KTQ every friday!
546097231 | Light Microscope(LM) | visible light is passed through a specimen, such as a microorganism or a thin slice of animal or plant tissue, and then through glass lenses | |
546097232 | Micrograph | a photograph taken through a microscope | |
546097233 | Cell Theory | states that all living things are composed of cells and that all cells come from other cells | |
546097234 | Electron Microscope (EM) | a microscope that uses magnets to focus an electron beam through, or onto the surface of, a specimen. an electron microscope achieves a hundredfold greater resolution than a light microscope | |
546097235 | Scanning Electron Microscope (SEM) | a microscope that uses an electron beam to study the fine details of cell surfaces or other specimens | |
546097236 | Transmission Electron Microscope(TEM) | a microscope that uses an electron beam to study the internal structure of thinly sectioned specimens | |
546097237 | Prokaryotic Cells | a type of cell lacking a membrane- enclosed nucleus and other membrane- enclosed organelles; found only in the domains Bacteria and Archaea | |
546097238 | Eukaryotic Cells | a type of cell that has a membrane enclosed nucleus and other- membrane- enclosed organelles. All organisms except bacteria and archaea are composed of eukaryotic cells | |
546097239 | Ribosomes | cellular structure consisting of proteins and RNA organized into two subunits functioning at the sire of protien synthesis in the cytoplasm.Constructed in the nucleolus. | |
546097240 | Cytoplasm | Micro-filaments that fill the entire region of the cell between the nucleus and plasma membrane. | |
546097241 | Nucleoid | a dense region of DNA in a prokaryotic cell | |
546097242 | Flagella | long appendages that propels protists through the water and moves fluid across the surface of many tissue cells in animals | |
546097243 | Organelles | a membrane- enclosed structure with a specialized function within a cell | |
546097244 | Cellular Metabolism | all the chemical activities of a cell | |
546097245 | Nucleus | an atom's central core, containing protons and neutrons. the genetic control center of a eukaryotic cell. | |
546097247 | Nuclear Envelope | a double membrane that encloses the nucleus, perforated with pores that regulate traffic with the cytoplasm | |
546097248 | Nucleolus | a structure within the nucleus where ribosomal RNA is made and assemebled with proteins imported from the cytoplasm to make ribosomal subunits | |
546097249 | Endomembrane System | a network of membranes inside and around a eukaryotic cell, related either through direct physical contact or by the transfer of membranous vesicles, nuclear envelope, endoplasmic reticulum, golgi apparatus, lysosomes and vacuoles | |
546097250 | Vesicles | a sac made of membrane in the cytoplasm of a eukaryotic cell | |
546097251 | Endoplasmic Reticulum(ER) | an extensive membranous network in a eukaryotic cell, continuous with the outer nuclear membrane and composed of ribosome- studded(rough) and ribosome- free(smooth) regions. | |
546097252 | Smooth Endoplasmic Reticulum | that portion of the endoplasmic reticulum that lacks ribosomes | |
546097253 | Rough Endoplasmic Reticulum | that portion of the endoplasmic reticulum with ribosomes attached that make membrane proteins and secretory proteins | |
546097254 | Glycoprotein | a protein with one of more short chains of sugars attached to it | |
546097255 | Transport Vesicle | a small membranous sac in a eukaryotic cell's cytoplasm carrying molecules produced by the cell. The vesicle buds from the endoplasmic reticulum or Golgi and eventually fuses with another organelle or the plasma membrane, releasing its contents | |
546097256 | Golgi Apparatus | an organelle in eukaryotic cells consisting of stacks of membranous sacs that modify, store, and ship products of the endoplasmic reticulum | |
546097257 | Lysosome | a digestive organelle in eukaryotic cells ; contains hydrolytic enzymes that digest engulfed food or damaged organelles | |
546097258 | Vacuoles | a membrane- enclosed sac that is part of the endomembrane system of a eukaryotic cell and has diverse funcitons | |
546097259 | Central Vacuole | in a plant cell, a large membranous sac with diverse roles in growth and the storage of chemicals and wastes | |
546097260 | Peroxisomes | ..., membranous sacs containing enzymes used to break down hydrogen peroxide | |
546097261 | Mitochondria | an organelle in eukaryotic cells where cellular respiration occurs. Enclosed by two membranes, it is where most of the cell's ATP is made | |
546097262 | Mitochondrial Matrix | the compartment of the mitochondrion enclosed by the inner membrane and containing enxymes and substrates for the citric acid cycle | |
546097264 | Chloroplasts | organelle found in plants and photosynthetic protists,=. Absorbs sunlight and uses it to power the synthesis of organic food molecules. | |
546097275 | Extracellular Matrix (ECM) | the meshwork surrounding animal cells; consists of glycoproteins and polysaccharides | |
546097277 | Cell Wall | a protective layer external to the plasma membrane in plant cells, bacteria, fungi, and some protists; protects the cell and helps maintain its shape | |
547032058 | Phospholipids | make up the membranes of the cell. Have a hydrophilic head and a hydrophobic tail | |
547032059 | Phosphlipid bilayer | double layer of phospholipid molecules | |
547032060 | fluid mosaic | description of the membrane structure, depicting a cellular membrane as a mosaic of diverse protein molecules embedded in a fluid bilayer made of phospholipid molecules | |
547032061 | cell junction | structure that connects animal cells to one another in a tissue | |
547032062 | chromatin | the combination of DNA and proteins that make chromosomes | |
547032063 | chromosome | a gene-structure found in the nucleus of eukaryotic cells | |
547032065 | food vacuoles | tiny sac in eukaryotic cells that engulfs nutrients. | |
547032066 | stroma | thick fluid enclosed by the membrane of a chloroplast where sugars are made. | |
547032067 | grana | stack of hollow disks formed of thylakoid membrane in a chloroplast where light energy is trapped by chlorophyll and converted to chemical energy during photosynthesis. | |
547032068 | crista | fold of the inner membrane of the mitochondrion. When enzyme molecules are embedded it make ATP | |
547032069 | cytoskeleton | meshwork of fine fibers in the cytoplasm of a eukaryotic cell. | |
547032070 | cilia | short appendages that propel some protists through water and moves fluid across the surface of many tissue cells in animals | |
547554249 | capsules | sticky outer coating that some prokaryotic cells have that protection and the ability to stick to other surfaces. | |
547554250 | pili | short projections on prokaryotic cells that heko them stick to surfaces. | |
547554251 | how is the nucleoid area of a prokaryotic cell unlike the nucleus of the eukaryotic cell | The nucleoid is not membrane bound while the nucleus is. | |
547554252 | 3 structures in plant cells that are not in animal cells | cell wall, chloroplast, central vacuole | |
547554253 | 3 structures in animal cell that are not typically in plant cells | flagella, lysosomes, centrioles | |
547554254 | what is the function of ribosomes | protein synthesis | |
547554255 | what is the role of mRNA in making a protein | carries the genetic message of the DNA to the ribosomes where it is translated into a protein |