15 Questions
What is the function of the endoplasmic reticulum in a cell?
Transporting substances throughout the cell
Why does the rough endoplasmic reticulum appear bumpy?
It is covered with ribosomes
Where are chromosomes found in a cell?
Nucleus
Which organelle is known as the powerhouse of the cell?
Mitochondria
What is the function of lysosomes in a cell?
Digesting food and cell debris
Why are lysosomes called 'suicide sacs'?
Because they digest and destroy the cell if they malfunction
Which organelle is responsible for packaging and distributing substances in the cell?
Golgi bodies
Where is ATP produced in a cell?
Mitochondria
What is the function of the cell membrane in a cell?
Control the movement of substances into and out of the cell
Why are organelles often referred to as the 'little organs' of the cell?
Because they are metabolic machines where cell activities occur
Which organelle is considered the control center or brain of the cell?
Nucleus
Where are most cellular activities taking place within a cell?
Cytoplasm
What is the primary function of the nucleus in a cell?
Control center of the cell
What do organelles of a cell have in common with organs in the human body?
Both perform specific functions to maintain overall cell or body function
What distinguishes organelles from each other within a cell?
Function and structure
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.
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.
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