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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