12/1 Daily Catalyst Pg. 55 Pathogens

DNA mRNA tRNA Amino Acids

TTA 1. 2. 3.

4. AUG 5. 6.

7. AGU 8. Serine

12/1 Daily Catalyst Pg. 55 Pathogens

DNA mRNA tRNA Amino Acids

TTA 1. AAU 2. UUA 3. ASP

4. TAC AUG 5. UAC 6. METH

7. TCA AGU 8. UCA Serine

12/1 Class Business Pg. 55 Pathogens

DNA test corrections due Friday, December 5th

Test key on the website Systems quiz #13 on Friday

See me for tutoring Public health campaign project due this Friday

Sign up to for presentations this week Presentations Thursday and Friday, December

11th-12th Worth a test grade

Updated calendar on the website

What did the snowman say to the customer?

Have an ice day!

12/1 Agenda Pg. 55 Pathogens

Daily Catalyst Class Business Pathogens notes Body systems chart Disease notes

12/1 Objectives

Compare the structures, functions, and cycles of viruses to those of prokaryotic and eukaryotic cells.

Describe the role of viruses in causing diseases and conditions

(example; AIDS, common colds, smallpox, influenza, warts).

The infamous “Tree Disease”

Epidermodysplasia verruciformis A form of the Human Papilloma Virus

(HPV)

Key Point #1

Key Point #: Pathogen An organism that causes disease

Bacteria

Virus

Fungi

Key Point #2: Bacteria

• P________• S________

rokaryotic

ingle-celled

Important bacterial infections

Disease Effect on the bodyLyme disease Bull’s eye rash on

site of a tick bite, fever, fatigue, headache

Tetanus Lockjaw, stiffness in neck, difficulty swallowing

Tuberculosis Fatigue, weight lossStrep throat Fever, sore throat,

headache, fatigue

Key Point #3: Prevention

1. ___________ _________2. Disinfection3. Food storage 4. Sterilization

WASH HANDS

Key Point #4: Treatment

___________block the growth and reproduction of bacteria

Examples: Penicillin and tetracycline

ANTIBIOTICS

Key Point #5: Viruses

1.Not ______2.Made of a protein coat and

genetic material ( )3.Invade living cells to reproduce

LIVING

DNA

Key Point #6: Virus Life Cycle

Lytic cycle-Invades the host cell and kills it IMMEDIATELY.

Lysogenic cycle-Invades the host. Uses the cells DNA. Lives in the cell for awhile before killing it.

Important viral infections

Disease Effect on the bodyCommon cold

Sneezing, sore throat, fever, headache, muscle aches

Influenza (the flu)

Body aches, fever, sore throat, nasal congestions

Hepatitis B Jaundice, fatigue, abdominal pain, nausea, vomiting

West Nile Virus

Fever, headache, body ache

Key Point #7: Prevention

1._____________2.Wash hands 3.Avoiding contact with sick

people

VACCINES

Key Point #8: Treatment

• It is very difficult to treat viral diseases. Since viruses are not alive, you CAN’T kill them with antibiotics.

• There are some important antiviral drugs that make it better to live with a virus, BUT they cannot kill the virus.

• Antiviral drugs and the immune system killing the virus.

HIV/AIDS

Human Immunodeficiency Virus HIV is a virus that attacks the body’s immune

system and prevents it from fighting off other diseases.

HIV is transmitted through unprotected sex, child birth, breast feeding, and sharing needles.

Symptoms of HIV include rapid weight loss, fever, tiredness, flaky skin and heavy night sweats.

HIV is diagnosed by a simple blood test. HIV is treated with antiviral drugs. There is no

cure.

HIV/AIDS

Acquired Deficiency Syndrome HIV will progress to AIDS if left untreated AIDS is the final stage of HIV The body is no longer able to defend

itself AIDS victims are more likely to die from

the Flu of Pneumonia Why?

Unless the course of the epidemic changes, at some point in their lifetime, an estimated 1 in 16 black men and 1 in 32 black women

will be diagnosed with HIV.

How we might be tested on this…

1. Which of the following is TRUE about the prevention/treatment of HIV?

A) There is an HIV vaccine that makes you immune to the virus

B) Although drugs can prolong an infected person’s life, they are not always effective and come with many side effects

C) There is a cure for HIV, but is very expensive; only rich people can afford it

D) Most people recover from HIV on their own within two years

How we might be tested on this…

Disease Treatment Bacteria or Virus

Food poisoning Antibiotics, rest, fluids

HPV No cure. Annual pap-smear exams are recommended for women in order to prevent against cancer

Streptococcus Penicillin and rest

Common cold Take medicine such as Nyquil to treat symptoms (coughing, sneezing, Etc.) Nothing will cure it though

B

VB

V

Turn and Talk with your table

mates:What does this cartoon mean?

Work Time

Directions: Place this chart on Page 56 Body Systems. Use your Biology II textbook, pages 420-421to fill in your chart. What you do not finish in class is homework and will be checked tomorrow.

Time: 15 minutes Noise: 1 (with partner)

GlandsGlands

Ingests & breaks down food

Ingests & breaks down food

Kidneys, bladder, urethra, and ureterKidneys, bladder,

urethra, and ureter

How we might be tested on this…

2. How are diabetes and HIV/AIDS different from each other?

A) HIV/AIDS is potentially lethal, while diabetes is not

B) HIV/AIDS is infectious and spread by certain types of human contact, while diabetes is not infectious

C) A person’s risk of developing HIV/AIDS is affected by their behavior, while diabetes occurs randomly

D) Diabetes can be effectively treated with medication, while HIV/AIDS cannot

How we might be tested on this…

3. Hepatitis B is a contagious disease that damages the liver. It can last a few weeks or can be a serious lifelong illness. It spreads through direct contact with bodily fluids from an infected person. An antigen test must be used to determine whether a person has active hepatitis B, because examining blood under a microscope will not show anything. This evidence shows that the cause of hepatitis B is: A) A virus B) A vitamin deficiency C) A genetic disorder D) A reaction to excess alcohol