Comparisons

Question 1

What is a prokaryote?

Answer 1

-single celled organism
-no membrane bound organelles
-bacteria

Question 2

What is a eukaryote?

Answer 2

-have membrane around organelles
-animal + plants

Question 3

Nucleus

Answer 3

P - not present - single circular DNA
U - present

Question 4

DNA

Answer 4

P - circular
U - linear

Question 5

DNA organisation

Answer 5

P - proteins fold + condense DNA
E - associated with histones

Question 6

Extra-chromosomal DNA

Answer 6

P - circular DNA = plasmids
E - only present in certain organelles eg. Chloroplasts + mitochondria

Question 7

Organelles

Answer 7

P - non membrane bound
E - both non bound + bound

Question 8

Cell wall

Answer 8

P - peptidoglycan
E - chitin in fungi, cellulose in plants, not present in animals

Question 9

Ribosomes

Answer 9

P - smaller = 70s
E - larger = 80s

Question 10

Cytoskeleton

Answer 10

P - present
E - present - more complex

Question 11

Reproduction

Answer 11

P - binary fission
E - asexual or sexual

Question 12

Cell type

Answer 12

P - unicellular
E - unicellular and multicellular

Question 13

Cell surface membrane

Answer 13

P - present
E - present

Question 14

What are the key differences with prokaryotes?

Answer 14

-much smaller
-no membrane bound organelles
-smaller ribosomes
-DNA not contained in nucleus