Cell and Cell transport

Question 1

what is a prokaryote

Answer 1

bacteria is a prokaryote and they are very small single celled organisms that do not contain a nucleus and no membrane bound organelles in the cytoplasm

Question 2

what are the 5 things that a typical prokaryote will ALWAYS contain?

Answer 2

1) a cell wall made of murein (glycoprotein)

2) a cell surface membrane

3) a circular dna molecule that is free in the cytoplasm and not associated with proteins

4) ribosomes (70s)

5) cytoplasm

Question 3

what are the 3 things that a prokaryotic cell MAY contain

Answer 3

1) a capsule surrounding the cell wall

2) one or more plasmid

3) one or more flagella

Question 4

how are eukaryotic organisms characterised

Answer 4

by having a nucleus and membrane bound organelles in the cytoplasm

Question 5

rate of diffusion is proportional to

Answer 5

sa x conc gradient / diffusion distance