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| Question | Answer |
| Main characteristics of protoctists | • Mostly unicellular • Heterotrophic or autotrophic • Live in water • Eukaryotic |
| TWO TYPES OF PROTOCTISTS | 1. Protozoa 2. Algae |
| PROTOZOA | |
| ALGAE | |
| PROTOZOA CHARACTERISTICS | -Single cell. -Primary consumers. -Some are parasites. -Reproduce asexually. -Different shapes |
| Depending on the movement, protozoa are classified in... | • Flagellates • Amoeboids • Ciliates |
| Classification of protozoa | • Flagellates • Rhizopods • Ciliates • Sporozoa |
| 3 characteristics of flagellates | • Single-celled with flagella. • Live as unicellular or parasites. • Absorb food across membrane. |
| 3 characteristics of rhizopods | - No define shape. - Locomotory organs are pseudopods. - No permanent mouth or anus. |
| 2 characteristics of ciliates | - Body covered by cilia. - Fixed permanent shape. |
| 2 characteristics of sporozoa | - Reproduction by spore formation. - Parasites of animals. |
| FLAGELLATE | |
| RHIZOPOD | |
| CILIATE | |
| SPOROZOA | |
| Importance of protozoa | - Food source for animals. - Oxygen molecules released. - Symbiotic relationships with higher organism. - Biological indicators. - Cause diseases. |
| Two diseases caused by protozoas | - Malaria - African sleeping sickness. |
| Characteristics of algae | - Eukaryotic cells. - Perform photosynthesis. - Autotrophic nutrition. - Producers - Don’t have specialized organs or tissues. |
| 3 types of algae cellular organization | - Unicellular - Colonial - Multicellular |
| UNICELLULAR | |
| COLONIAL | |
| MULTICELLULAR | |
| According to their photosynthetic pigment, algae are divided into… | - Red algae - Brown algae - Green algae |
| Importance of algae | - Producers of organic matter. - Produce over 50% of oxygen. - Important in pharmaceutical and food industry. - Used to identify environmental problems. |
| 3 main characteristics of bacteria | - Cell organization: unicellular and prokaryotic. - Microscopic - Live in every environment |
| Types of bacteria | - Coccus - Bacillus - Spirillum |
| COCCUS | |
| BACILLUS | |
| SPIRILLUM | |
| Depending on the way bacteria obtain the organic matter can be classified intro 3 types, which are... | - Symbionts - Parasites - Saprophytes |
| Bacteria reproduction | 1. Spore coat 2. Binary fission |
| Beneficial uses of bacteria | - Provide oxygen - Help make antibiotics - Food production |
| Harmful effects of bacteria | - Cause diseases |
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