Protist

Classification Take the shapes given and put them in categories.

Protist Protists live in almost any environment that contains liquid water. mostly unicellular organisms Size 1. Fungi 2. Protist 3. Bacteria (Monera) 4. Virus

Protist on the Move Flagella Cilia Pseudopod Whip-like tail Small, hair-like extensions False foot Propels the Protist Work like mini oars or to move food Reaches out to drag itself or to capture food

Three groups Plant-like Protist Animal-like Protist Fungi-like Protist

Animal-like Called Protozoan's Can live in fresh or salt water, soil or in organisms Examples: Paramecium, Amoebas, Flagellates, Plasmodium

Plant-like Usually called algae. Examples: Euglena, Brown Algae, Red Algae, Diatoms

Fungus-like Similar to Fungi in that they decompose. Eat off leaves in forests and rotting trees Examples: Slime Mold

Helpful Primary food source for many ocean animals (Whales, kelp) Used in food such as ice cream and sushi Used in items such as paint, cosmetics, toothpaste Make oxygen Decomposers

Harmful Disease (malaria and giardia)

Charles Laveran (1857-1922) In 1880, while working in a military hospital Charles Laveran discovered that the cause of malaria is a protozoan after observing the parasites in a blood spear taken from a patient who had just died of the disease. He later worked on other diseases like sleeping sickness. For this work and later discoveries of protozoan diseases, he was awarded the 1907 Nobel Prize for Physiology of Medicine.

Sir Ronal Ross (1857-1932) In 1897, while living in India, Ross became ill with malaria. Once he recovered, he began to study the disease specifically looking at mosquitoes and birds infected with the disease. He soon discovered the entire life cycle of the malarial parasite. He was able to prove that malaria was passed from infected birds by mosquitoes and other animals including humans. In 1902, he was awarded the Nobel Prize for Physiology of Medicine for his discovery.

Review 1. Which is the best to describe where microorganisms live? Dark and cold places Nearly everywhere Sunny, Dry places Underwater

2. Bacteria are classified by_________ a. color b. shape c 2. Bacteria are classified by_________ a. color b. shape c. where they live d. size

Which statement is true of ALL bacteria? All bacteria are producers. All bacteria are single-celled organisms. All bacteria have a cell with a nucleus. All bacteria live in water.

4. What is the function of a cilia. a. To control cell division b 4. What is the function of a cilia? a. To control cell division b. To take in water and remove waste. c. To make food from sunshine and air d. To move the paramecium

How do bacteria help our bodies function. a How do bacteria help our bodies function? a. They make our muscles and lungs stronger. b. They help carry oxygen through our blood. c. They help to digest food in the intestines. d. They make our skin flexible and clean.

6. What do we call organisms that obtain food by feeding on dead or decaying organisms? a. Algae b. Decomposers c. Flagellate d. Parasites

An antibiotic is a drug used to kill______ a. bacteria b. viruses c. colds d. fungus

Why are decomposers helpful to the food chain? a. They prey on carnivores. b. They use photosynthesis to make food c. They are food for carnivores. d. They provide nutrients for the soil.

9. Which of the following is most responsible for the decay of dead organisms? a. mammals b. water c. microorganisms d. nitrogen