Cell Ultrastructure 0.0 / 5 ? BiologyCellular processes and structureA2/A-levelWJEC Created by: charleyCreated on: 13-08-18 14:20 Endosymbiotic Theory Theory that mitochondria and chloroplasts are prokaryotic cells that were engulfed by eukaryotic cells 1 of 29 Eukaryotic Cells Cells that have membrane bound organelles. DNA is in chromosomes within the nucleus. 2 of 29 Prokaryotic Cells A single celled organism lacking membrane bound organelles 3 of 29 Tissue A group of cells with the same structure and function working together 4 of 29 Organs A group of tissues in a structural unit working together to perform a specific function 5 of 29 Organ system A group of organs working together with a particular function 6 of 29 Organism All the systems in the body working together, making an organism 7 of 29 Base membrane Made of collagen and protein. Epithelia sit on them. 8 of 29 Cuboidal Epithelium Cube shaped cells. Tissue is one cell thick. 9 of 29 Columnar Epithelium Elongated cells, may be ciliated. 10 of 29 Squamous Epithelium Flattened cells. 11 of 29 Skeletal muscle Voluntary. Attached to bones. Long bands of muscle. They tire. 12 of 29 Cardiac muscle Involuntary. Never tires. Contracts rhythmically. Myogenic. 13 of 29 Smooth muscle Involuntary. Contracts rhythmically. Spindle shaped. 14 of 29 Cell Wall Made of cellulose which provides strength. Permeable. 15 of 29 Plasmodesmata Strands of cytoplasm between cells, allowing communication 16 of 29 Vacuole Bound by the tonoplast. Supports soft plant tissue and contains cell sap. 17 of 29 Centrioles Two rings of microtubules forming hollow cylinders 18 of 29 Lysosomes Temporary vacuoles containing digestive enzymes 19 of 29 Golgi body Produces secretory enzymes, glycoproteins and lysosomes. Secretes carbohydrates. Transports and stores lipids. Packages and modifies proteins. 20 of 29 Ribosomes Made of rRNA and protein. Are the site of translation in protein synthesis 21 of 29 Rough ER Has ribosomes on the surface and transports the proteins made there 22 of 29 Smooth ER Is associated with the synthesis and transport of lipids 23 of 29 Chloroplasts Double membraned. Contains ribosomes and DNA. 24 of 29 Thylakoids Flattened sacs which stack to form granum within the chloroplast. Contains chlorophyll 25 of 29 Mitochondria Double membraned. Inner membrane folds to form cristae. Contains ribosomes and DNA. Produces ATP 26 of 29 Nucleus Bound by the nuclear envelope. Has pores to allow passage of mRNA and ribosomes 27 of 29 Nucleoplasm Contains chromatin 28 of 29 Nucleolus Site of formation of rRNA and ribosomes 29 of 29
Comments
No comments have yet been made