PPT-B cell

development Tony DeFranco 10 2914 5 Themes in B cell development Ig class switch and somatic mutation Theme 1 Checkpoints in B cell development feedback from Ig gene rearrangements. Binping Xiao. Aug 20 2015. Cavity overview. No coupling slots between cells.. Beam pipe aperture: cell . to . cell & end cell 1.875”. Dimensions (cavity radius, FPC slot height, nose cones . etc. Lecture 4 . Assays . Based . on Cell Proliferation. Cell counts. can be used to determine the effect of various compounds on cell proliferation, but at least in the early stages of testing, a complete growth curve is required. . Plasma Membrane. Recall: what is a plasma membrane?. A cell’s outer boundary. *Found in both plant & animal cells. In a plant cell. : lies beneath the cell wall. In animal cells. : the outer boundary (made of cholesterol). Why do cells need to divide?. Growth and development. You started as 1 cell and now you’re made up of roughly 40 TRILLION cells. Repair and regeneration of tissue. Reproduction. What happens when cells divide? . 1. . Cell . Theory. All. living things are made of . cells.. Cells are the basic unit of . structure & function.. Cells. come from . pre-existing . cells.. Scientists . Who Formed the Cell Theory. Means “to move the cell”. Approximately 5% of cell’s life. Process differs in . Heterotrophs. (Animals) . Autotrophs. (Plants) due to presence of cell wall. HETEROTROPHS. AUTOTROPHS. Cell. membrane . Surface markers . Structure . . Variable, integral or glycolipids . In plasma membrane.. Function . Identify the cell . Example . MHC complexes, blood groups, antibodies . Surface markers. Structure: Variable, integral proteins or glycolipids in plasma membrane. Function: Identify the cell. Example: MHC complexes, blood groups, antibodies. Septate junctions/tight junctions. Cell membrane is like the doors on a car. They regulate what goes in/out.. The cell wall in a plant cell is like the frame on a car. The frame supports the car as the cell wall supports the plant.. The endoplasmic reticulum is like the fuel lines on a car. It lets a passage way for fuel to flow like proteins do in the endoplasmic reticulum . Personal cell phones may only be carried in the consumer’s home in case of emergency and/or for Family Care . to . call the employee due to schedule changes. .. While at the consumer’s residence, Family . Antigen fits with. this B cell. Different B cell clones. Making antibodies. Many plasma cells. Some memory cells. When specific B cells are activated, they multiply. Some cells become . memory cells. Unit Objectives. 1: Explain the structures of plant cells and important cell processes.. a. Describe the structures of a typical plant cell and their functions.. b. Compare and contrast mitosis and meiosis.. Focus on Integrins. John Cooper. Dept of Biochemistry & Molecular Biophysics. www.cooperlab.wustl.edu. jacooper@wustl.edu. November 19, 2019. Goals of lecture. Context: Cell adhesion and ECM molecules. Chapters 12, 13, 16, 17. Limits to Cell Growth. The larger a cell becomes, the more demands a cell places on its DNA. If extra copies of DNA are not made, an “information crisis” would occur. The cell also has more trouble moving nutrients and wastes across the cell membrane.