5. A) provide support for the overlying epithelial tissue B)The basal lamina secrete glycoproteins and the fibroblasts of the reticular lamina contains collagen proteins 6. The covering and lining epithelia may be layered as single, pseudostratified, or stratified. The three basic cell shapes of the covering and lining epithelia are squamous, cuboidal, and columnar. 7.
| | | D) | All living organisms are composed of one or more cells. | | | | | | Feedback: Cell theory states: all living things are made of cells; cells basic units of structure and organization; cells arise only from previously existing cells. Most prokaryotic cells do not have specialized internal structures. | | 2 CORRECT | | A ____ contains polar and nonpolar ends, forming the plasma membrane. | | | A) | microtubule | | | B) | transport protein | |
Some cells have more energy that others, your fat cells have lots more mitochondria because they store a lot of energy. Muscle cells have many mitochondria which allows them to respond quickly when needed. All living cells contain ribosomes, tiny organelles composed of 60% ribosomal RNA and 40% protein. ‘Ribosomes are mainly found bound to the endoplasmic reticulum and the nuclear envelope as well as freely scattered throughout the cytoplasm’ Davidson, Jan,2005. The ribosomes serve as the protein production for the cell, and are
| Nucleolus | The nucleolus is responsible for the cell organelles (e.g. lysosomes, ribosomes, etc.). | Cell membrane | The cell membrane keeps the cell together by containing the organelles within it. Cell membranes are selectively-permeable, allowing materials to move both into and outside of the cell. | Vesicle | Storage in and out of the cell.
Golgi apparatus Responsible for producing lysosomes. Packages proteins for delivery to other organelles. Smooth endoplasmic reticulum Has no attached ribosomes and is involved in the metabolism of lipids or fats. Smooth endoplasmic reticulum Has no attached ribosomes and is involved in the metabolism of lipids or fats. Cell Membrane This is the outside layer of the cell and its function is to protect the interior of the cell by determining what enters and exists.
Depending on if the cell is an animal cell or a plant cell. | | Cytoskeleton | Cytoskeleton has intercellular proteins that help the cell maintain its shape and with helps with movement. | The word skeleton in Cytoskeleton reminds me of the meaning. | K Key Idea | I Information | M Memory Clue | Ribosomes | Ribosomes are protein builders. | The word Ribosomes remind me of Ribs.
Can microtubules act as a good pharmaceutical target? Microtubules are known as tubuline polymers initiated in the cell cytoplasm of eukaryotic cells. They have a hollow centre surrounded by a cell wall made up of 13 tubuline molecules which are stacked up beside each other. Tubuline is a recognised as a globular protein and has two dissimilar subunits such as α-tubuline and β-tubuline. These dimers add on to the ends of a microtubule allowing the molecule to increase in size (Campbell & Reece, 2004).
They are rough and smooth bodies that are in the cytoplasm. There are many differences and similarities between a plant and animal cell. The cells of animals and plants have three basic structures. They both contain a cell membrane which holds all the fluids. The cells also have a nucleus called the control center.
Inside each cell, atoms make up molecules. Molecules in turn make up cell organelles and other cellular inclusions. Similar cells form tissues that then collaborate to create organs. Each organ has a distinct function that keeps living organisms alive. Another living property that living organisms possess is regulation.
In addition, all cells can maintain their boundaries, metabolize, digest nutrients, and dispose wastes. 3.Identify the following cell parts: Plasma membrane - external boundary of cell; regulates flow of materials into and out of the cell; site of cell signaling Lysosome - contains digestive enzymes of many varieties; "suicide sac' of the cell mitochondria - scattered throughout the cell; major site of ATP synthesis Microvilli - slender extensions of the plasma membrane that increase its surface area Inclusions - stored glycogen granules, crystals, pigments, and so on Golgi apparatus - membranous system consisting of flattened sacs and vesicles; packages protein for export Nucleus - control center of the cell; necessary for cell division and cell life Centrioles - two rod-shaped bodies near the nucleus; direct formation of the mitotic spindle Nucleolus - dense, darkly staining nuclear body; packaging site for ribosomes Microfilaments - contractile elements of the cytoskeleton Rough ER or endroplasmic reticulum - membranous system; involved in intracellular transport of proteins and synthesis of membrane lipids Ribosomes - attached to membrane systems or scattered in the