CONCEPTS OF BIOLOGY
13th Edition
ISBN: 2810014143673
Author: OpenStax
Publisher: OpenStax
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Textbook Question
Chapter 2, Problem 2RQ
Magnesium has an atomic number of 12. Which of the following statements is true of a neutral magnesium atom?
a. It has 12 protons, 12 electrons, and 12 neutrons.
b. It has 12 protons, 12 electrons, and six neutrons.
c. It has six protons, six electrons, and no neutrons.
d. It has six protons, six electrons, and six neutrons.
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Chapter 2 Solutions
CONCEPTS OF BIOLOGY
Ch. 2 - Figure 2.3 How many neutrons do (K) potassium-39...Ch. 2 - Magnesium has an atomic number of 12. Which of the...Ch. 2 - Which type of bond represents a weak chemical...Ch. 2 - An isotope of sodium (Na) has a mass number of 22....Ch. 2 - Which of the following statements is not true? a....Ch. 2 - Using a pH meter, you find the pH of an unknown...Ch. 2 - The pH of lemon juice is about 2.0, whereas tomato...Ch. 2 - An example of a monosaccharide is ________. a....Ch. 2 - Cellulose and starch are examples of______. a....Ch. 2 - Phospholipids are important components of_______....
Ch. 2 - The monomers that make up proteins are...Ch. 2 - Why are hydrogen bonds and van der Waals...Ch. 2 - Why can some insects walk on water?Ch. 2 - Explain why water is an excellent solvent.Ch. 2 - Explain at least three functions that lipids serve...Ch. 2 - Explain what happens if even one amino acid is...
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- C MasteringHealth MasteringNu × session.healthandnutrition-mastering.pearson.com/myct/itemView?assignment ProblemID=17396416&attemptNo=1&offset=prevarrow_forward10. Your instructor will give you 2 amino acids during the activity session (video 2-7. A. First color all the polar and non-polar covalent bonds in the R groups of your 2 amino acids using the same colors as in #7. Do not color the bonds in the backbone of each amino acid. B. Next, color where all the hydrogen bonds, hydrophobic interactions and ionic bonds could occur in the R group of each amino acid. Use the same colors as in #7. Do not color the bonds in the backbone of each amino acid. C. Position the two amino acids on the page below in an orientation where the two R groups could bond together. Once you are satisfied, staple or tape the amino acids in place and label the bond that you formed between the two R groups. - Polar covalent Bond - Red - Non polar Covalent boND- yellow - Ionic BonD - PINK Hydrogen Bonn - Purple Hydrophobic interaction-green O=C-N H I. H HO H =O CH2 C-C-N HICK H HO H CH2 OH H₂N C = Oarrow_forwardFind the dental formula and enter it in the following format: I3/3 C1/1 P4/4 M2/3 = 42 (this is not the correct number, just the correct format) Please be aware: the upper jaw is intact (all teeth are present). The bottom jaw/mandible is not intact. The front teeth should include 6 total rectangular teeth (3 on each side) and 2 total large triangular teeth (1 on each side).arrow_forward12. Calculate the area of a circle which has a radius of 1200 μm. Give your answer in mm² in scientific notation with the correct number of significant figures.arrow_forwardDescribe the image quality of the B.megaterium at 1000X before adding oil? What does adding oil do to the quality of the image?arrow_forwardWhich of the follwowing cells from this lab do you expect to have a nucleus and why or why not? Ceratium, Bacillus megaterium and Cheek epithelial cells?arrow_forward14. If you determine there to be debris on your ocular lens, explain what is the best way to clean it off without damaging the lens?arrow_forward11. Write a simple formula for converting mm to μm when the number of mm's is known. Use the variable X to represent the number of mm's in your formula.arrow_forward13. When a smear containing cells is dried, the cells shrink due to the loss of water. What technique could you use to visualize and measure living cells without heat-fixing them? Hint: you did this technique in part I.arrow_forward10. Write a simple formula for converting μm to mm when the number of μm's are known. Use the variable X to represent the number of um's in your formula.arrow_forward8. How many μm² is in one cm²; express the result in scientific notation. Show your calculations. 1 cm = 10 mm; 1 mm = 1000 μmarrow_forwardFind the dental formula and enter it in the following format: I3/3 C1/1 P4/4 M2/3 = 42 (this is not the correct number, just the correct format) Please be aware: the upper jaw is intact (all teeth are present). The bottom jaw/mandible is not intact. The front teeth should include 6 total rectangular teeth (3 on each side) and 2 total large triangular teeth (1 on each side).arrow_forwardarrow_back_iosSEE MORE QUESTIONSarrow_forward_ios
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