PPT-Chapter 4 - CELLS Cell Lab

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. 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.. 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? . Lesson 4: Describing Cells. Classify specialised cells as animal cells or plant cells.. Describe different specialised animal cells and plant cells.. Explain the structure and function of specialised cells using models.. 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 . Cellular Basis of Life. Robert Hooke . – late 1600s – observed plant cells. 1830s . Schleiden. & Schwann . – concluded all living things are composed of cells. Rudolf Virchow . – found – all cells come from preexisting cells. 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 . 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. AP Biology Exam Review. Apoptosis = cell suicide. Cell is dismantled and digested. Triggered by signals that activate cascade of . “. suicide. ”. proteins (caspase). Protect neighboring cells from damage. Light microscopes are commonly used in classrooms. Living cells can be examined. The downfall is that they do not magnify a tremendous amount. . 2. Magnification. . is the ratio of an object’s image to its real size. A light microscope can magnify effectively to about 1,000 times the real size of a specimen. . 1. a. Review Identify two reasons why a cell’s growth is limited.. DNA can’t keep up with growth. Plasma membrane doesn’t grow at same rate of volume and cannot provide enough food for cell or get enough waste out of cell.. Cell Structure and Function Chapter 2 Lesson 1: Cells and Life Understanding Cells People didn’t always know about cells Too small to be seen without proper tools Robert Hooke (English Scientist) 300 years ago he built a microscope Division. Key Definitions. Chromosome: . A strand of DNA. DNA (deoxyribonucleic acid): . Carries genetic information. Gene: . A short section of DNA found on a chromosome that codes for a particular characteristic..