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Questions and Answers
What is the function of the endoplasmic reticulum in a cell?
Why does the rough endoplasmic reticulum appear bumpy?
Where are chromosomes found in a cell?
Which organelle is known as the powerhouse of the cell?
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What is the function of lysosomes in a cell?
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Why are lysosomes called 'suicide sacs'?
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Which organelle is responsible for packaging and distributing substances in the cell?
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Where is ATP produced in a cell?
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What is the function of the cell membrane in a cell?
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Why are organelles often referred to as the 'little organs' of the cell?
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Which organelle is considered the control center or brain of the cell?
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Where are most cellular activities taking place within a cell?
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What is the primary function of the nucleus in a cell?
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What do organelles of a cell have in common with organs in the human body?
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What distinguishes organelles from each other within a cell?
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Study Notes
Cellular Organelles and Their Functions
- The endoplasmic reticulum (ER) is a type of organelle responsible for synthesizing proteins and lipids, and transporting them to other parts of the cell.
Endoplasmic Reticulum
- The rough endoplasmic reticulum appears bumpy due to the presence of ribosomes attached to its surface.
Chromosomes
- Chromosomes are found in the nucleus of a cell.
Mitochondria
- Mitochondria are known as the powerhouse of the cell, responsible for generating most of the cell's energy in the form of ATP (adenosine triphosphate).
Lysosomes
- Lysosomes are membrane-bound organelles that contain digestive enzymes and are responsible for breaking down and recycling cellular waste and foreign substances.
- Lysosomes are called 'suicide sacs' because they can self-destruct by releasing their digestive enzymes to break down the cell's own components if needed.
Golgi Apparatus
- The Golgi apparatus is an organelle responsible for packaging and distributing substances within the cell.
ATP Production
- ATP is produced in the mitochondria of a cell.
Cell Membrane
- The cell membrane, also known as the plasma membrane, is a thin layer of lipid and protein molecules that surrounds the cell and regulates the movement of materials in and out of the cell.
Organelles
- Organelles are often referred to as the 'little organs' of the cell because they perform specific functions, similar to how organs perform specific functions in the human body.
- The nucleus is considered the control center or brain of the cell, where most cellular activities take place.
- The primary function of the nucleus is to store and protect the cell's genetic material, DNA.
Nucleus
- The nucleus is the control center of the cell, where most cellular activities take place.
Comparison to Human Body Organs
- Organelles of a cell have in common with organs in the human body that they perform specific functions necessary for the survival of the cell or organism.
Distinctive Features of Organelles
- What distinguishes organelles from each other within a cell is their unique structure and function.
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Description
Join Joe, a human cell, on his visit to the cell doctor for a checkup. Explore the examination of Joe's outer covering, the cell membrane, and learn about its functions and importance in the cell.
