PPT-Chapter 6 Cell membrane and

Transport Past paper questions HUMAN BIOLOGY HIGHER SECTION A All questions in this section should be attempted Answers should be underlined with a ruler 2007 Turn over Page 1 2010. Cell membrane compared to a sieve/colander.. When would you use a colander?. What does a cell membrane and a colander have in common?. All cells are surrounded by a cell membrane. Cell membranes . keep things out and keep things in.. Compartmentation: Cells and Tissues. About this Chapter. Body compartments. Biological membranes. Intracellular compartments. Tissue types and characteristics. Tissue remodeling. Organs. Three Major Body Cavities. Cell theory. Cell organization and homeostasis. Studying cells – microscopy and fractionation. Eukaryotic vs. prokaryotic cells. Compartments in eukaryotic cells (cell regions, organelles). Cytoskeleton. By Becky . The Cell. Cytology. is the study of the structure and functions of cells.. The cell was first discovered by Robert Hooke while viewing a dried cork.. The cells have been researched for 175 years.. The Nucleus: the gene-containing control center of the cell.. The nucleus is bound by a double membrane called the . nuclear envelope. . . Inside the nucleus are one or more small, dark-staining, essentially round structures called . Chapter 6 Chemistry . Chapter 7.1/7.3 Cells. Chapter 6.2/7.2/8.1 Diffusion, Plasma Membrane, Cellular transport. 8.2/8.3 Cell Reproduction. Ch 9 Energy (Photosynthesis, Respiration). 7.1 Discovery of Cells- basic unit of life. Introduction. Robert Hooke examined slices of cork under a . . microscope . and decided to call the . ‘. pore-like. ’. . . structures . cells. .. Robert Hooke, through his observations, had discovered . A Tour of the Cell. Cell Theory. All living organisms are made of cells. Cells are the smallest unit of structure & function in living organisms. All cells come from other cells. Microscopes. 1665: Hooke sees cell walls . All organisms are made of cells. Cell structure is correlated to cellular function. All cells are related by their descent from earlier cells. The Fundamental Units of Life. to study cells. Though usually too small to be seen by the unaided eye, cells can be complex. Structures, Functions and Organelle Relationships. p.50-50 in textbook. Animal Cell. Plant Cell. Cell Membrane & Cell wall. The cell membrane (plasma membrane) creates a cell boundary and helps to regulate the transport of molecules in and out of the cell (in plant & animal cells). For each prepared slide . Draw each cell – remember to draw the field of view and label any structures you know. . Record the magnification of each. Make observations of the cells. Include items such as color, structures, size, etc….. What is the plasma membrane?. A flexible boundary between the cell and its environment which maintains . HOMEOSTASIS. within the cell. **Remember that . HOMEOSTASIS. is a state of balance/equilibrium within the cell.. Warm-Up. What do you know so far about the cell membrane?. What do you want to know about the cell membrane?. Cell Membrane Structure & Function. Phospholipid. Bi-layer . (hydrophilic heads, hydrophobic tails). AP Biology. Mrs. Gionta. SC9. The Microscopic World of Cells. Cells are marvels of complexity. Trillions of cell in human body. Many specialized types. Main tool for exploration--Microscope. Microscopes as Windows on the World of Cells.