1. What is the commonly accepted age of Earth? a. 4.6 million years b. 46 million years c. 4.6 billion years d. 46 billion years 2. Which of the following was not a source of heat for the early Earth? a. meteor bombardment b. gravitational contraction c. radioactivity d. hydrothermal energy 3. What are small asteroids called? a. comets b. meteoroids c. cratons d. microcontinents 4. What is the process by which a planet becomes
Premium Earth Solar System Planet
Sang Kim Enzyme Catalyst Purpose/Problem: There are four parts to the Enzyme Catalyst lab - Activity A‚ B‚ C‚ and D. In activity A‚ the characteristics of enzyme actions will be observed. The main purposes are to determine the rate of an enzyme catalyzed reaction‚ to study the characteristics of an enzyme mediated reaction‚ and to observe the effect of heat on enzyme activity. The purpose of activity B is to use the Titration Protocol to determine the initial amount of H 2O2 present
Premium Enzyme Catalysis Catalase
increasingly complex models at all levels of biology. This paper shows the innovations in studying biology. It discusses the biological level of organization and it also describes the model that has seem to be found on the said level. It was also discussed on this paper that the complex models that was developed for the past few years must have the new methods and techniques to model it. The journal tackles the level of organization‚ multi-scale in modelling in biology‚ MD of ion channels and heart modelling
Premium Biology Life Organism
Biochemistry Essential Elements of Life Carbon‚ hydrogen‚ oxygen‚ nitrogen (96%) Calcium‚ phosphorus‚ potassium‚ sulphur (4%) Isotopes Atoms of an element that differ in neutrons Radioactive isotopes decay spontaneously‚ giving off energy Cohesion Hydrogen bonds hold water molecules together Adhesion is an attraction between two substances Surface tension measures how hard it is to break the surface tension of a liquid Hydrocarbons Organic molecules consisting of only carbon
Premium DNA Adenosine triphosphate Metabolism
Homework #24 (130222): Chapter 14 (due Friday 130222) Total points: 20 for Attempt on all questions ONE Concept Map: 10 points Objectives Gregor Mendel’s Discoveries 1. Explain how Mendel’s particulate mechanism differed from the blending theory of inheritance. • Blending: parents genes mixed • Particulate: parents genes still retain identity\ The blending theory was that genetic material contributed by the two parents mixes in a manner analogous to the way blue and yellow make green
Premium Allele Gregor Mendel Dominance
Cell Respiration & Photosynthesis BIO STUDY GUIDE (Ch. 9.1-9.5‚ 10.1-10.3) I) CELLULAR RESPIRATION A) Catabolic Pathways A.1) Fermentation: partial degradation of sugar that occurs w/o oxygen A.2) Cellular Respiration: oxygen is used A.3) Redox Reactions (Oxidation-Reduction that exchanges electrons) Oxidation: loss of electrons (energy must be added) Reduction: addition of electrons. (-) charged electrons added to atom reduce amount of (+) charge of that atom A.4) Stepwise Energy Harvest
Free Photosynthesis Cellular respiration Adenosine triphosphate
Chapter 3 3.1 Identify the functional groups in each of the following molecules: O C NH2 H N O C OH H C CH2 (a) (b) O (c) Solutions: a. b. c. d. Amide‚ double bond Amine‚ carboxylic acid Double bond‚ ketone‚ ester O OCH3 (d) CH2OH Aromatic ring‚ double bond‚ alcohol (a) Alcohol (d) Amine (b) Aromatic ring (e) both ketone and amine (c) Carboxylic acid (f) two double bonds 3.2 Propose structures for simple molecules that contain the following functional groups:
Premium Oxygen Hydrogen Functional group
Study Questions for Mann‚ 1491 1. Until quite recently‚ most American history textbooks taught that before Europeans invaded the Americas Indians were savages who lived in isolated groups and had so little impact on their environment that it remained a pristine wilderness. We now know from scientific discoveries that this account was wrong. What is the effect of learning that most of what we have assumed about the past is "wrong in almost every aspect‚" as Mann puts it on page 4? - What
Premium Native Americans in the United States United States Indigenous peoples of the Americas
AP Biology Study Guide Chapter 11 1. Categorize chemical signals in terms of the proximity of the communicating cells. Local signaling – a. Paracrine signaling – a secreting cell acts on nearby target cells by discharging molecules of a local regulator (a growth factor‚ for example) into the extracellular fluid. b. Synaptic signaling – a nerve cell releases neurotransmitter molecules into a synapse‚ stimulating the target cell. Long distance signaling- c. Hormonal signaling – specialized
Premium Signal transduction
Labset Three Worksheet 1. What is a carbohydrate profile? Why are they used as a diagnostic or identifying tool? (2) Carbohydrate profiles are specific information on the type and amount of carbohydrate that a product contains. It is used to identify and differentiate two closely related species. 2. What are the carbohydrate profiles of the organisms you tested? (2) The yeast carbohydrate profile came out with glucose and fructose positive and Mannitol negative. The staph epidermidis
Premium Enzyme Glucose Carbohydrate