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Get up to 50% Off Sitewide! Code: SMR18 Ends: 6/25 Details

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FC: Wait........ | it does what?

1: i'm sorry, who? | ROBERTHOOKE! | when Robert first discovered the cell he described them as little tiny rooms

2: As you can see Prokaryotic cells are not quite as complex as Eukaryotic cells. The top right picture is a Prokaryotic cell. Prokaryotic meaning before nucleus. The bottom right picture is a Eukaryotic cell, meaning after nucleus. The large picture shows that Prokaryotic and Eukaryotic cells both contain plasma membrane, cytoplasm, DNA, and ribosomes, but only the Eukaryotic has a nucleus and only the Prokaryotic has a nucleoid region.

3: This is an animal cell. Animal cells contain Mitochondria, Microfillaments, Lysosomes, Chromotin, rough & smooth Endoplasmic Reticulum, Plasma Membrane, Microtubules, a Nucleolus, Golgi Complex, and a Nucleus. | This is a plant cell. A plant cell contains a Cell Membrane, Nuclear Pore, rough & smooth E.R., Nucleus, Mitochondrian, Lysosome, Cytoskeleton, Chloroplast, Golgi Body, Plastid, Vacuole, Cell Wall, Cytoplasm, and a Nucleolus. | This is a Bacteria Cell. A bacteria cell contains a Capsule, Cell Wall, Cytoplasm, Plasma Membrane, Ribosomes, DNA, and Bacterial Flagellum.

4: Diagrams From Previous Pages.

6: and what is it exactly that they do? | Mitochondria: provide the energy a cell needs to move, divide, produce secretory products, contract - in short, they are the power centers of the cell. Nucleus: a specialized, usually spherical mass of protoplasm encased in a double membrane, and found in most living eukaryotic cells, directing their growth, metabolism, and reproduction, and functioning in the transmission of genic characters. | structures?? organelles?? what? | DNA: deoxyribonucleic acid: an extremely long macromolecule that is the main component of chromosomes and is the material that transfers genetic characteristics in all life forms,

7: cells allow us to function(: | Chromosome: any of several threadlike bodies, consisting of chromatin, that carry the genes in a linear order: the human species has 23 pairs, designated 1 to 22 in order of decreasing size and X and Y for the female and male sex chromosomes respectively. | Cell Membrane: the semipermeable membrane enclosing the cytoplasm of a cell. | Cell Wall: (plant cells only) The cell wall provides and maintains the shape of these cells and serves as a protective barrier. Fluid collects in the plant cell vacuole and pushes out against the cell wall. This turgor pressure is responsible for the crispness of fresh vegetables. | Flagella: a long, lashlike appendage serving as an organ of locomotion in protozoa, sperm cells

8: continued\ huhh? | cilia: minute hairlike organelles, identical in structure to flagella, that line the surfaces of certain cells and beat in rhythmic waves, providing locomotion to ciliate protozoans and moving liquids along internal epithelial tissue in animals | chloroplasts: (plant cells only): are specialized organelles found in all higher plant cells. These organelles contain the plant cell's chlorophyll responsible for the plant's green color. | centrioles: (animal cells only): a ring of nine groups of fused microtubules. There are three microtubules in each group. Microtubules (and centrioles) are part of the cytoskeleton. In the complete animal cell centrosome, the two centrioles are arranged such that one is perpendicular to the other. | Endoplasmic Reticulum: a network of tubular membranes within the cytoplasm of the cell, occurring either with a smooth surface (smooth endoplasmic reticulum) or studded with ribosomes (rough endoplasmic reticulum), involved in the transport of materials.

9: vacuoles: a membrane-bound cavity within a cell, often containing a watery liquid or secretion: a minute cavity or vesicle in organic tissue. | cytoskeleton: a shifting lattice arrangement of structural and contractile components distributed throughout the cell cytoplasm, composed of microtubules, microfilaments, and larger filaments, functioning as a structural support and transport mechanism. | cytoplasm: the cell substance between the cell membrane and the nucleus, containing the cytosol, organelles, cytoskeleton, and various particles. | Lysosomes: contain hydrolytic enzymes necessary for intracellular digestion. | Golgi Apparatus: an organelle, consisting of layers of flattened sacs, that takes up and processes secretory and synthetic products from the endoplasmic reticulum and then either releases the finished products into various parts of the cell cytoplasm or secretes them to the outside of the cell. | Ribosomes: tiny, somewhat mitten-shaped organelle occurring in great numbers in the cell cytoplasm either freely, in small clusters, or attached to the outer surfaces of endoplasmic reticula, and functioning as the site of protein manufacture.

10: cells function? NO WAY! | So this is how a cell works: the cell wall/membrane works with the rest of the cell by not letting in certain particles. The nucleus works with the nucleolus by creating DNA used to make ribosomes, which are then transported to the rough Endoplasmic Reticulum then proteins are made. These proteins go to the Golgi Body. The Golgi Body packs them ready to be transported to the border of the cell.


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