Podcast
Questions and Answers
What is the primary function of the mitochondria within a cell?
What is the primary function of the mitochondria within a cell?
- Control movement in and out of the cell
- Transport materials
- Produce energy (correct)
- Store genetic information
Which statement accurately describes prokaryotic cells?
Which statement accurately describes prokaryotic cells?
- They lack a nucleus (correct)
- They are always larger than eukaryotic cells
- They have a defined nucleus
- They are complex and contain organelles
What is one main idea of the cell theory?
What is one main idea of the cell theory?
- All cells contain organelles
- Cells are the largest unit of life
- Cells can originate from non-living materials
- All living things are made of cells (correct)
What role do lysosomes play in a cell?
What role do lysosomes play in a cell?
What key feature distinguishes eukaryotic cells from prokaryotic cells?
What key feature distinguishes eukaryotic cells from prokaryotic cells?
Flashcards
Prokaryotic cell
Prokaryotic cell
A type of cell that doesn't have a nucleus, small and simple, such as bacteria.
Eukaryotic cell
Eukaryotic cell
A type of cell with a nucleus, larger and more complex, like plant and animal cells.
Cell theory
Cell theory
Three main ideas about cells: all living things are made of one or more cells, cells are the basic unit of life (structure and function of living organisms) , and all cells come from pre-existing cells.
Mitochondria
Mitochondria
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Nucleus
Nucleus
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Study Notes
Cell Structures
- Nucleus: Control center, contains genetic information
- Cytoplasm: Jelly-like substance, organelles float within
- Cell Membrane: Protects cell, controls movement in and out
- Mitochondria: Powerhouse of the cell
- Ribosomes: Protein production site
- Endoplasmic Reticulum: Transports materials within cells
- Golgi Bodies: Packages and distributes materials
- Lysosomes: Digest unwanted materials
Cell Types
- Prokaryotic: Bacteria, lack a nucleus, simple cells
- Eukaryotic: Plants and animals, have a nucleus, complex cells
Cell Theory
- All living things are composed of one or more cells
- Cells are the basic unit of life and structure
- All cells come from pre-existing cells
Important Cell Facts
- The smallest unit of life is a cell
- Robert Hooke observed cells in cork using a microscope
- Mitochondria is the powerhouse of the cell
- Prokaryotic cells lack a nucleus
- Cell walls provide shape and structure in plant cells (animals do not have cell walls)
- The nucleus contains the cell's DNA
- Lysosomes break down unwanted materials within the cell
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