variety of organisms Flashcards
what are the three types of cells and describe what each of them are
Eukaryotes-complex cells such as plant, animal,fungi and protoctists. Eukaryotic cells have organelles contained in a plasmic membrane
Prokaryotes-simple cells such as bacteria. These have no nucleus or membrane bound cells.
Pathogens-disease causing micro-organisms such as fungi, bacteria,protoctiscs and viruses. These can either be prokaryotes or eukaryotes
what is the function of the cell membrane
the cell membrane controls what goes in and what goes out of the cell
explain the structure of a bacteria
a bacteria is a single celled and has no nucleus. However, it does have a cell membrane,cytoplasm,cell wall and a loop of DNA
give an example of a bacteria and explain what it can do
LACTOBACCILUS BULGARIUS-Long,rod shape and can help to make yogurt.
are plant and animal cells multicellular or single celled?
multicellular!
what is the function of the nucleus
the nucleaus contains genetic material and controls the cells activities
give the name of a virus and what disease it causes
HIV-AIDS
INFLUENZA-COLD
What are fungi’s walls made of out and what is the structure of a fungi
chitin
Fungi are single celled and their body’s are called a mycelium which are made up of hyphae which contain many nuclei
name 2 differences between a plant cell and an animal cell
plant cells have chloroplasts but animals cells don’t
animal cells do not have cell walls, plant cells do
how to bacterium feed?
off other organisms, living or dead
what is the structure of a protoctist
protoctists can vary in structure-some can be more like plant cells other can be more like animal cells
what is the function of the cell wall
the cell wall supports the cell as a whole
what is the function of the mitochondria
the mitochondria is where aerobic respiration takes place
give a disease caused by bacteria
salmonella
why are viruses not called a living organisms
because they excrete
because they cannot respire
