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Slide 1: Kingdom Protista
Slide 2: General Characteristics eukaryotic All are ____________ unicellular Most are___________ , some are multicellular They can be producers, consumers or both
Slide 3: Protist Classification One way they are classified is by how they get their nutrients: Fungus-like protists get their nutrients from dead organisms Plant-like protists are producers Animal-like protists are consumers
Slide 4: Fungus-like protists decomposers They can be _______________ (get their food from dead organic matter) or parasites ___________ (get their food from other organisms) There are two types: Slime molds and Water molds. Water Mold Slime Mold
Slide 5: Slime Molds Thin masses of living matter. They are colorful, shapeless blobs. Most are single celled, but sometimes they join together to form groups when they are stressed. moist cool shady Live in _________, ___________, ___________ places in the woods and freshwater. When the conditions are bad, they can develop a spores stalk-like structure that contains ________. The spores can survive for a long time.
Slide 6: Slime Molds
Slide 7: Water Molds Small, single-celled organisms Some are decomposers, many are parasitic _________. They live in water, moist soil or in other organisms. Some cause diseases - the potato famine was caused by a water mold! Parasitic hosts include: plants, animals, algae and fungi.
Slide 8: Water Molds
Slide 9: Plant-like Protists These protists are also known as algae. They use _________________ to get their photosynthesis energy. Almost all plant-like protists live in water. They can be unicellular or multicellular. The single celled protists are called phytoplankton. They provide food for many organisms. Multi-cellular plant-like protists are knowns as seaweed or kelp.
Slide 10: Plant-like Protists Single-celled algae cannot be seen without a microscope. They are often found floating near the surface of the water and make up phytoplankton. These phytoplankton provide most of the oxygen world’s________! Click the picture
Slide 11: Plant-like Protists
Slide 12: Plant-like Protists
Slide 13: There are several types of plant-like protists They are classified based on color and cell structure. There are three types of algae • Brown algae • Green algae • Red algae Diatoms Dinoflagellates Euglenoids
Slide 14: the red pigment allows them to absorb more light. Red ____ Algae -
Slide 15: many can grow to be over 60 meters! Kelp is a type of brown algae. Brown ______ Algae -
Slide 16: most live in water or moist soil. Volvox is a green algae that grows in colonies. Green ______ Algae - QuickTimeª and a decompressor are needed to see this picture.
Slide 17: single-celled organisms found in both salt and fresh water. Their cell walls contain silica - a glass-like substance. Diatoms __________-
Slide 18: Dinoflagellates ______________ Protists that have ___ flagella. 2 QuickTimeª and a decompressor are needed to see this picture.
Slide 19: Dinoflagellates Some are red and produce a strong poison. If they multiply quickly, they can turn the water red, causing a dangerous condition red tide called ___________. QuickTimeª and a decompressor are needed to see this picture. QuickTimeª and a decompressor are needed to see this picture.
Slide 20: Are single-celled, mainly living in freshwater. They often have characteristics of both plants and animals. ___________ Euglenoids
Slide 21: Euglenoids They can’t see, but they have an eyespot __________ that can detect light. When there is plenty of sunlight, they are producers. When there is not enough sunlight, they can become consumers. flagella Most have two ________.
Slide 22: Animal-like Protists Single-celled consumers Some are parasites Most can move on their own Divided into 4 groups based on how they move _______. 4 groups: Amoeba-like Flagellates Ciliates Spore-forming
Slide 23: Amoeba-like _____________Protists soft, jelly-like Their shape is constantly changing as a new pseudopodia forms. Pseudopodia false feet means __________.
Slide 24: They also have contractile vacuoles to get ________________ rid of excess water. engulfing They feed by ___________ food. An amoeba will surround the food with its pseudopodia, forming a food vacuole. Some amoebas actually have an outer shell ________. Click here Amoeba-like Protists
Slide 25: these protozoa use flagella to move. Flagellates ___________ - QuickTimeª and a GIF decompressor are needed to see this picture.
Slide 26: Flagellates Some live in water, others are parasites that can cause disease. When drinking water from rivers and lakes, it’s important to boil the water first! This kills parasites like giardia. If you drink water with giardia in it, you will become sick with diarrhea and severe stomach cramps! :-(
Slide 27: have hundreds of tiny hair-like structures known as cilia. They are used for movement and at times for eating. ________ Cilliates
Slide 28: are all parasites that absorb nutrients from their hosts. They cannot move on their own. A spore forming QuickTimeª and a decompressor protist inside a are needed to see this picture. bacterium Spore-forming ______________ Protists - QuickTimeª and a decompressor are needed to see this picture. Plasmodium invading red blood cells
Slide 29: Reproduction in Protists Option #1 - Asexually The parent cell divides by a process called fission ___________. Both new cells are genetically identical.
Slide 30: Reproduction in Protists Option #2 - Sexually Paramecia often reproduce sexually by a conjugation process called ____________. Two join together and exchange genetic material. four They then divide to produce ______ organisms with new combinations of genetic material.
Slide 31: Reproduction in Protists Option #3 - do both! Many protists reproduce both sexually and asexually, sometimes alternating from one generation to the next. Click here
Slide 32: Protist Parasites Click for a movie!