M5 Subtopic 1 Flashcards
The smallest unit of life that can function independently and perform all the necessary functions of life, including metabolism, growth, and reproduction
Often referred to as the “building blocks of life” because all living organisms are made up of it.
Cell
This type of cell has no nucleus
Prokaryotic Cell
This type of cell has a nucleus
Eukaryotic Cell
Cell Theory (3)
All Living Things are Composed of One or More Cells
The Cell is the Basic Unit of Structure and Organization in Organisms
All Cells Arise from Pre-existing Cells
An organism that has only one single cell, like most kinds of bacteria. Single cells manage all activities.
Unicellular
An organism composed of many different cells with different functions.
Multicellular
New cells are formed through a general process, where a parent cell divides to produce two or more daughter cells.
Cell Division
A process that results in two genetically identical daughter cells from a single parent cell, crucial for growth and repair.
Mitosis
A specialized form of cell division that produces gametes (sperm and egg cells),reducing the chromosome number by half, ensuring genetic diversity in sexually reproducing organisms.
Meiosis
The Three Basic Cell Structure:
Nucleus
Cytoplasm
Cell membrane
the control center of the cell, often referred to as the “brain” of the cell.
Nucleus
This is where ribosomal RNA (rRNA) is synthesized and combined with proteins to form ribosomes.
Nucleolus
AKA plasma membrane, a selectively permeable barrier that surrounds the cell, controlling the movement of substances in and out of the cell.
Cell Membrance
The jelly-like substance within the cell that contains all the organelles, excluding the nucleus.
Also provides a medium where many of the cell’s metabolic reactions occur.
Cytoplasm
Powerhouses of the cell, responsible for producing energy in the form of adenosine triphosphate.
Mitochondria