Cell And Its Organells Flashcards
(30 cards)
Classification of cell.
Unicellular
*single Cell (Bacteria)
Multicellular
* plants and animal.
Size of Cell.
1) Smallest cell is Bacterium also known as Mycoplasma measure 0.0001 mm dia.
2) Largest cells are the nerve cells that runs down the giraffe’s neck exceeds to 3m in length.
The cell was discovered by?
Robert Hooke (1665)
How many number of cells in a man?
100 trillion
10^14
Bacteria was discovered by?
A.V Leewanhoek, 1674
Who gave “Cell Theory”?
Theodar Schwaan
Matthias Shleiden
1839
Who discovered Nucleus Cell?
Robert Brown, 1831
What are the categories of cells?
1) Prokaryotes
2) Eukaryotes
Prokaryotes?
- Nuclear lacked membrane, Surrounded nucleus cell
* First evolving types, e.g BACTERIA
Eukaryotes?
- ) Membrane-Bound Nucleus, Membranous organelles.
* ) in Animals, Plants, Fungi, protozoa.
What a cell structure consist?
- Plasma Membrane
- Protoplasm
- Cytoplasm
- Genetic Material
Plasma Membrane?
- thin layer surrounding the living cells
- Separates cell from surroundings, Protecting from chemical physical envoirement
- and regulates diff molecules in and out of a cell, Not everything allowed.
Protoplasm?
- Everything which is inside of cell membrane,
- manufacture substances like Nucleus, Mitochondria, cytoplasm etc
- Known as physical Basis Of life.
Cytoplasm?
- Cell substance excluding nucleus.
- Protoplasm - Nucleus = Cytoplasm
- contain Cytosol, Organelle, Vesicles, cytoskeleton.
- Cytoplasm - organelles = Cytosol
Genetic Material?
- DNA
* RNA
Cell Organelles?
01) Endoplasmic Reticulum
02) Golgi Bodies
03) Ribosomes
04) Lysosomes
05) Peroxisomes
06) Centrosome & Centriole
07) Mitochondria
08) Nucleus
09) Vacuoles
10) Cell Wall
11) Plasticids
Endoplasmic Reticulum (ER)?
- A complex network in which tubes attached to Nucleus.
Types of ER?
1) Smooth ER:
* tube Attached to the smooth surface and
* releases oils, Lipids,Cholesterol and steroids.
2) Rough ER:
* tube attached to ribosome,
* Involved in protein synthesis.
Golgi Apparatus/ Golgi Bodies?
- Longed, Tiny, Flattened sac stacked parallel with each other along with Vacuoles and Vesicles.
- protein is packed inside the cell before sending to its destination
- Cell products packed and stored in Golgi Complex.
Ribosomes?
- Spherical granular particles freely occurred in cytoplasm.
- composed of RNA and Proteins.
- Func: Provide surface for Protein Synthesis known as translation.
Lysosomes?
- Tiny, Spherical, sac-like structure, disburse all over in cytoplasm.
- Digestion is main function.
- Contain destructive enzymes capable to digest organic Material, organelle cells and damaged cells.
- known as “Digestive & Suicide Bags”.
Peroxisomes?
- same as LYSOSOMES
- Contain powerful oxidative enzymes.
- func: Eradication of toxic substances.
- known for digesting Fatty Acids.
- vital role in cholesterol synthesis and amino acid digestion.
- Founds in Kidney cell and liver.
Mitochondria?
- Spherical organelles distributed in cytoplasm.
- bound by a double membrane.
- site for cellular respiraton.
- releases stored energy (ATP) for special purposes.
- termed as “Power House” of the cell.
ATP?
Adenosine Triphosphate
