Vocabulary
a mixture containing material from one or more deactivated pathogens
A vaccine
Name the two ways in which bacteria reproduces
What are 3 shapes that a virus can come in?
Crystal, cylinder, sphere, and bacteriophage.
Write 0.77777... as a fraction
7/9
Approximate the square root(27) to the nearest whole number.
5
Special proteins that can attach to a pathogen and make it useless
Antibody
What are three ways that bacteria can be beneficial?
Help with digestion, produce vitamins, prevent harmful bacteria from growing, decomposition, nitrogen fixation, bioremediation, etc
What is a virus composed of?
RNA or DNA and a protein coat
Is 0.234234234234... a rational number?
Yes, the numbers repeat in a pattern so it is a repeating decimal.
Which number(s) are irrational:
0.671671671..., square root(81), 4.56743123..., 0.62, -4, 0, square root(8)
4.56743123..., square root(8)
agents, such as bacteria, that cause disease
Pathogens
What are the special structures in plants that can obtain nitrogen from bacteria?
Nodules
Is a virus living or nonliving? Why?
Nonliving because they do not possess the characteristics of living things (growth, reproduction, use of energy, etc.)
Write 0.466666... as a fraction.
42/90
Approximate the square root(47) to the nearest whole number.
7
The use of an organism, such as bacteria, to clean up harmful substances
Bioremediation
Why are some bacterial diseases difficult to treat with antibiotics?
Because the bacteria become resistant to the antibiotics over time.
How do mutations allow viruses to continue causing diseases?
They enable viruses to adjust to changes in cells so it becomes difficult to cure and prevent viral diseases.
Write 1.88888... as a fraction.
17/9
Order from least to greatest: 1/5, -3, square root(5), -6, 4.5
-6, -3, 1/5, square root(5), 4.5
A thick internal wall that forms around the chromosome of a bacterium is called...
An endosphere
Most foods contain bacteria. How can food be treated and processed properly to avoid food poisoning?
Through the process of Pasteurization
Sometimes a person gets infected with a virus and they don't experience symptoms right away. Why?
Because the virus is in the latent stage.
Write 4.05050505... as a fraction.
401/99
Compare the square root of 7 and 3.444444...
Which one is greater? Why?