3.1 Tissues and organs

Question 1

how do specialised cells become organised into tissues

Answer 1

during the development of mulitcellular organisms, cells differentiate becoming specialised to carry out particularjobs. similar cells are grouped together to form a tissue

Question 2

how do several different tissues work together to form an organ

Answer 2

organs are collections of tissues
-each organ contains several tissues all working together to perform a specific function

Question 3

define the word tissue

Answer 3

a group of cells with similar structure and function working together

Question 4

define the word organ

Answer 4

collections of tissues

Question 5

is a sperm a specialised cell, tissue or organ?

Answer 5

SPECIALISED CELL

Question 6

is a kidney a specialised cell, tissue or organ?

Answer 6

organ

Question 7

is a stomach a specialised cell, tissue or organ?

Answer 7

organ

Question 8

how is the stomach adapted for its role in the digestion of food

Answer 8

-features to increase surface area
- a rich supply of of blood to areas where blood takes place
-areas with short diffusion distances for exchange
-mechanisms to increase concentration gradients by ventilating surfaces