
study methods for tactile learners
... out of plasticine or playdoh or other modelling material. Make labels and stick them on toothpicks. Test your knowledge of the names and shapes of the cellular organelles by repeatedly placing the label toothpicks in the correct organelle. Make a second set of toothpick labels, but this time put a d ...
... out of plasticine or playdoh or other modelling material. Make labels and stick them on toothpicks. Test your knowledge of the names and shapes of the cellular organelles by repeatedly placing the label toothpicks in the correct organelle. Make a second set of toothpick labels, but this time put a d ...
PROJECT PROPOSAL for applicants for Ph.D. fellowships
... In the last few years our research was focused on the role of phosphatidylglycerol (PG) in cellular processes of cyanobacteria. We have demonstrated by characterization of PGdeficient cyanobacterial mutant strains that this phospholipid has important roles in the structure and function of photosynth ...
... In the last few years our research was focused on the role of phosphatidylglycerol (PG) in cellular processes of cyanobacteria. We have demonstrated by characterization of PGdeficient cyanobacterial mutant strains that this phospholipid has important roles in the structure and function of photosynth ...
Unravelling the molecular pathways of Plasmodium falciparum programmed cell death: identification of novel therapeutic targets.
... exhibits multiple cell death activation pathways of which unique molecular regulators are potential candidates for intervention strategies. Preliminary studies in our laboratory have suggested that the antimalarial chloroquine and mammalian apoptosis inducer staurosporine induce apoptosis-like featu ...
... exhibits multiple cell death activation pathways of which unique molecular regulators are potential candidates for intervention strategies. Preliminary studies in our laboratory have suggested that the antimalarial chloroquine and mammalian apoptosis inducer staurosporine induce apoptosis-like featu ...
42A Closer Look - AMA-Science
... a. Why is the nucleus an important part of most cells? b. What type of organism does not contain a nucleus? Most cells have other tiny structures that help them do many jobs. These structures are called organelles, or “little organs.” They are often surrounded by their own special membranes. Some ...
... a. Why is the nucleus an important part of most cells? b. What type of organism does not contain a nucleus? Most cells have other tiny structures that help them do many jobs. These structures are called organelles, or “little organs.” They are often surrounded by their own special membranes. Some ...
Cell Membrane and Transport
... fluids and nutrients in and out through the semi-permeable membrane. They can move these materials by either passive or active transport mechanisms to maintain homeostasis. Cell Membrane The main purpose of the cell membrane is to regulate the movement of materials into and out of the cell. The cell ...
... fluids and nutrients in and out through the semi-permeable membrane. They can move these materials by either passive or active transport mechanisms to maintain homeostasis. Cell Membrane The main purpose of the cell membrane is to regulate the movement of materials into and out of the cell. The cell ...
plant and animal cell remedation
... surrounds the cell membrane; helps to protect and support the cell; materials such as water and oxygen can move through easily located just within the cell wall; controls what substance come into and out of a cell; needed materials are allowed into the cell and waste products are removed the cell’s ...
... surrounds the cell membrane; helps to protect and support the cell; materials such as water and oxygen can move through easily located just within the cell wall; controls what substance come into and out of a cell; needed materials are allowed into the cell and waste products are removed the cell’s ...
General Biology Chapter 4 Cellular Transport
... As a result of diffusion, the concentration of many types of substances eventually become balanced on both sides of a membrane. Dispersal of ink or sugar in a beaker of water is an example of diffusion. Cell does not expend energy (no energy used) Substances always flow from an are of high concentra ...
... As a result of diffusion, the concentration of many types of substances eventually become balanced on both sides of a membrane. Dispersal of ink or sugar in a beaker of water is an example of diffusion. Cell does not expend energy (no energy used) Substances always flow from an are of high concentra ...
Prokaryotes
... Prokaryotes are generally single celled organisms, although some occur as aggregates, colonies, or simple multi-cellular forms. The three most common prokaryotic shapes are spherical (cocci) , rod shaped (bacilli), and helical forms. Nearly all prokaryotes have external cell walls, which protect and ...
... Prokaryotes are generally single celled organisms, although some occur as aggregates, colonies, or simple multi-cellular forms. The three most common prokaryotic shapes are spherical (cocci) , rod shaped (bacilli), and helical forms. Nearly all prokaryotes have external cell walls, which protect and ...
Cells, Mitosis-Meiosis, Photosynthesis
... of the cell divides. During mitosis, the nuclear membrane breaks down and later reforms. The chromosomes are also sorted and separated to ensure that each daughter cell receives a complete set of chromosomes. • The second major step is cytokinesis. As in prokaryotic cells, during this step the cytop ...
... of the cell divides. During mitosis, the nuclear membrane breaks down and later reforms. The chromosomes are also sorted and separated to ensure that each daughter cell receives a complete set of chromosomes. • The second major step is cytokinesis. As in prokaryotic cells, during this step the cytop ...
AP Biology Chapter Questions – Campbell 7th Edition
... 1. Explain in general terms how traits are transmitted from parents to offspring. 2. Distinguish between asexual and sexual reproduction. The Role of Meiosis in Sexual Life Cycles 3. Distinguish between the following pairs of terms: a. somatic cell and gamete b. autosome and sex chromosome 4. Explai ...
... 1. Explain in general terms how traits are transmitted from parents to offspring. 2. Distinguish between asexual and sexual reproduction. The Role of Meiosis in Sexual Life Cycles 3. Distinguish between the following pairs of terms: a. somatic cell and gamete b. autosome and sex chromosome 4. Explai ...
Plasma Membrane
... Endocytosis • Endocytosis - "to enter the cell" • Phagocytosis - large particles - membrane "reaches out" - phago = eat" • Pinocytosis - solutes in fluids - membrane folds in to form a pouch known as a vesicle. - pino = ...
... Endocytosis • Endocytosis - "to enter the cell" • Phagocytosis - large particles - membrane "reaches out" - phago = eat" • Pinocytosis - solutes in fluids - membrane folds in to form a pouch known as a vesicle. - pino = ...
Measles Virus Matrix Protein Inhibits Host Cell Transcription
... analysis of nuclear and cytoplasmic extracts from cells expressing GFP-MeVM consistent with the CLSM data, with 45% of intracellular M being present in the nucleus (Fig 1B); as compared to GFP alone and tubulin which were mostly cytoplasmic (32% nuclear). To determine if the nuclear localization of ...
... analysis of nuclear and cytoplasmic extracts from cells expressing GFP-MeVM consistent with the CLSM data, with 45% of intracellular M being present in the nucleus (Fig 1B); as compared to GFP alone and tubulin which were mostly cytoplasmic (32% nuclear). To determine if the nuclear localization of ...
Chapter 3 Extended Chapter Outline
... cytoplasm is the intracellular face, and the side that faces outward is the extracellular face. (p. 91– 95) (Fig. 3.6a) 1. The plasma membrane consists of an oily film of lipids with diverse embedded proteins. (Fig. 3.6b) a. 75% of the lipids are phospholipids arranged in a bilayer, with their phosp ...
... cytoplasm is the intracellular face, and the side that faces outward is the extracellular face. (p. 91– 95) (Fig. 3.6a) 1. The plasma membrane consists of an oily film of lipids with diverse embedded proteins. (Fig. 3.6b) a. 75% of the lipids are phospholipids arranged in a bilayer, with their phosp ...
Cell Trans Station Lab Answers
... 4. What will happen to the cell inside this solution? The cell will increase in size ...
... 4. What will happen to the cell inside this solution? The cell will increase in size ...
Movement of Materials Through the Plasma Membrane
... People in a house need to know when deliveries or friends arrive. ...
... People in a house need to know when deliveries or friends arrive. ...
AP Biology Biology is the only subject in which multiplication is the
... epithelial cells, blood cells, stem cells AP Biology ...
... epithelial cells, blood cells, stem cells AP Biology ...
PCDU Seminar Myriam Murillo 11 November 2015
... Binding of heterotetrameric adaptor protein 2 (AP-2) complex/clathrin to the PM. ...
... Binding of heterotetrameric adaptor protein 2 (AP-2) complex/clathrin to the PM. ...
Movement through the cell membrane Power Point
... A. Channel proteins - a protein that allows a particular molecule or ion to freely cross the membrane as it enters or leaves the cell. B. Carrier proteins (Transport)- a protein that selectively interacts with a specific molecule or ion so that it can cross the cell membrane to enter or exit the cel ...
... A. Channel proteins - a protein that allows a particular molecule or ion to freely cross the membrane as it enters or leaves the cell. B. Carrier proteins (Transport)- a protein that selectively interacts with a specific molecule or ion so that it can cross the cell membrane to enter or exit the cel ...
Cell nucleus

In cell biology, the nucleus (pl. nuclei; from Latin nucleus or nuculeus, meaning kernel) is a membrane-enclosed organelle found in eukaryotic cells. Eukaryotes usually have a single nucleus, but a few cell types have no nuclei, and a few others have many.Cell nuclei contain most of the cell's genetic material, organized as multiple long linear DNA molecules in complex with a large variety of proteins, such as histones, to form chromosomes. The genes within these chromosomes are the cell's nuclear genome. The function of the nucleus is to maintain the integrity of these genes and to control the activities of the cell by regulating gene expression—the nucleus is, therefore, the control center of the cell. The main structures making up the nucleus are the nuclear envelope, a double membrane that encloses the entire organelle and isolates its contents from the cellular cytoplasm, and the nucleoskeleton (which includes nuclear lamina), a network within the nucleus that adds mechanical support, much like the cytoskeleton, which supports the cell as a whole.Because the nuclear membrane is impermeable to large molecules, nuclear pores are required that regulate nuclear transport of molecules across the envelope. The pores cross both nuclear membranes, providing a channel through which larger molecules must be actively transported by carrier proteins while allowing free movement of small molecules and ions. Movement of large molecules such as proteins and RNA through the pores is required for both gene expression and the maintenance of chromosomes. The interior of the nucleus does not contain any membrane-bound sub compartments, its contents are not uniform, and a number of sub-nuclear bodies exist, made up of unique proteins, RNA molecules, and particular parts of the chromosomes. The best-known of these is the nucleolus, which is mainly involved in the assembly of ribosomes. After being produced in the nucleolus, ribosomes are exported to the cytoplasm where they translate mRNA.