Tree of Life
What is the purpose of the Tree of Life model?
To show how all species are related.
What are microbes?
Tiny organisms that can be bacteria, fungi, protists, etc.
What structure in bacteria helps them move?
Flagella.
What material makes up the cell walls of fungi?
Chitin.
Name one type of protist.
Algae, protozoa, or slime moulds.
Name one characteristic that helps scientists classify organisms.
Physical characteristics (e.g., cell structure, body type).
Name one place where microbes can be found.
Almost everywhere, including soil, water, air, and on living organisms.
Name one shape bacteria can have.
Spherical, rod-shaped, or spiral.
What is mycelium?
A network of hyphae that absorbs nutrients.
What do animal-like protists eat?
Bacteria or other small organisms.
True or False: The Tree of Life includes only animals and plants.
False, it includes all types of organisms.
True or False: All microbes are harmful to humans.
False, some are helpful to humans and the environment.
What is the role of bacteria in decomposition?
They break down dead organic material.
Name one way fungi contribute to the ecosystem.
They decompose dead matter and recycle nutrients.
How do plant-like protists benefit aquatic ecosystems?
They produce oxygen through photosynthesis.
Why is classification important in science?
It helps scientists organise and study relationships between species.
List two types of microbes.
Bacteria, fungi, protists, viruses.
What are two ways bacteria help human health?
Aid in digestion and produce vitamins in the human gut.
What is a symbiotic relationship? Give one example involving fungi.
A close relationship where both organisms benefit, e.g., mycorrhizal fungi and plant roots.
Describe one way that protozoa move.
Cilia, flagella, or pseudopods.
Describe one way organisms are grouped on the Tree of Life.
By shared characteristics or genetic similarities.
How do microbes impact the environment?
They recycle nutrients, decompose organic matter, and support ecosystems.
Name one example of a harmful bacteria.
Streptococcus (causes strep throat), Salmonella (causes food poisoning).
How do fungi reproduce? Name the reproductive cells.
By releasing spores.
Why is algae important for aquatic life?
Algae form the base of the food chain and produce oxygen.