Enhance your knowledge with our Cell: The Unit of Life MCQ Test for 11th Biology Chapter 8. This MCQ Test covers cell structures, organelles, and functions to help you understand the basic unit of life better.
Attempt The Unit of Life MCQ Test
Attempt Chapter wise 11th biology MCQ Test and Monthly Quiz contest of Biology 11th grade.
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Summary for The Unit of Life MCQ Test
All organisms are made up of cells, which can vary in shape, size, and function. Cells are classified as eukaryotic or prokaryotic based on the presence or absence of a membrane-bound nucleus and other organelles.
A typical eukaryotic cell includes:
- Cell membrane: Selectively permeable, controlling the transport of molecules.
- Nucleus: Contains nucleoli and chromatin, controlling cell activities and heredity.
- Cytoplasm: Contains various organelles performing specific functions.
- Plant cells: Have a cell wall outside the cell membrane.
The endomembrane system includes:
- Endoplasmic reticulum (ER): Rough (with ribosomes) and smooth, involved in the transport and synthesis of proteins, lipoproteins, and glycogen.
- Golgi complex: Packages and transports cell secretions.
- Lysosomes: Contain enzymes for digestion.
- Vacuoles: Storage and waste disposal.
Other organelles:
- Centrosome and centrioles: Form basal bodies of cilia and flagella for movement, and in animal cells, form the spindle apparatus during cell division.
- Ribosomes: Protein synthesis, found freely in the cytoplasm or on the ER.
- Mitochondria: Site of oxidative phosphorylation and ATP generation, with a double membrane and inner folds called cristae.
- Plastids (in plant cells): Include chloroplasts (for photosynthesis) with chlorophyll, and chromoplasts with pigments like carotene and xanthophyll.
The nucleus is enclosed by a double membrane structure with pores, containing nucleoplasm and chromatin material. The cell is the fundamental structural and functional unit of life.
Chapter wise biology 11th grade mcq
Chapter 1 The Living World MCQ Test
Chapter 2 Biological Classification MCQ Test
Chapter 3 Plant Kingdom MCQ Test
Chapter 4 Animal Kingdom MCQ Test
Chapter 5 Morphology of Flowering Plants MCQ Test
Chapter 6 Anatomy of Flowering Plants MCQ Test
Chapter 7 Structural Organisation in Animals MCQ Test
Chapter 8 Cell The Unit of Life Quiz
Chapter 9 Biomolecules MCQ Test
Chapter 10 Cell Cycle and Cell Division MCQ Test
Chapter 11 Photosynthesis in Higher Plants MCQ Test
Chapter 12 Respiration in Plants MCQ Test
Chapter 13 Plant Growth and Development MCQ Test
Chapter 14 Breathing and Exchange of Gases MCQ Test
Chapter 15 Body Fluids and Circulation MCQ Test
Chapter 16 Excretory Products and their Elimination MCQ Test
Chapter 17 Locomotion and Movement MCQ Test
Chapter 18 Neural Control and Coordination MCQ Test
Chapter 19 Chemical Coordination and Integration MCQ Test
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