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Practice Quiz or MCQ (Multiple Choice Questions) with solutions are available for Practice, which would help you prepare for chapter Cell Structure and Functions, Class 8, Science. You can practice these practice quizzes as per your speed and improvise the topic.
Q. A plant cell lacks:
- a)plasma membrane
- b)mitochondria
- c)haemoglobin
- d)all of them
Correct answer is option 'A'. Can you explain this answer?
Most Upvoted Answer
Practice Quiz or MCQ (Multiple Choice Questions) with solutions are av...
Explanation:
Plant cells and animal cells have many similarities, but they also have some differences. One of the main differences between plant and animal cells is that plant cells have a cell wall, chloroplasts, and a large central vacuole. In contrast, animal cells do not have a cell wall and chloroplasts, and their vacuoles are much smaller.
Plasma membrane in plant cells:
Like animal cells, plant cells also have a plasma membrane. Plasma membrane, also called a cell membrane, is a thin, semi-permeable membrane that encloses the protoplasm of a cell and separates the cell from its environment. It controls the passage of materials in and out of the cell.
Mitochondria in plant cells:
Mitochondria are organelles found in eukaryotic cells, including plant cells and animal cells. They are often called the powerhouse of the cell because they generate most of the cell's energy through a process called cellular respiration. Plant cells contain mitochondria, and they play an important role in the production of ATP.
Haemoglobin in plant cells:
Haemoglobin is a protein found in red blood cells of animals. It is responsible for carrying oxygen from the lungs to the body tissues and carbon dioxide from the tissues to the lungs. Plant cells do not have haemoglobin because they do not have red blood cells.
Conclusion:
The correct answer to the question is option 'A' because plant cells have a plasma membrane, mitochondria, and other organelles, but they do not lack a cell membrane. A plant cell is enclosed by a cell wall, which provides additional support and protection to the cell.
Plant cells and animal cells have many similarities, but they also have some differences. One of the main differences between plant and animal cells is that plant cells have a cell wall, chloroplasts, and a large central vacuole. In contrast, animal cells do not have a cell wall and chloroplasts, and their vacuoles are much smaller.
Plasma membrane in plant cells:
Like animal cells, plant cells also have a plasma membrane. Plasma membrane, also called a cell membrane, is a thin, semi-permeable membrane that encloses the protoplasm of a cell and separates the cell from its environment. It controls the passage of materials in and out of the cell.
Mitochondria in plant cells:
Mitochondria are organelles found in eukaryotic cells, including plant cells and animal cells. They are often called the powerhouse of the cell because they generate most of the cell's energy through a process called cellular respiration. Plant cells contain mitochondria, and they play an important role in the production of ATP.
Haemoglobin in plant cells:
Haemoglobin is a protein found in red blood cells of animals. It is responsible for carrying oxygen from the lungs to the body tissues and carbon dioxide from the tissues to the lungs. Plant cells do not have haemoglobin because they do not have red blood cells.
Conclusion:
The correct answer to the question is option 'A' because plant cells have a plasma membrane, mitochondria, and other organelles, but they do not lack a cell membrane. A plant cell is enclosed by a cell wall, which provides additional support and protection to the cell.
Community Answer
Practice Quiz or MCQ (Multiple Choice Questions) with solutions are av...
No. This is wrong. Correct Answer is c
https://courses.lumenlearning.com/boundless-biology/chapter/eukaryotic-cells/
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Practice Quiz or MCQ (Multiple Choice Questions) with solutions are available for Practice, which would help you prepare for chapter Cell Structure and Functions, Class 8, Science. You can practice these practice quizzes as per your speed and improvise the topic.Q.A plant cell lacks:a)plasma membraneb)mitochondriac)haemoglobind)all of themCorrect answer is option 'A'. Can you explain this answer?
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