Specialised tissue

Question 1

What is epithelial tissue used for?

Answer 1

It is used as lining

Question 2

How is epithelium tissue adapted for its function?

Answer 2

No blood vessels, diffuses all its nutrients from the connective tissue fluid
Short cell cycle, renewed 2/3 times daily to renew damages cells

Question 3

Where is epithelial tissue used?

Answer 3

Free surfaces like:
Skin
Gut
Airways
Blood vessels

Question 4

What is cartilage used for?

Answer 4

The extracellular matrix provides strength for the cell

Question 5

Where is cartilage used?

Answer 5

Skeleton
Larynx
Nose
Ear

Question 6

What is hyaline cartilage?

Answer 6

Makes the embryonic skeleton
Covers the end of long bones in adults
Joins ribs to the sternum

Question 7

What is fibrous cartilage?

Answer 7

Occurs in discs between the spines vertebrae and knee joints

Question 8

What is elastic cartilage?

Answer 8

Makes up the outer ear and epiglottis

Question 9

What is muscle tissue used for?

Answer 9

Movement

Question 10

Where is smooth muscle tissue used?

Answer 10

Walls of intestine, uterus and trachea

Question 11

How is muscle tissue adapted for its function?

Answer 11

Special type of protein filaments to allow for contraction
Strong cytoskeleton for movement
Long and fibrous

Question 12

What is skeletal muscle?

Answer 12

Causes the bone to move when it contracts

Question 13

What is smooth muscle used for?

Answer 13

Controls movement of internal organs

Question 14

What is epidermal tissue used for?

Answer 14

Protective cover

Question 15

Where is epidermal tissue used?

Answer 15

Over leaves, stems and roots

Question 16

How is epidermal tissue adapted for its function?

Answer 16

Is flattened cells
No chloroplast
Some are impregnated with a waxy cuticle, reducing water loss in dry places

Question 17

What are xylem tissue used for?

Answer 17

Carry water and minerals to the plants from the roots

Question 18

What are phloem tissue used for?

Answer 18

Transport compounds for photosynthesis around the plant

Question 19

How is xylem tissue adapted for its function?

Answer 19

Lignin is deposited in their cells to reinforce and waterproof them but they die in the process
The end of the cell breaks down so they form continuous columns and a wide lumen
Cell wall is thicker

Question 20

How is phloem tissue adapted for its function?

Answer 20

Sieve tubes lose most of their organelles and a sieve plate forms between them
Companion cells retain their organelles and provide ATP for active loading of sugars into sieve tubes

Question 21

What are meristematic tissue used for?

Answer 21

Region responsible for growth and replication of plant cells

Question 22

How is meristematic tissue adapted for its function?

Answer 22

Thin walls with very little cellulose
No chloroplast or vacuole
Can divide by mitosis and differentiate into other types of cells