(2) The variety of living organisms Flashcards
What is photosynthesis?
It is a process that uses light energy to convert water and carbon dioxide into glucose.
Fungi can be multicellular as well as…
Unicellular
What are hyphae?
Fine thread like filaments.
What is saprotrophic nutrition?
It is where an organism feeds on dead organic materials and the digestion takes place outside the organism.
What are protoctists?
Protoctists are organisms that don’t belong to the plant, animals or fungi kingdoms.
What are eukaryotic cells?
They are cells that have a nucleus.
What are prokaryotic cells?
They are cells that don’t have a nuleus.
What are bacteria?
They are single-celled organisms.
What are the three basic shapes of bacteria?
Spheres, rods and spirals
How is the genetic material of a bacteria stored in it?
It is a single loop of DNA floating in the cytoplasm.
What are viruses?
They are parasites that can only reproduce inside living cells. They are not made of cells, they are just particle and they have no nucleus or cytoplasm.
How do viruses reproduce?
By entering the host cell and taking over its genetic machinery to make more virus particles.
