Cell - The Unit of Life — Practice Quiz
ICSE · Class 9 · Biology
Try a 4-question quiz on Cell - The Unit of Life for ICSE Class 9 Biology: tap an answer to check it and see why. 42 questions in the full chapter test.
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Quick Quiz: Cell - The Unit of Life
0/4Tap an answer to check it instantly. No sign-up needed for these 4.
Who first observed cells in a thin slice of cork?
Which organelle is known as the 'powerhouse of the cell'?
What is the main component of the cell wall in plants?
Which type of plastids are responsible for the red color in tomatoes?
Sample Questions
Which of the following are parts of the cell theory?
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Cell is the smallest unit of structure of all living things, Cell is the unit of function of all living things, All cells arise from pre-existing cells
The cell theory has three main points: cells are the basic structural unit, functional unit, and all cells come from existing cells. Not all cells have chloroplasts, and cells cannot be created from non-living matter.
The cell membrane is selectively permeable.
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True
The cell membrane is selectively permeable, meaning it allows only certain substances to pass through while preventing others from entering or leaving the cell.
The green pigment in chloroplasts is called ________.
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Chlorophyll
Chloroplasts are green because they contain the pigment chlorophyll. The chapter states that chloroplasts are green coloured plastids and that chlorophyll is their green pigment. Other pigments like carotene and xanthophyll are associated with other colours, while anthocyanins are not plastid pigments.
Match the organelles with their functions:
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Ribosome - Protein synthesis
Each organelle has specific functions: ribosomes make proteins, lysosomes digest waste, Golgi apparatus packages and secretes materials, and nucleus controls cell activities.
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