Plant And Animal Tissues

Question 1

What are tissues?

Answer 1

A group of similar cells performing a specific function.

Question 2

What are the 2 types of plant tissues?

Answer 2

Meristematic and Permanent

Question 3

Where are lateral and apical meristematic tissues found?

Answer 3

lateral: below bark for growth in dia of stem.
apical: at tips of roots and stem and young leaves near stem tips and tips of axillary buds.

Question 4

what are characteristics of meristematic tissue?

Answer 4

thin cell wall, small and cubical, large nucleus, no vacuole, no cell space, actively dividing.

Question 5

What are the characteristics of permanent tissue?

Answer 5

cells do not divide, take a permanent shape for a function.

Question 6

What are the characteristics of permanent protective tissue?

Answer 6

thick cell wall, on surface of roots stems and leaves

Question 7

What are examples of protective permanent tissue?

Answer 7

epidermis of leaf, cork cells of bark

Question 8

What are the 3 types of supportive tissue?

Answer 8

Parenchyma, Sclerenchyma, Collenchyma

Question 9

What are the characteristics of collenchyma?

Answer 9

cell wall thickens at corners, cells are elongated

Question 10

what is the location and function of collenchyma?

Answer 10

in leaf stalks, below leaf epidermis
supports parts of plant.

Question 11

What are the characteristics of Sclerenchyma?

Answer 11

very thick cell wall due to deposited lignin
long, narrow, dead cells

Question 12

what is the location and function of Sclerenchyma?

Answer 12

in stems and veins of leaves
providing strength

Question 13

What are the characteristics of Parenchyma?

Answer 13

large, thin walled, cells
oval circular or polygonal in shape, large vacuole present

Question 14

What is the location and function of Parenchyma?

Answer 14

it stores food and provides temporary support to plant.
it is found in soft parts of the plant.

Question 15

What are the 2 types of supportive tissues?

Answer 15

Xylem, Phloem

Question 16

What are the characteristics of Xylem?

Answer 16

thick walled tubular cells

Question 17

what is the function of xylem?

Answer 17

upward movement of water and minerals
old xylem forms food

Question 18

what are the characteristics and function of xylem trachieds?

Answer 18

elongated dead cells having large cavities, cells form long tube, highly lignified cell wall
provide mechanical support

Question 19

what are the characteristics and functions of xylem vessels?

Answer 19

cell walls dissolve to form long pipe
hard, thick cell wall
transport water and minerals

Question 20

what are the characteristics and functions of xylem parenchyma?

Answer 20

living cells
store food, conduct water and minerals

Question 21

what are the characteristics and functions of xylem fibres?

Answer 21

dead, thick walled, narrow, tapering cells
provide mechanical support

Question 22

what are the characteristics of phloem?

Answer 22

upward and downward movement of prepared food from leaves

Question 23

what are the characteristics and functions of phloem sieve tubes?

Answer 23

elongated cells placed end to end forming long tube
sieve tubes(transverse walls) perforated
help in transport of food from leaves to storage organs and other parts

Question 24

what are the characteristics and functions of phloem companion cells?

Answer 24

living parenchyma cells closely associated with sieve tubes
help in functioning of sieve tube cells

Question 25

what are the characteristics and functions of phloem parenchyma?

Answer 25

stores starch, fat

Question 26

what are the characteristics and functions of phloem fibres?

Answer 26

provide support

Question 27

What are vascular bundles?

Answer 27

Xylem and Phloem form the vascular bundles they are in leaf veins

Question 28

What are complex tissues?

Answer 28

tissues made of more than one type of cells such as xylem and phloem.

Question 29

What are the 4 types of animal tissues?

Answer 29

Epithelial, muscle, connective, nervous

Question 30

What is the location of epithelial tissue?

Answer 30

covering surface of body, lining body cavities and organs in mouth, nose, stomach

Question 31

What is the function of epithelial tissues?

Answer 31

protection, absorption, secretion, sensory

Question 32

What are the 4 types of epithelial tissue?

Answer 32

squamous, stratified, cuboidal, columnar

Question 33

What are the characteristics of squamous epithelium?

Answer 33

cells are thin, flat, with prominent nuclei closely packed

Question 34

What is the location and function of squamous epithelium?

Answer 34

lining mouth and nasal cavities, blood and lymph vessels protects underlying parts from mechanical injury, germs, harmful chemicals and drying up

Question 35

What is the location of cuboidal epithelium?

Answer 35

in some parts of kidney tubules, in glandular ducts such as salivary and pancreatic

Question 36

What are the characteristics and location of columnar epithelium?

Answer 36

cells are vertically arranged, cylindrical, tall found in inner lining of stomach and intestines

Question 37

What are the 2 types of columnar epithelium?

Answer 37

ciliated, glandular

Question 38

What are the characteristics and location of ciliated columnar epithelium?

Answer 38

have thread like protoplasmic extensions called cilia which keep lashing and move materials in these regions in lining of trachea

Question 39

What are the characteristics and location of glandular columnar epithelium?

Answer 39

contains large secreting cells, at certain places it is folded inward to form compact hollow glands in lining of stomach and intestine, and folded in sweat, tear glands and liver

Question 40

What are the characteristics and location of stratified epithelium?

Answer 40

composed of several layers of kinds of epithelial cells found in skin and cornea

Question 41

What are the characteristics of nervous tissue?

Answer 41

present in nervous system, made of long neurons, nerve cell contains cyton containing nucleus and dendrons, axons are very long

Question 42

What is the function of nervous tissue?

Answer 42

perception and response

Question 43

What are the functions of muscular tissue?

Answer 43

helps in movement by contraction and relaxation

Question 44

What are the 3 types of muscular tissue?

Answer 44

Striated, unstriated, cardiac

Question 45

What are the characteristics of striated tissue?

Answer 45

voluntary, made of long striated fibres, light and dark band run across, 50 percent of body weight present in arms, legs, face, neck

Question 46

What are the characteristics of unstriated muscles?

Answer 46

involuntary, long, slender, tapering cells present i. walk of intestine, skin, bladder, uterus, lining if blood vessels

Question 47

What are characteristics of cardiac muscle?

Answer 47

involuntary, present in wall of heart, is striated, has short breached fibres, is very durable