The Nature and Variety of Living Organisms 🧫🔬
(a) Characteristics of living organisms
M.R.S.G.R.E.N
1. Movement
2. Respiration
3. Sensitive
4. Growth
5. Reproduction
6. Excretion
7. Nutrition
(b) Variety of living organisms
All living organisms can be classified into 5 different kingdoms. Which are
1. Animals
2. Plants
3. Fungi
4. Protoctists
5. Prokaryotes
Eukaryotic cells
1. Contains a nucleus
2. Can be multi or single celled
Animal cells
1. Nucleus
2. Ribosomes
3. Cell membrane
4. Cytoplasm
5. Mitochondria
Plants cells
1. Nucleus
2. Ribosomes
3. Cell membrane
4. Cell wall
5. Chloroplast
6. Cytoplasm
7. Mitochondria
8. A permanent vacuole
, Fungal cells
1. Cytoplasm
2. Nucleus
3. Cell wall (made out of chitin)
4. Mitochondria
5. Ribosomes
6. Cell membrane
Prokaryotic cells
1. No nucleus
2. Singular celled
3. Smaller than eukaryotic cells
Bacteria cells
1. Cell wall
2. Cell membrane
3. Plasmids
4. Cytoplasm
5. Circular chromosomes of DNA
Pathogens
Any microorganism that causes disease in another organism. Such as bacteria, viruses,
protoctists, fungi
Bacteria
M. tuberculosis causes tuberculosis in humans.
N meningitidis causes bacterial meningitis in humans.
Fungi
Athletes foot.
Cattle Ringworm.
Protoctists
Plasmodium falciparum causes malaria in humans.
P. infestans causes potato blight.
Viruses
Not a living organism!
Coronavirus
Influenza virus causes the flu
(a) Characteristics of living organisms
M.R.S.G.R.E.N
1. Movement
2. Respiration
3. Sensitive
4. Growth
5. Reproduction
6. Excretion
7. Nutrition
(b) Variety of living organisms
All living organisms can be classified into 5 different kingdoms. Which are
1. Animals
2. Plants
3. Fungi
4. Protoctists
5. Prokaryotes
Eukaryotic cells
1. Contains a nucleus
2. Can be multi or single celled
Animal cells
1. Nucleus
2. Ribosomes
3. Cell membrane
4. Cytoplasm
5. Mitochondria
Plants cells
1. Nucleus
2. Ribosomes
3. Cell membrane
4. Cell wall
5. Chloroplast
6. Cytoplasm
7. Mitochondria
8. A permanent vacuole
, Fungal cells
1. Cytoplasm
2. Nucleus
3. Cell wall (made out of chitin)
4. Mitochondria
5. Ribosomes
6. Cell membrane
Prokaryotic cells
1. No nucleus
2. Singular celled
3. Smaller than eukaryotic cells
Bacteria cells
1. Cell wall
2. Cell membrane
3. Plasmids
4. Cytoplasm
5. Circular chromosomes of DNA
Pathogens
Any microorganism that causes disease in another organism. Such as bacteria, viruses,
protoctists, fungi
Bacteria
M. tuberculosis causes tuberculosis in humans.
N meningitidis causes bacterial meningitis in humans.
Fungi
Athletes foot.
Cattle Ringworm.
Protoctists
Plasmodium falciparum causes malaria in humans.
P. infestans causes potato blight.
Viruses
Not a living organism!
Coronavirus
Influenza virus causes the flu
