cell specialisation

Question 1

what is a specialised cell:

Answer 1

a cell with a specific adaptation to perform a particular function

Question 2

specialised animal cells:

Answer 2

red and white blood cells-carries 02 and defeats viruses
nerve and sperm cells and egg cell, ciliate and villi cells

Question 3

specialised plant cells:

Answer 3

xylem and phloem cells, root hair cells and leaf cells

Question 4

sperm cell:

Answer 4

has a long tail and swims to the egg cell

Question 5

muscle cells:

Answer 5

have lots of mitochondria to help carry out cellular respiration.

Question 6

tissue

Answer 6

bunch of similar cells

Question 7

plant tansport:

Answer 7

unicellular organisms
use diffusion to get oxygen
larger eg trees uses a large network of veins to run through roots
2 main vascular tissues used for transportation:
xylem and phloem

Question 8

xylem:

Answer 8

transports water and dissolved minerals
one way flow of sap/system
no end walls
made of dead cells
clear and hollow tube
thick cell wall-lignin-strong and gives support

Question 9

phloem:

Answer 9

sugar and amino acids- for growth travels to leaves and sugar takem to roots stored as starch
thin cell wall made of cellulose
2 way flow of sap/system
end wall and preferations-holes
made of living cells