Interpreting Data. As shown in Figure 2.17, radiometric dating can be used to determine the age of biological materials. Carbon-14 makes up about 1part per trillion of naturally occurring carbon. When an organism dies, its body contains 1 carbon-14 atom per trillion total carbon atoms. After 5,700 years (the half-life of carbon-14), its body contains one-half as much carbon-14; the other half has decayed and is no longer present. French scientists determined that prehistoric cave paintings were made using natural dyes about 13,000 years ago. How much carbon-14 must the scientists have found in the cave paintings to support this result? Express your answer in both percentage of carbon-14 remaining and in parts of carbon-14 per trillion.
Want to see the full answer?
Check out a sample textbook solutionChapter 2 Solutions
Campbell Essential Biology (7th Edition)
Additional Science Textbook Solutions
Human Anatomy
Essentials of Human Anatomy & Physiology (11th Edition)
Microbiology with Diseases by Body System (4th Edition)
Brock Biology of Microorganisms (15th Edition)
Microbiology: Principles and Explorations
- Growth and Decay1. Discussion of Theory2. Three Examplesarrow_forwardCH2OH NONE H3C-C-H Isotope tracing. Indicate where the OH label would appear in the products. If the product would not contain a label, write ÓH H3C- ČO- CO- CH2OH "NONE" over that CH2OH H2C * product. CH2 OH но Но ČH2OH C=0 ÓH Но ČO- С сооо CH2 HO-C-coo CH2 cooo çoo CH2 光. *CH2 cooe но 1 turn of the TCA O=0arrow_forwardThe importance of carbon lies in a unique combination of properties. Together, these properties are so remarkable that biologists believe they have made life possible. Establish for yourself that you understand them by closing the book and then recording in outline why each is significant.arrow_forward
- CALCULATOR COLOR THEME Q Q ZOOM 3. The 1952 Miller-Urey experiment involved heating water, methane, ammonia, and hydrogen in sealed, interconnected glass vials. The purpose of this experiment was to simulate the conditions and substances on early Earth before life. Heating these simple substances led to the formation of 23 simple amino acids in one week. Amino acids can be linked together into long, complex molecules that cells need to carry out the basic life functions. What can be determined by analyzing the data produced by the Miller-Urey experiment?arrow_forwardFill in the blank. The molecule necessary for carbon to enter the Krebs cycle is _____________.arrow_forwardNucleic Acid Concept Map Add these terms to your concept map should include these concepts and details: Structure (functional groups, shape); Monomer; Linkage; Properties; Functions; Key terms from the Partial List of Key Terms from the Minds Partial Key Term List nucleotide phosphodiester bond nitrogenous base ribose deoxyribose ATP NAD+ NADP+ FAD cAMP potential energy double helix autotroph heterotroph food systemarrow_forward
- Fill in the blanks. Potassium has an atomic number of 19 and a mass number of 40. From this you can determine Potassium has (#) A/ A/ neutrons and (#) protons.arrow_forwardFalse The ability of molecules to exist in two non- superimposable (mirror-image) way called chiral, in which, a carbon atom with four different substituents is said to be symmetric. True Falsearrow_forwardLife, at least in the form found on Earth, is based around one element om particular: Carbon. Pretty much all biomolecules that keep us alive are based on carbon. Why is carbon so important in living systems? Be as specific as you can!arrow_forward
- Name the molecule. And give a process or reaction on why they are important.arrow_forwardHow does the chemical structure of the carbon atom account for the differences between the male and female lions seen in the photo? Match the terms in the left column to the appropriate blanks in the sentences on the right. Not all terms will be used.arrow_forwardatoms. 12 hydrogens, 6 oxuger Click or tap here to enter text.C atoms. 12) Back to the person who ate 300 grams of glucose, how many moles of glucose is this? Click or tap here to enter text. There are 2 moles. 13) If a person were to eat this much glucose all at once (that is a lot of sugar) and all this sugar enters the blood then the person's blood sugar concentration would rise. Imagine that all this glucose is released into the 5 liters of blood that circulate in this person. What would be the molarity of glucose in the blood? Click or tap here to enter text. 14) After each of these glucose molecules enter the blood they are uptaken through cell membranes to enter cells. Within these cells glucose is broken down in a series of steps releasing carbon dioxide along the way. For every molecule of glucose broken down how many molecules of carbon dioxide are created? Refer to the cellular respiration equation: Equation for Cellular Respiration: How to break down a carb C6H12O6 + 60₂ ➜…arrow_forward
- Biology Today and Tomorrow without Physiology (Mi...BiologyISBN:9781305117396Author:Cecie Starr, Christine Evers, Lisa StarrPublisher:Cengage Learning