Characteristics of Living Things
Define Unicellular and Multicellular Organisms
Unicellular- one cells carries out the functions of necessary to stay alive.
Multicellular- trillions of cells work together to carry out the functions of an organism.
Living or nonliving?
Living
Living or nonliving?
Nonliving
Bacteria or virus
Bacteria
Bacteria or Virus
Bacteria
What must all cells have?
DNA
What shape?
round, bricks, bullet, robot-like, threads
What shape?
spiral, rod
Outbreak source and cause
Water pump on Broad Street. Bacteria from a household sewer leaked into the waterway.
Cause
Bacteria: Salmonella Typhi
Contaminated uncooked food/water
Poor hygiene
What two things can living organisms get energy from?
Sunlight and consuming other living organisms
Reproduction
Binary Fission (asexual reproduction)
A cell copies its DNA and splits itself into two identical cells
Reproduction
Virus attaches to a host cell, injects the host cell with genetic material from the virus. The virus takes control of the host cells and forces it to copy its genetic material(DNA). The host cell will burst and spread the virus to the cells around it.
Butcher's name and his crime
Gideon Slye, sold spoiled meat
How many people got Typhoid Fever because of Mary Mallon? How many died?
47
3
Define Binary Fission
One cell copies its DNA and splits into two identical cells.
Disease
Medicine
Choloera, Strep throat, E.coli, Typhoid Fever
Antibiotics
Disease
Medicine
Cold, flu, covid
Vaccine
Investigators name
John Snow
What was Mary's job at the Island?
Lab technician
Name the 6 Characteristics of living things
1. Cellular Organization
2. The Chemicals of Life
3. Growth and Development
4. Response to Surroundings
5. Reproduction
6. Energy Use
Silimarity with virus
microorganism
Similarity with bacteria
contains genetic material
Who was Matilda Wright's great nephew and why was he important?
Thomas Sutterfield: He was a lawyer. He had a case against the Butcher for selling spoiled meat.
What is George Soper's job title?
Civil Engineer