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Direction: All living Organisms are made up of cells and these cells perform all the functions essential for the survival of the Organism eg. respiration, digestion, excretion etc. In Unicellular organisms, a single cell carries out all these functions and in multicellular organisms different group of cells carry out different functions.
Q. The Cell which do not have a fixed shape
- a)Red Blood Cells
- b)Paramecium
- c)Amoeba
- d)All of these
Correct answer is option 'C'. Can you explain this answer?
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Direction: All living Organisms are made up of cells and these cells ...
Both Amoeba and while blood cells of humans do not have any fixed shape.
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Direction: All living Organisms are made up of cells and these cells ...
The correct answer is option 'C' - Amoeba.
Explanation:
The cell which does not have a fixed shape is Amoeba. Let's understand why.
1. Unicellular and Multicellular Organisms:
- Unicellular organisms are composed of a single cell, which carries out all the essential functions for their survival.
- Multicellular organisms are composed of multiple cells, where different groups of cells perform specific functions.
2. Cell Shape:
- Cells in multicellular organisms have a specific shape and structure, which is important for their function.
- However, Amoeba is a unicellular organism that does not have a fixed shape. It is capable of changing its shape constantly.
3. Structure of Amoeba:
- Amoeba is a type of protozoan, which is a single-celled organism.
- It belongs to the group of organisms called Protozoa, which are eukaryotic microorganisms.
- The structure of Amoeba consists of a cell membrane, cytoplasm, nucleus, and a contractile vacuole.
4. Pseudopodia:
- Amoeba moves and captures its food using pseudopodia.
- Pseudopodia are temporary extensions of the cell membrane that allow Amoeba to change its shape and move.
- The formation of pseudopodia gives Amoeba its characteristic amoeboid shape, which is constantly changing.
5. Freedom of Movement:
- Amoeba can change its shape and move in any direction by extending and retracting its pseudopodia.
- This flexibility allows Amoeba to engulf its food and move towards favorable conditions.
6. Comparison with other cells:
- Red blood cells (RBCs) have a biconcave shape and lack a nucleus. They are responsible for carrying oxygen to various parts of the body.
- Paramecium is another unicellular organism that has a fixed shape, with a characteristic slipper-like appearance. It moves using cilia and performs various functions.
- Unlike RBCs and Paramecium, Amoeba does not have a fixed shape and can constantly change its form.
In conclusion, among the given options, Amoeba is the cell that does not have a fixed shape. Its ability to change its shape using pseudopodia allows it to move, capture food, and survive in its environment.
Explanation:
The cell which does not have a fixed shape is Amoeba. Let's understand why.
1. Unicellular and Multicellular Organisms:
- Unicellular organisms are composed of a single cell, which carries out all the essential functions for their survival.
- Multicellular organisms are composed of multiple cells, where different groups of cells perform specific functions.
2. Cell Shape:
- Cells in multicellular organisms have a specific shape and structure, which is important for their function.
- However, Amoeba is a unicellular organism that does not have a fixed shape. It is capable of changing its shape constantly.
3. Structure of Amoeba:
- Amoeba is a type of protozoan, which is a single-celled organism.
- It belongs to the group of organisms called Protozoa, which are eukaryotic microorganisms.
- The structure of Amoeba consists of a cell membrane, cytoplasm, nucleus, and a contractile vacuole.
4. Pseudopodia:
- Amoeba moves and captures its food using pseudopodia.
- Pseudopodia are temporary extensions of the cell membrane that allow Amoeba to change its shape and move.
- The formation of pseudopodia gives Amoeba its characteristic amoeboid shape, which is constantly changing.
5. Freedom of Movement:
- Amoeba can change its shape and move in any direction by extending and retracting its pseudopodia.
- This flexibility allows Amoeba to engulf its food and move towards favorable conditions.
6. Comparison with other cells:
- Red blood cells (RBCs) have a biconcave shape and lack a nucleus. They are responsible for carrying oxygen to various parts of the body.
- Paramecium is another unicellular organism that has a fixed shape, with a characteristic slipper-like appearance. It moves using cilia and performs various functions.
- Unlike RBCs and Paramecium, Amoeba does not have a fixed shape and can constantly change its form.
In conclusion, among the given options, Amoeba is the cell that does not have a fixed shape. Its ability to change its shape using pseudopodia allows it to move, capture food, and survive in its environment.
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Direction: All living Organisms are made up of cells and these cells perform all the functions essential for the survival of the Organism eg. respiration, digestion, excretion etc. In Unicellular organisms, a single cell carries out all these functions and in multicellular organisms different group of cells carry out different functions.Q. The Cell which do not have a fixed shapea)Red Blood Cellsb)Parameciumc)Amoebad)All of theseCorrect answer is option 'C'. Can you explain this answer?
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Direction: All living Organisms are made up of cells and these cells perform all the functions essential for the survival of the Organism eg. respiration, digestion, excretion etc. In Unicellular organisms, a single cell carries out all these functions and in multicellular organisms different group of cells carry out different functions.Q. The Cell which do not have a fixed shapea)Red Blood Cellsb)Parameciumc)Amoebad)All of theseCorrect answer is option 'C'. Can you explain this answer? for Class 9 2024 is part of Class 9 preparation. The Question and answers have been prepared according to the Class 9 exam syllabus. Information about Direction: All living Organisms are made up of cells and these cells perform all the functions essential for the survival of the Organism eg. respiration, digestion, excretion etc. In Unicellular organisms, a single cell carries out all these functions and in multicellular organisms different group of cells carry out different functions.Q. The Cell which do not have a fixed shapea)Red Blood Cellsb)Parameciumc)Amoebad)All of theseCorrect answer is option 'C'. Can you explain this answer? covers all topics & solutions for Class 9 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Direction: All living Organisms are made up of cells and these cells perform all the functions essential for the survival of the Organism eg. respiration, digestion, excretion etc. In Unicellular organisms, a single cell carries out all these functions and in multicellular organisms different group of cells carry out different functions.Q. The Cell which do not have a fixed shapea)Red Blood Cellsb)Parameciumc)Amoebad)All of theseCorrect answer is option 'C'. Can you explain this answer?.
Direction: All living Organisms are made up of cells and these cells perform all the functions essential for the survival of the Organism eg. respiration, digestion, excretion etc. In Unicellular organisms, a single cell carries out all these functions and in multicellular organisms different group of cells carry out different functions.Q. The Cell which do not have a fixed shapea)Red Blood Cellsb)Parameciumc)Amoebad)All of theseCorrect answer is option 'C'. Can you explain this answer? for Class 9 2024 is part of Class 9 preparation. The Question and answers have been prepared according to the Class 9 exam syllabus. Information about Direction: All living Organisms are made up of cells and these cells perform all the functions essential for the survival of the Organism eg. respiration, digestion, excretion etc. In Unicellular organisms, a single cell carries out all these functions and in multicellular organisms different group of cells carry out different functions.Q. The Cell which do not have a fixed shapea)Red Blood Cellsb)Parameciumc)Amoebad)All of theseCorrect answer is option 'C'. Can you explain this answer? covers all topics & solutions for Class 9 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Direction: All living Organisms are made up of cells and these cells perform all the functions essential for the survival of the Organism eg. respiration, digestion, excretion etc. In Unicellular organisms, a single cell carries out all these functions and in multicellular organisms different group of cells carry out different functions.Q. The Cell which do not have a fixed shapea)Red Blood Cellsb)Parameciumc)Amoebad)All of theseCorrect answer is option 'C'. Can you explain this answer?.
Solutions for Direction: All living Organisms are made up of cells and these cells perform all the functions essential for the survival of the Organism eg. respiration, digestion, excretion etc. In Unicellular organisms, a single cell carries out all these functions and in multicellular organisms different group of cells carry out different functions.Q. The Cell which do not have a fixed shapea)Red Blood Cellsb)Parameciumc)Amoebad)All of theseCorrect answer is option 'C'. Can you explain this answer? in English & in Hindi are available as part of our courses for Class 9.
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