Organisms And Life Processes Flashcards
Plants are…organisms
Multicellular
What are plant cell walls made of?
Cellulose
How do animals get their energy?
They eat other organisms
What carbohydrate is stored in animal cells?
Glycogen
What are vertebrates?
Animals that have a backbone
What are invertebrates?
Animals that do not have a backbone
Fungi…other organisms
Feed off
Fungi are…
Saprophytes or parasites
Some fungi are…others are…
Multicellular…unicellular
What are multicellular fungi made of?
Mycelium
What is mycelium?
A tangled network of hyphae
What is saprophytic nutrition?
Where fungi secrete enzymes which digest their food outside the cells. They then absorb the digested product.
How do protoctists get their food?
Photosynthesis or by feeding off other organisms
Most protoctists are…
Unicellular
Some protoctists are…
Multicellular
Give two examples of protoctists
Algae and protozoa
Bacteria are tiny…organisms
Single celled
What are the three common bacteria shapes?
Spheres, rods and spirals
What is the wall of bacteria made of?
Polysaccharides and proteins
Bacteria dont have a…
Nucleus
Where is the genetic material in bacteria?
In a circular loop in the cytoplasm
What are plasmids?
Small extra circles of DNA
Some bacteria contain…and so can…
Chlorophyll…photosynthesise
Most bacteria…
Feed on dead or other living organisms
Prokaryotes are…
Single-celled organisms that do not have a nucleus
Viruses are…
Parasites
Viruses have…
A core of genetic material surrounded by a protein coat
Examples of viruses are…
Flu, HIV and AIDS
