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Concept explainers
(a)
Interpretation: To identify whether the statement “gastrin is a hormone released by stomach mucosa cells” relating to protein digestion is true or false.
Concept introduction: Proteins are natural biopolymers. Amino acids are the main building block of protein molecules. A large number of amino acids condense together to form a polypeptide chain. A large polypeptide chain is called protein. The digestion of dietary protein starts in the stomach and is completed in the small intestine. It does not start in the mouth because saliva present in the mouth does not contain an effective enzyme to break down the protein. The flow chart for protein digestion in the human body is as follows:
(b)
Interpretation: To identify whether the statement “approximately
Concept introduction: Proteins are natural biopolymers. Amino acids are the main building block of protein molecules. A large number of amino acids condense together to form a polypeptide chain. A large polypeptide chain is called protein. The digestion of dietary protein starts in the stomach and is completed in the small intestine. It does not start in the mouth because saliva present in the mouth does not contain an effective enzyme to break down the protein. The flow chart for protein digestion in the human body is as follows:
(c)
Interpretation: To identify whether the statement “hydrochloric acid functions as a denaturing agent in the stomach” relating to protein digestion is true or false.
Concept introduction: Proteins are natural biopolymers. Amino acids are the main building block of protein molecules. A large number of amino acids condense together to form a polypeptide chain. A large polypeptide chain is called protein. The digestion of dietary protein starts in the stomach and is completed in the small intestine. It does not start in the mouth because saliva present in the mouth does not contain an effective enzyme to break down the protein. The flow chart for protein digestion in the human body is as follows:
(d)
Interpretation: To identify whether the statement “pancreatic digestive enzymes include carboxypeptidase and aminopeptidase” relating to protein digestion is true or false.
Concept introduction: Proteins are natural biopolymers. Amino acids are the main building block of protein molecules. A large number of amino acids condense together to form a polypeptide chain. A large polypeptide chain is called protein. The digestion of dietary protein starts in the stomach and is completed in the small intestine. It does not start in the mouth because saliva present in the mouth does not contain an effective enzyme to break down the protein.
The flow chart for protein digestion in the human body is as follows:
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Chapter 26 Solutions
EBK GENERAL, ORGANIC, AND BIOLOGICAL CH
- Q1: For each molecule, assign each stereocenter as R or S. Circle the meso compounds. Label each compound as chiral or achiral. + CI Br : Н OH H wo་ཡིག་ཐrow HO 3 D ။။ဂ CI Br H, CI Br Br H₂N OMe R IN I I N S H Br ជ័យ CI CI D OHarrow_forwardPlease correct answer and don't use hand ratingarrow_forwardNonearrow_forward
- %Reflectance 95 90- 85 22 00 89 60 55 50 70 65 75 80 50- 45 40 WA 35 30- 25 20- 4000 3500 Date: Thu Feb 06 17:21:21 2025 (GMT-05:0(UnknownD Scans: 8 Resolution: 2.000 3000 2500 Wavenumbers (cm-1) 100- 2981.77 1734.25 2000 1500 1000 1372.09 1108.01 2359.09 1469.82 1181.94 1145.20 1017.01 958.45 886.97 820.49 668.25 630.05 611.37arrow_forwardNonearrow_forwardCH3 CH H3C CH3 H OH H3C- -OCH2CH3 H3C H -OCH3 For each of the above compounds, do the following: 1. List the wave numbers of all the IR bands in the 1350-4000 cm-1 region. For each one, state what bond or group it represents. 2. Label equivalent sets of protons with lower-case letters. Then, for each 1H NMR signal, give the 8 value, the type of splitting (singlet, doublet etc.), and the number protons it represents. of letter δ value splitting # of protons 3. Redraw the compound and label equivalent sets of carbons with lower-case letters. Then for each set of carbons give the 5 value and # of carbons it represents. letter δ value # of carbonsarrow_forward
- Nonearrow_forwardCarbohydrates- Draw out the Hawthorne structure for a sugar from the list given in class. Make sure to write out all atoms except for carbons within the ring. Make sure that groups off the carbons in the ring are in the correct orientation above or below the plane. Make sure that bonds are in the correct orientation. Include the full name of the sugar. You can draw out your curve within the text box or upload a drawing below.arrow_forwardHow many milliliters of 97.5(±0.5) wt% H2SO4 with a density of 1.84(±0.01) g/mL will you need to prepare 2.000 L of 0.110 M H2SO4? If the uncertainty in delivering H2SO4 is ±0.01 mL, calculate the absolute uncertainty in the molarity (0.110 M). Assume there is negligible uncertainty in the formula mass of H2SO4 and in the final volume (2.000 L) and assume random error.arrow_forward
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