The Cell Flashcards
Everything lol
What do microtubules in the cell do?
Serve as lines/tracks for vesicles
Maker of the first compound microscope
Robert Hooke
First person to view living cells under a microscope
Anton von Leeuwenhoek
Person who demonstrated that diseased cells could come from normal cells
Rudolph Virchow
What are the 4 tenets of Cell Theory?
- All living things are made up of cells
- All Living things are made of cells
- All cells come from pre-existing cells
- Cells carry genetic information in the form of DNA
Aqueous Component of cytoplasm
Cytosol
The control center of the cell and contains all genetic material (Eukaryotes)
Nucleus
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Section of the cell where ribosomes are made
Nucleolus
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Organizing proteins in genetic material/ chromatin
Histones
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Power Plant of the cell, site of Cellular Respiration
Mitochondria
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Barrier between cytosol and inner environment of mitochondria
Outer Membrane of Mitchondria
Contains molecules and enzymes necessary for the Electron Transport Chain (ETC)
Inner Membrane of Mitchondria
Numerous in-foldings of Inner Membrane of Mitochondria
Cristae
Site of ATP Synthase; the space inside the inner membrane
Mitochondrial Matrix
Transmission of genetic material independent of the nucleus
Cytoplasmic/Extranuclear Inheritance
Theory that organelles were formed by the engulfing of one prokaryote by another and a symbiotic relationship forming between them
Serial Endosymbiosis
What is Mitochondrial Apoptosis?
Mitochondria releases enzymes from ETC that kills the cell
This organelle contains hydrolytic enzymes
Lysosome
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What is Lysosomal Apoptosis?
Also called Autolysis–Lysosome membrane sequesters hydrolytic enzymes but can also release them causing direct degradation of cell components
Interconnected with nucleus, this organelle has ribosomes and permits the translation of proteins in its lumen
Rough Endoplasmic Reticulum
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Also interconnected with nucleus, this organelle lacks ribosomes and is involved with lipid synthesis, detoxification and transporting proteins to the Golgi Apparatus
Smooth Endoplasmic Reticulum
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Stacked membrane bound sacs, cellular products from RER are modified and shipped to specific parts of the cell. Receives and ships components through vesicles.
Golgi Apparatus
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This organelle contains hydrogen peroxide and breaks down long fatty acid chains through Beta-Oxidation. Participates in phospholipid production and pentose phosphate pathway.
Peroxisome
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The group of structures in charge of maintaining cell shape/ support and provide conduits for the transport of materials throughout the cell
Cytoskeleton
Division of materials between daughter cells
Cytokinesis
This sub-group of the cytoskeleton is made up of actin and specializes in generating movement for the cell and forming the cleavage furrow/cytokinesis
Microfilament
Projections from the cell involved in movement of materials along the surface
Cilia
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Involved in movement of the cell itself
Flagella
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This sub-group of the cytoskeleton is made up of tubulin proteins and provide conduits for vesicles and make up cilia and flagella
Microtubules
What is the 9+2 structure?
Basic structure of cilia and flagella. Consists of 9 microtubules forming a ring around 2 in the center
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Organizing structures found in centrosomes where it organizes microtubules for the mitotic spindle
Centrioles
This type of tissue covers the body, lines cavities and protects against pathogens and dessication
Epithelial Tissue
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Important aspect of epithelial tissue where cells bind to in order to be a cohesive unit
Basal Membrane
What are parenchyma?
Parts of an organ in charge of the actual function of it
Classification of Epithelia– What is Simple Epithelia structure?
One layer of cells
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Classification of Epithelia– What is Pseudostratified Epithelia structure?
One layer with differing cell heights
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Classification of Epithelia– What is Stratified Epithelia structure?
Multiple layers of cells
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Epithelia Cell Shape– What is squamous?
Scale-like; flat
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Epithelia Cell Shape– What is Cuboidal?
Cube-like
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Epithelial Cell Shape– What is Columnar?
Long and thin; column-like
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Type of tissue that provides support for the body and framework of epithelial cells? These type of cells produce extracellular matrix. Examples: Bone, cartilage, tendons, ligaments, adipose tissue, and blood.
Connective Tissue
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Single-celled organisms visually similar to bacteria but genetically and metabolically similar to Eukaryotes
Archaea
An organism that uses sunlight to generate energy
Photosynthetic Organism
An organism that uses inorganic compounds to generate energy
Chemosynthetic Organism
Prokaryotic structure similar to cilia
Fimbriae
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Relationship where both organisms benefit
Mutualistic Symbiotic
Spherical bacteria shape
Cocci
Rod-Shaped bacteria
Bacilli
Spiral-Shaped bacteria
Spirilli
Organism that needs O2 for metabolic processes
Obligate Aerobe
Organism that needs a lack of O2 for metabolic processes
Ex. Use fermentation or a different electron acceptor for Cellular Respiration
Obligate Anaerobe
Organisms that can switch between obligate An/Aerobe
Facultative Anaerobe
Organisms that are unable to use oxygen but are not harmed by it
Aerotolerant Anerobe
Polymeric substance made of amino acids and sugars; makes up Bacterial Cell Wall
Peptidoglycan
Space between the cell wall and cell membrane
Periplasmic Space
Gram-Negative bacterial substance that makes up their outer membrane
Lipopolysaccharide
Prokaryotic flagella are composed of….
- Filament
- Basal Body
- Hook
Bacterial process of acquiring foreign DNA from the environment and integrating it into the genome
Transformation
Known as “Bacterial form of mating”; involves the creation of a bridge of pili and the transfer of sex factors
Conjugation
A virus that carries genetic material from one host to another
Vector
The mixing of genetic material through vectors transferring from one host to another
Transduction
Viruses that infect bacteria
Bacteriophages
Genetic elements capable of inserting and removing themselves from the genome
Transposons
Viral Progeny
Virion
Type of single-stranded RNA virus whose genome can be directly translated into proteins via ribosomes like mRNA
Positive Sense Virus
Type of single-stranded RNA virus that requires synthesis of a complementary RNA strand and its use as a template
Negative Sense Virus
RNA viruses that integrate a copy of their DNA genome into a host cell in order to replicate
Retroviruses
Enzyme that synthesized DNA from single-stranded RNA
Reverse Transcriptase
Virion mode of release where the virion fuses with the plasma membrane of the host cell and bud off
Extrusion
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Simultaneous infection
Superinfection
Infectious proteins that cause disease by triggering mis-foldings of other proteins
Prions
Small pathogens with small circular single-stranded RNA that typically infect plants; they bind to RNA sequences and can “Silence” genes
Viroids