Eukaryotes and prokaryotes

Question 1

prokaryotes have no nucleus or internal membranes so have no

Answer 1

membrane bound organelles

Question 2

prokaryotes are

Answer 2

unicellular and acellular

Question 3

eukaryote

Answer 3

organism containing cells with membrane bound organelles with DNA in the nucleus

Question 4

site of aerobic respiration in prokaryotes

Answer 4

plasma membrane

Question 5

prokaryote size vs eukaryotes

Answer 5

pro- 1-10 micrometers
eu- 10-100 micrometers

Question 6

prokaryote ribosomes vs eukaryotes

Answer 6

pro- 70s free in cytoplasm
eu- 80s free or attached to er

Question 7

mesosomes and function

Answer 7

infoldings of the plasma membrane that increase the sa, used for respiration

Question 8

capsule prokaryotic

Answer 8

protective outer layer against phagocytosis

Question 9

plasmids prokaryotic

Answer 9

small circular DNA with genes for antibiotic resistance

Question 10

viruses are…

Answer 10

non living and acellular
very small
use a host cell to reproduce
use DNA/RNA for replication

Question 11

viruses are obligate parasites, this is because

Answer 11

they dont have the metabolic capabilities to create their own energy or dna so have to use a host

Question 12

virus structure

Answer 12

core of nucleic acid surrounded by a protein coat and SOME have an outer lipoprotein envelope, e.g., HIV

Question 13

virus diseases in humans, plants, birds and others

Answer 13

human: flu, chickenpox, cold, ebola
plants: cauliflower mosaic virus
birds: bird flu
others: cowpox, swine flu

Question 14

comparisons between eukaryotes, prokaryotes and viruses can be seen on

Answer 14

electron micrograph images

Question 15

cell theory: 3 points

Answer 15

all living organisms are multicellular
cell is the basic unit of life(structure, organisation and function)
cells can only arise from pre-existing cells

Question 16

differentiation

Answer 16

development of a cell into a specific type