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Questions and Answers
Cells consist of ____, ____, and ____.
Cells consist of ____, ____, and ____.
Cell membrane, cytoplasm, and nucleus
What functions does the nucleus perform?
What functions does the nucleus perform?
Control cell activities
What is the process called when the nucleus must divide?
What is the process called when the nucleus must divide?
Mitosis
Nucleus contains ____ and ____.
Nucleus contains ____ and ____.
Chromatin is composed of ____.
Chromatin is composed of ____.
In Nucleolus, ____ make ____ and can be found on ____.
In Nucleolus, ____ make ____ and can be found on ____.
What function does the Endoplasmic Reticulum serve?
What function does the Endoplasmic Reticulum serve?
The Cell Membrane is very thick and selectively permeable.
The Cell Membrane is very thick and selectively permeable.
The ____ is selectively permeable and allows for ____ and ____.
The ____ is selectively permeable and allows for ____ and ____.
Diffusion and osmosis are types of ____.
Diffusion and osmosis are types of ____.
Cytoplasm contains ____, such as ____, ____, ____, and ____.
Cytoplasm contains ____, such as ____, ____, ____, and ____.
____ contain ____, which destroy foreign particles.
____ contain ____, which destroy foreign particles.
____ has cristae and provides energy in the form of ____.
____ has cristae and provides energy in the form of ____.
What function does the Golgi Apparatus serve?
What function does the Golgi Apparatus serve?
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Study Notes
Cell Structure and Components
- Cells are made up of three main components: cell membrane, cytoplasm, and nucleus.
- The cell membrane is thin and selectively permeable, regulating entry and exit of substances.
Nucleus Functions and Structure
- The nucleus controls cell activities and must undergo mitosis for cell division.
- Inside the nucleus are the nucleolus and chromatin, where chromatin is primarily composed of DNA.
Nucleolus
- The nucleolus is responsible for synthesizing ribosomes, which aid in protein production located on the endoplasmic reticulum.
Endoplasmic Reticulum
- The endoplasmic reticulum serves as a transport system for various materials within the cell.
Cell Membrane Functions
- The cell membrane facilitates diffusion and osmosis, which are processes of passive transport that move substances across the membrane without energy input.
Cytoplasm Composition
- Cytoplasm contains organelles vital for cellular function, including lysosomes, mitochondria, Golgi apparatus, and the endoplasmic reticulum.
Lysosomes
- Lysosomes contain enzymes that help destroy foreign particles, playing a crucial role in the cell’s defense mechanism.
Mitochondria
- Mitochondria are known for their cristae structure and are responsible for producing ATP, the energy currency of the cell.
Golgi Apparatus
- The Golgi apparatus functions as a delivery system, processing and transporting proteins produced within the cell.
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