History of cell biology and basic parts of a cell
Define what a cell is?
A small unit that can carry on all of the processes of life
What is an organelle?
A intracellular bodies that perform specific functions for the cell.
Define the phospholipid bilayer?
The phospholipid bilayer is embedded protein.
What is the Mitochondria?
Mitochondriasare tiny organelles that transfers energy from organic molecules to adenosine triphosphate (ATP).
Define what the microtubles are?
Microtubules are hollow tubes made of protein.
What is the cell theory?
Three observations that were form a basic theory about cellular nature of life
What is a Prokaryote cell?
A organism(s) that lack a membrane-bound nucleus and membrane-bound organelles.
What are chromosomes?
Are structures in the nucleus made of DNA and protein.
What is the endoplasmic reticulum?
The endoplasmic reticulum is a system of membranous tubes and sacs called cisternae, also know as ER.
What are microfilaments?
They are finer than microtubules and are long threads of the bead like protein actin and are linked end to end and wrapped around each other like two strands of rope.
What is the plasma membrane in a cell?
The cells outer boundary that covers a cell’s surface and acts as a barrier between the inside and the outside of a cell.
What is a Eukaryote cell?
A organism that is made up of one or more cells that have a nucleus and membrane-bound organelles.
What is the nuclear envelope?
A double membrane that is made up of two phospholipid bilayers.
What is the Golgi apparatus?
The Golgi apparatus is the another system of flattened, membranous sacs.
What is Cilia?
A hairlike structure that extends from the surface of the cell and is where they assit’s in movement.
What is cytoplasm and cytosol?
Cytoplasm is the region of the cell that is within the oaks a membrane ans includes fluid, cytoskeleton, and all of the organelles except the nucleus. A Cytosol is the part of the cytoplasm that includes molecules ans small particles, like ribosomes, but does not have a membrane-bound organelles.
Define what a tissue is?
A group of similar cells that carry out a specific function.
What is a nucleolus?
A site where DNA is concentrated when it is the process of making ribosomal RNA.
What are lysosomes?
Lysosomes are vesicles that bud form the Golgi apparatus and that contain digestive enzymes.
What is flagella?
A hairlike structure that extends form the surface of the cell and is where they assist in movement
What is the nucleus?
The membrane-bound structure
What is an organ and an organ system?
An organ is groups of tissues that perform a particular job in an organism. An organ system is a group of organs that accomplish related tasks.
What are ribosomes?
They are organelles made of protein and RNA that have direct protein synthesis in the cytoplasm.
What is the cytoskeleton?
A network or thin tubes and filaments that crisscrosses the cytosol.
What are Centrioles?
Are two short splinters of microtubules at right angles to each other and share situated int he cytoplasm near the nuclear envelope.