BIOMG 1350 Week 1 Notes
BIOMG 1350 Week 1 Notes BIOMG 1350
Popular in Introductory Biology: Cell and Developmental Biology
Popular in Molecular Biology and Genetics
This 2 page Class Notes was uploaded by genehan on Saturday September 3, 2016. The Class Notes belongs to BIOMG 1350 at Cornell University taught by Garcia-Garcia, M; Huffaker, T in Fall 2015. Since its upload, it has received 5 views. For similar materials see Introductory Biology: Cell and Developmental Biology in Molecular Biology and Genetics at Cornell University.
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Date Created: 09/03/16
These notes represent a detailed interpretation of the professor’s lecture. They are not a transcript of the lecture. TakeNote is best used as a supplement to your own notes, not as a substitute. BIOMG 1350 Professor Bretscher & GarciaGarcia Spring 2016 Week 1: Lecture 1 of 1 Wednesday, Jan. 27, 2016 Lecture Keywords: Robert Hooke, Antonie van Leeuwenhook, Cell Theory, Louis Pasteur, Charles Darwin, unicellular organisms, multicellular organisms I. How to succeed in the class a. Bring printed lecture slides to class and add onto them throughout lecture b. Read the required readings c. Create questions to test your understanding whose answer is in the end of lecture summary d. Participate in active learning sections e. Go to office hours and study groups II. Start of Cell Biology a. Imagine we are cave people and we know nothing about biology i. You go outside and see trees, fish, birds, plants, but where did this amazingly diverse life come from? b. What to all living things have in common? i. They all utilize materials and energy, grow and develop, respond to their environment, reproduce and pass their traits to offspring, evolve and change slowly, but most importantly, all made of one or more cells. c. Cells were seen in the 17 century when the microscope was invented by British Robert Hooke. i. Hooke was looking at the dead plant cell walls but didn’t know what he was looking at. ii. Antonie van Leeuwenhook built over 200 microscopes and interpreted what he saw. 1. He was the first person to observe single living cells. III. Cells are the universal building blocks of living tissues a. Matthias Schleiden and Theodor Schwann came up with idea that every living thing is composed of cells. (Cell Theory 1838) b. At this time, people believed life was created spontaneously, but it wasn’t. IV. Louis Pasteur a. He made meat broth and heated it and animalcules grew. b. He put a stopper on the flask, heated it, and nothing grew. c. He made the Pasteur flask, heated it, and still nothing grew. d. This told him that all cells arise from pre existing cells. V. Charles Darwin – Theory of Evolution 1838 a. He looked at different finches on the Galapagos Island and thought that those that could eat the food on the island could survive. b. All species are derived form variants of earlier species by selection of the fittest. VI. All cells must therefore be related. All life has a common origin that started 3 billion years ago. a. All organisms use the same genetic code and DNA sequences are related. b. Organisms’ fundamental processes and basic chemistry of all cells are similar. c. By studying model organisms, what you learn about one type of cell will likely be true for other cells. VII. What are cells made of? Function? How to new cells arise from preexisting cells? How can we grow from a single cell to an animal with 200 different cell types? a. Diseases result from altered cell function from hereditary to environmental diseases. VIII. This course will cover molecular composition of cells, internal organization of cells , cell propagation, a. Unicellular organisms interact with their environment through cellular signaling. b. This course focuses on multicellular organisms which have different cell types that perform different functions and we will learn how cells coordinate their behaviors. IX. Multicellular organisms originate form just one cell from sexual reproduction, meiosis, inheritance, and fertilization. a. We will learn about embryonic development through cell differentiation, proliferation, and coordinated cell behaviors. (gene expression and cell signaling) b. The instruction are in DNA on how organisms grow and develop. These can affect organisms through diseases. X. Take the Prelearning survey for 1% of your grade.
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