Biology Final Review Chapter 1 Biology unifies much of natural science * Living systems: most complex chemical systems on Earth * Constrained by properties of chemistry and physics * Science is becoming more interdisciplinary (combining multiple fields) 7 characteristics of all living organisms 1. Composed of cells 2. Complex and ordered 3. Respond to their environment 4. Can grow‚ develop‚ and reproduce 5. Obtain and use energy 6. Maintain internal balance
Premium Protein Adenosine triphosphate Cell
Biology Honors Final Exam Review Study Guide A. Intro Unit * Characteristics of life (DR.CHARGE) * DNA * Directs protein synthesis * Reproduce * Divides in mitosis (asexual reproduction) * Cells * Homeostasis * The process by which cells maintain constant internal condition (water‚ temperature) * Adaptation (Evolution) * Respond to stimulus * Growth (Development) * Energy * Heterotroph: an organism that cannot synthesize its own food
Premium Cell Protein Photosynthesis
instructions for building other molecules Living organisms gather energy and materias from their surrounding to: Build new biological molecules Grow in size Repair their parts Produce offspring All organisms are composed of the same macromolecules (proteins‚ fatty acids/lipids‚ carbs and nucleic acids) All organisms engage in metabolism Marinating internal balance in response to the environment is known as homeostasis The cell is an organized chemical system that includes many specialized molecules
Premium Cell DNA Protein
Cell membrane has proteins (recognize chem sig) floating in lipids and controls active transport‚ recog of chem mess and protection.Damage to cm can disrupt water balance and a cm cant protect cell from all toxins Simple diffusion co2 and h2o can pass cm is selectively permeable maintain homeostatis In a single celled organism cell membrane acts as a lung and does active transport and diffusion. When protein carb and fat are completely digested they will be soluble enough to pass cm Molec b can
Premium Red blood cell Protein Cell membrane
Transcription and Translation Notes for IB Diploma Year 1 DNA is a huge information database that carries the complete set of instructions for making all the proteins a cell will ever need! Although there are only four different bases in DNA (A‚ C‚ G and T)‚ the order in which the bases occur determines the information to make a protein‚ just like the 26 letters of the alphabet combine to form words and sentences: Compare: RAT - TAR - ART - same 3 letters; completely different meanings. And
Premium RNA DNA Protein
The different cell membrane transport mechanisms The cell membrane is referred to as a ‘fluid mosaic model’ because the protein part within the cell membrane used to be though of as an even layer spread over the outside and the inside of the phospholipid. Now we are starting to think that it is spread unevenly‚ more like a mosaic than a layer. The phospholipid part of the cell membrane is fluid; this means that its molecules are constantly moving about. Through the molecules constantly moving
Premium Protein Cell membrane Diffusion
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
Partner: Chantelle Date: Thursday‚ Nov 7th Question 1. What happens to protein when they are exposed to very high temperatures? Proteins exposed to very high temperatures become denatured. Meaning they change shape. If a protein is denatured‚ it usually can’t function the way it is supposed to 2. Contrast carbohydrates and proteins in relation to their chemical structure and their functions in the organism? Similarities: both contain a carbon
Premium Protein Amino acid Enzyme
Biological Molecule Atoms it Contains Monomer(s) Function(s) in Living Organisms Carbohydrates C‚ H‚ and O Monosaccharides Source of energy Lipid C‚ H‚ and O Glycerol and fatty acids Cushion and insulate organs; builds cell membranes Protein C‚ H‚ O‚ N‚ and S Amino Acids Helps chemical reactions‚ provides support and structure‚ provides transport within bodies and provides movement of body Nucleic acids C‚ H‚ O‚ N‚ and P Necleotides Stores and transmits genetic information
Premium Atom DNA Protein
What is the minimum you need to know about proteins 1. Made of long strings of amino acids 2. 20 amino acids all with different properties‚ hydrophobic‚ hydrophyllic polar‚ and hydrophyllic charged (+) and (-) 3. Two amino acids (AA)are linked by dehydration synthesis 4. Primary‚ secondary‚ tertiary and quaternary structures 5. Proteins can be enzymes‚ cell signals‚ structural or hormones 6. A protein has direction‚ the first is the N terminus where you find an amino group. The last is the
Free DNA Protein RNA