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Questions and Answers
Which cellular structure is responsible for converting nutrients into energy that can be used by the cell?
Which cellular structure is responsible for converting nutrients into energy that can be used by the cell?
- Endoplasmic Reticulum
- Ribosomes
- Mitochondria (correct)
- Nucleus
What is the function of the nuclear membrane?
What is the function of the nuclear membrane?
- Producing proteins for the cell
- Protecting and regulating the nucleus (correct)
- Generating energy for the cell
- Controlling the movement of substances into and out of the cell
Which of the following structures is NOT directly involved in the production of proteins?
Which of the following structures is NOT directly involved in the production of proteins?
- Mitochondria (correct)
- Ribosomes
- Nucleolus
- Endoplasmic Reticulum
The cytoplasm is best described as:
The cytoplasm is best described as:
What is the primary function of the plasma membrane?
What is the primary function of the plasma membrane?
Flashcards
Plasma Membrane
Plasma Membrane
The permeable membrane surrounding the cell, controlling entry and exit of substances.
Cytoplasm
Cytoplasm
Gel-like fluid inside the cell that contains organelles and nutrients.
Nucleus
Nucleus
The control center of the cell, housing the DNA and directing cell activities.
Mitochondria
Mitochondria
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Ribosomes
Ribosomes
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Study Notes
Cell Structure and Function
- Plasma Membrane: A permeable membrane surrounding the entire cell, essential for life.
- Cytoplasm: A gel-like fluid filling the cell, containing electrolytes, metabolic waste, and nutrients. It houses cell structures.
- Nucleus: The control center of the cell, containing DNA. Located at the center of the cell.
- Nuclear Membrane: A double-layered, porous membrane surrounding the nucleus, protecting it.
- Nucleolus: A dark body within the nucleus, forming rRNA (ribosomes). It lacks an enclosing membrane.
- Mitochondria: Rod-shaped bodies within the cytoplasm, converting nutrients into energy for the cell's use (the cell's power plant).
- Ribosomes: RNA found in the nucleolus, responsible for protein synthesis; found both attached and free within the cell.
- Ribosomes: RNA. A critical component for protein synthesis.
- Cilia: Short microtubules that move things along the cell surface.
- Flagella: Long microtubules that move the entire cell.
- Endoplasmic Reticulum: A transport system connecting the cell membrane to the nucleus, transporting materials throughout the cell.
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