Classification system and concepts of living things
What is abiotic and biotic?
Abiotic: not alive
Biotic: alive
How can we prevent virus?
With vaccines
It needs to have a host cell lo live at its expense.
The basic unit of life.
Cells
How can we battle bacterias?
Antibiotics
What is the broadest level of classification in taxonomy? (Biggest)
Domain
A cell with define nucleus and more complex organelles.
Eukaryotic cell
What are the three main types of parasites?
1. Helminths.
2. Protozoa.
3. Ectoparasites.
What is a NEED for organisms to live?
Homeostasis
Food
Shelter
Water
Describe some of the structures that bactearias has
Flagella for movement
Pili for reproduction
Capsule
DNA
Ribosomes
Cell wall and membrane
What is an autotroph?
Organism that can create their own food
Why are virus not alive (mention at least 2)
1. They dont have cells
2. Have proteins coat.
3. No stimuli and response.
4. They dont reproduce (multiply by host cell).
5. No DNA
Microcoscopic unicellular microorganism.
Protozoa
What does an unicellular organism means?
Composed of one cell and it does all the functions.
How to bacterias obtain food?
What is heterotroph?
An organism that hunts or looks for their own food
Name two types of shapes of virus.
Complex, helical, polyhedral and spherical
Multicellular organisms that infects and live at the expense of their host, multiply in a microscopic level. It leaves eggs.
Helminths
What characteristic is responsable that we react to something hot? (Like putting your hand on the stove)
Stimuli and response
Explain what binary fission is.
Asexual reproduction of the bacteria. From one cell it duplicates and creates two identical cells.
What part of taxonomy classification does scientists use to name organisms.
Genus and specie
Explain how a virus infects more cells and spreads its disease.
1. The virus attach to a host cell.
2. They degrade their DNA into the host cell.
3. The host cell replicated the virus inside.
4. They multiply and assemble inside the host cell.
5. The host cell explodes and the virus attack other cells.
What is the rute of infection of protozoas.
Fecal-oral
Name atleast 3 of the 7 characteristics.
They are made up of cells
They contain similar chemical
They use energy
Respond to their surroundings
All organisms grow
All organisms develop
All organisms reproduce
What mechanisms does a bacteria do to survive on harsh enviroments?
They create a thick wall around their genetic material and cytoplasm called endospore.