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Question
A phylum common to unicellular plants and animals is
A phylum common to unicellular plants and animals is
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Solution
The correct option is D Protista
General characteristics of Kingdom Protista are as follows: - They are simple eukaryotic organisms.
- Most of the organisms are unicellular, some are colonial and some are multicellular like algae.
- Most of the protists live in water, some in moist soil or even the body of human and plants.
- These organisms are eukaryotic, since they have a membrane bound nucleus and endomembrane systems.
- They have mitochondria for cellular respiration and some have chloroplasts for photosynthesis.
- Nuclei of protists contain multiple DNA strands, the number of nucleotides are significantly less than complex eukaryotes.
- Movement is often by flagella or cilia.
- Protists are multicellular organisms, they are not a plant, animal or fungus.
- Respiration- cellular respiration is primarily aerobic process, but some living in mud below ponds or in digestive tracts of animals ares strict facultative anaerobes.
- Nutrition- they can be both hetreotrophic or autotrophic.
- Flagellates are filter feeding, some protists feed by the process of endocytosis (formation of food vacuole by engulfing a bacteria and extending their cell membrane).
- Reproduction- some species have complex life cycle involving multiple organisms. Example: Plasmodium. Some reproduce sexually and others asexually.
- They can reproduce by mitosis and some are capable of meiosis for sexual reproduction.
- They form cysts in adverse conditions.
- Some protists are pathogens of both animals and plants. Example: Plasmodium falciparum causes malaria in humans.
- Protists are major component of plankton.
General characteristics of Kingdom Protista are as follows:
- They are simple eukaryotic organisms.
- Most of the organisms are unicellular, some are colonial and some are multicellular like algae.
- Most of the protists live in water, some in moist soil or even the body of human and plants.
- These organisms are eukaryotic, since they have a membrane bound nucleus and endomembrane systems.
- They have mitochondria for cellular respiration and some have chloroplasts for photosynthesis.
- Nuclei of protists contain multiple DNA strands, the number of nucleotides are significantly less than complex eukaryotes.
- Movement is often by flagella or cilia.
- Protists are multicellular organisms, they are not a plant, animal or fungus.
- Respiration- cellular respiration is primarily aerobic process, but some living in mud below ponds or in digestive tracts of animals ares strict facultative anaerobes.
- Nutrition- they can be both hetreotrophic or autotrophic.
- Flagellates are filter feeding, some protists feed by the process of endocytosis (formation of food vacuole by engulfing a bacteria and extending their cell membrane).
- Reproduction- some species have complex life cycle involving multiple organisms. Example: Plasmodium. Some reproduce sexually and others asexually.
- They can reproduce by mitosis and some are capable of meiosis for sexual reproduction.
- They form cysts in adverse conditions.
- Some protists are pathogens of both animals and plants. Example: Plasmodium falciparum causes malaria in humans.
- Protists are major component of plankton.
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