what are rays?

Answer 29

ground tissue between vascular bundles for radial transport of water and nutrients and starch storage

Question 30

what is integument?

Answer 30

skin is the largest organ of the integumentary system

Question 31

how does skin protect the body ?

Answer 31

it makes fatty acids that keeps things out keeps moister in and hair that keeps things out and protects you from uv rays

Question 32

how many layers does skin have?

Answer 32

skin has three layers

Question 33

what are the three layers of skin?

Answer 33

epidermis the outermost layer, the dermis (under the epidermis) and the hypodermis under the dermis

Question 34

what is the hydrostatic skeleton?

Answer 34

fluid held under pressure in a closed body compartment

Question 35

in a earthworm what pushes against fluid in the coelom?

Answer 35

muscles

Question 36

what happens if longitudinal muscles contract?

Answer 36

body gets shorter and circular get wider

Question 37

what happens if longitudinal muscles extract?

Answer 37

body length gets longer and circular gets narrow

Question 38

what happens if circular muscles contract?

Answer 38

the width gets narrower and length gets longer

Question 39

what happens if circular muscles extract?

Answer 39

you get thicker and length gets shorter

Question 40

what is the exoskeleton?

Answer 40

a skeleton found on the outer portion of the body

Question 41

what are the skeletons made of in arthropods?

Answer 41

chitin

Question 42

what are the 3 layers to the exoskeleton of an arthropod?

Answer 42

epicuticle (outer waxy layer) procuticle (middle layer) hypodermis (secrets top two layer)

Question 43

what is the advantage to having a hard shell?

Answer 43

it protects the inside and light weight and is also flexible around the joints

Question 44

what is a disadvantage to having a hard shell?

Answer 44

they are vulnerable and have to mold in order to grow a new exoskeleton

Question 45

what are the shells of mollusks made of ?

Answer 45

calcium carbonate crystals that are embedded in protein, mollusks have a shell secreted by epidermal layer called a mantle

Question 46

what has exoskeletons?

Answer 46

mammals, reptiles amphibians, aves,

Question 47

what is cartilage?

Answer 47

a matrix gel like glycoprotein

Question 48

what is chondro from and cytes from

Answer 48

chondro is from cartilage and cytes from cells

Question 49

are bones inflexible and holllow?

Answer 49

yes

Question 50

what are bones filled with?

Answer 50

bone marrow

Question 51

what are the two types of bone marrow?

Answer 51

yellow (center of long bones, stores nutrients) red (make new cells pelvis and sternum are filled with red)

Question 52

what is an endoskeleton?

Answer 52

bones are held together by ligaments muscles are attached to bones by tendons and muscles move bones muscle contractions move bones