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Flashcards in Cells Deck (16):

Name the structures parts of the Cell

- Nucleus
- Ribosomes
- Cytoplasm
- Plasma Membrane
- Mitochondrion
- Lysomes
- Rough and Smooth Endoplasmic Reticulum


3 Main structures of the cell

- Plasma Membrane
- Cytoplasm
- Nucleus


Cytoplasm is broke down further into

- Microvilli
- Ribosomes
- Lysosomes
- Mitochrondria


What is the function of Microvilli

- Microvilli (singular: microvillus) are microscopic cellular membrane protrusions that increase the surface area for diffusion and minimize any increase in volume, and are involved in a wide variety of functions, including absorption, secretion, cellular adhesion, and mechanotransduction.


What is the function of Ribosomes

- Function of Ribosomes. Ribosomes are a cell structure that makes protein. Protein is needed for many cell functions such as repairing damage or directing chemical processes. Ribosomes can be found floating within the cytoplasm or attached to the endoplasmic reticulum.


What is the function of Lysosomes

- Inside a cell, numerous organelles function to remove wastes. One of the key organelles involved in digestion and waste removal is the lysosome. Lysosomes are organelles that contain digestive enzymes. They digest excess or worn out organelles, food particles, and engulfed viruses or bacteria.


What is the function of Mitochrondia

- The most prominent roles of mitochondria are to produce the energy currency of the cell, ATP (i.e., phosphorylation of ADP), through respiration, and to regulate cellular metabolism, also through processing sugars, fats and proteins


What is the function of the cell membrane

- The cell membrane (plasma membrane) is a thin semi-permeable membrane that surrounds the cytoplasm of a cell. Its function is to protect the integrity of the interior of the cell by allowing certain substances into the cell, while keeping other substances out. It also serves as a base of attachment for the cytoskeleton in some organisms and the cell wall in others. Thus the cell membrane also serves to help support the cell and help maintain its shape. Another function of the membrane is to regulate cell growth through the balance of endocytosis and exocytosis.


The passive process can be further broke down into 3 groups

- Simple Diffusion
- Osmosis
- Facilitated Diffusion


Define Diffusion

They move from a region where they are in high concentration to a region where they are in low concentration.


Define Osmosis

a process by which molecules of a solvent tend to pass through a semipermeable membrane from a less concentrated solution into a more concentrated one.


Define Facilitated Diffusion

Facilitated diffusion is the process of spontaneous passive transport of molecules or ions across a cell's membrane via specific transmembrane integral proteins.


Define and state what Hypertonic, Hypotonic and isotonic is

- denoting a solution having less osmotic pressure than one with which it is compared. (hypotonic)
- More osmotic pressure then one with which it is compared (hypertonic)
- a solution in which body cells can be bathed without net flow of water across the semipermeable cell membrane; also, denoting a solution having the same tonicity as another solution with which it is compared.


What are the two processes of cell division

- Mitosis
- Meiosis


What is mitosis

The division of cells in order to replicate, where the cell replicates its DNA and then organises itself in order to divide


What is Meiosis

Cell division in order to allow reproduction, with the formation of a gamete