The studies of Robert Hooke 1665 into a plant material would allow the determination of a pore like regular structure surrounded by a wall of which he called cells’ this in itself unbeknownst to him‚ was the discovery of the fundamental unit of all living things. In 1838 a botanist called Schleiden derived the theory The basic unit of structure and function of all living organisms is the cell.’ Over 150 years later this can be regarded as one of the most familiar and important facts within the
Free Cell Eukaryote Organelle
Concept of a cell: Prokaryote‚ Eukaryote‚ Animal and Plant Cells; cellular organelles 2. Cell components (Structure & Function): Water and buffer‚ amino acids and protein‚ fatty acids and lipid‚ monosaccharide and carbohydrate‚ nucleotides and DNA‚ RNA‚ membrane and membrane transport Objectives: 3. Enzymology: Enzyme as catalysts‚ enzyme kinetics‚ inhibitor effects‚ enzyme regulations‚ allosteric enzymes (after mid-sem break) 4. Energetics and metabolisms: Bioenergetic principles
Premium Cell Bacteria Eukaryote
B I O L O G Y 130 INTRODUCTORY CELL BIOLOGY LECTURE NOTES Department of Biology University of Waterloo Fall‚ 2012 BIOL 130 LECTURE NOTES Fall‚ 2012 a Lecture Notes This booklet contains the notes that will be presented as part of the online modules. For copyright reasons‚ the figures that will be shown along with the notes cannot be reproduced. However‚ most of these figures come from the required course text‚ Cell and Molecular Biology: Concepts and Experiments‚ 6th edition
Premium Covalent bond Protein DNA
Biological Science‚ 5e (Freeman) Chapter 1 Biology and the Tree of Life 1) Pasteur’s experiments proved that A) Cells cannot survive in swan necked flasks B) In order to grow‚ cells need to be supplied with oxygen C) Spontaneous generation can only occur if nutrient broth is left open to the environment D) Sterilizing nutrient broth prevents spontaneous generation E) Pre-existing cells present in the air can grow in sterilized nutrient broth Answer: E Bloom’s Taxonomy: Knowledge/Comprehension
Free Scientific method Experiment Theory
swelling. ii. Typical bacterial cell: a. Nucleoid material b. Cytoplasm à ribosome’s c. Cell membrane d. Cell wall (MOST) iii. Chemical in cell wall (LAB); staining techniques. • Viruses: 1. Consists of nucleic acids (DNA or RNA) a. and Protein coat b. Not considered a living thing à NOT A CELLà A particle. 2. Needs a host cell (Human‚ other animal‚ bacterial & plant). a. Can
Free Bacteria Cell Eukaryote
The mTOR Pathway Introduction The mammalian target of rapamycin (mTOR) signaling pathway integrates both intracellular and extracellular signals and serves as a central regulator of cell metabolism‚ growth‚ proliferation and survival. Discoveries that have been made over the last decade show that the mTOR pathway is activated during various cellular processes (e.g. tumor formation‚ insulin resistance‚ adipogenesis and T-lymphocyte activation) and is deregulated in human diseases such as cancer
Premium Signal transduction Protein
Tularemia (Rabbit Fever‚ Deer-fly Fever) Tularemia is an infective disease caused by the gram negative bacteria Francisella tularensi (F. tularensis)‚ which is found in habitats limited to the Northern division. (misc.medscape.com)The disease got the name description in 1911 of a plague like illness found in ground squirrels in Tulare County‚ California‚ by Dr. Edward Francis. This bacteria is usually found in rabbits‚ and can also found in other small animals like rodents‚ muskrats‚ beavers‚ squirrels
Premium Bacteria Infection Immune system
CHAPTER EIGHT 8 AN OVERVIEW OF GENE EXPRESSION HOW TRANSCRIPTIONAL SWITCHES WORK THE MOLECULAR MECHANISMS THAT CREATE SPECIALIZED CELL TYPES POST-TRANSCRIPTIONAL CONTROLS Control of Gene Expression An organism’s DNA encodes all of the RNA and protein molecules that are needed to make its cells. Yet a complete description of the DNA sequence of an organism—be it the few million nucleotides of a bacterium or the few billion nucleotides in each human cell—does not enable us to reconstruct the
Premium DNA Gene expression
Human Physiology Packet #1 Slate Masunaga Period 6 Table Of Contents: Chapter 1 Vocabulary Chapter 2 Vocabulary Chapter 3 Vocabulary Did you get it Questions Chapters 1-3 (in order) Review Questions Chapters 1-3 Chapter 1 Vocabulary Anatomy: structure Physiology: function Transverse/horizontal: plane that divides body into superior/upper & an inferior/lower sections Sagittal lengthwise plane dividing the body into right & left sections Midsagittal/median: lengthwise
Free DNA Protein
Cell Processes and Body Organisation Nucleus The nucleus is the largest‚ most prominent organelle‚ usually spherical and roughly about 10mm in diameter. Every eukaryote cell‚ with the exception of red blood cells due to their very specific function‚ has a nucleus. The nucleus’ function is to store DNA‚ it does so in two ways: One is tightly packed and this is called heterochromatin‚ this isn’t read. And the other is loosely packed‚ named euchromatin. Euchromatin is the actively read material
Premium Cell Organelle Endoplasmic reticulum