Characteristics of living organisms

Question 1

What are the characteristics of living organisms

Answer 1

Movement
Respiration
Sensitivity
Control
Growth
Reproduction
Excretion
Nutrition

Question 2

What are the types of organisms

Answer 2

Animals
Plants
Fungi
Protoctists
Prokaryotic organisms (e.g. bacteria)

Question 3

What is the cell wall of fungi made of

Answer 3

Chitin

Question 4

Explain the structure of a multicellular fungi organism

Answer 4

Made up of thread-like structures called hyphae which contain a lot of nuclei. The network of hyphae is called mycelium

Question 5

How do fungi digest food

Answer 5

Extracellular digestion. They release digestive enzymes outside the mycelium and absorb the digested molecules

Question 6

What are prokaryotic organisms

Answer 6

• Single-celled
• Do not have a nucleus
• Contain nucleic material in cytoplasm

Question 7

Explain the structure of a bacterial cell

Answer 7

• Prokaryotic
• No nucleus but contain circular chromosomes of DNA
• Contain plasmids - small, circular loops of DNA containing genes
• They have a cell wall (not cellulose)

Question 8

What is a pathogen

Answer 8

A microorganism which causes diseases in another organism

Question 9

What are the types of pathogens

Answer 9

Bacteria
Viruses
Fungi
Protoctists

Question 10

What is the structure of a virus cell

Answer 10

Envelope on the outside
Protein coat surrounding DNA or RNA