Concept explainers
Videos
The enzyme amylase accelerate s the reaction of changing
a. polysaccharides into monosaccharides.
b. disaccharides into monosaccharides.
c. starch into disaccharides.
d. disaccharides into glucose.
Introduction:
Enzymes are biological catalysts that modify or speed up a specific chemical reaction. Digestion also involves many enzymatic reactions. One such reaction occurring during digestion of carbohydrate, involves the enzyme salivary amylase. Salivary amylase is secreted in the mouth and it accelerates the conversion of polysaccharides (starch) into disaccharides (sugar).
Answer to Problem 1PL
Correct answer:
The correct answer is option (c) starch into disaccharides.
Explanation of Solution
Explanation/justification for the correct answer:
Option (c) starch into disaccharides is the correct answer. Salivary amylase is a digestive enzyme that acts on starch which is a complex carbohydrate and hydrolyzes it into sugar which is a disaccharide. So, the correct answer is option (c).
Explanation for incorrect answer:
Option (a) polysaccharides into monosaccharides. Polysaccharides are first converted into disaccharides by amylase and then into monosaccharides by an intestinal enzyme called maltase. Amylase enzyme does not change polysaccharides directly into monosaccharides. So, this is an incorrect option.
Option (b) disaccharides into monosaccharides.Amylase enzyme accelerates conversion of polysaccharides into disaccharides and not disaccharides into monosaccharides. Disaccharides are changed into monosaccharides by an intestinal enzyme called maltase. So, this is an incorrect answer.
Option (d) disaccharides into glucose.Disaccharides are changed into glucose which is a monosaccharide by intestinal enzyme called maltase and not by amylase. So, this is an incorrect answer.
Want to see more full solutions like this?
Chapter 55 Solutions
Laboratory Manual For Human Anatomy & Physiology
- What happens to a microbes membrane at colder temperature?arrow_forwardGenes at loci f, m, and w are linked, but their order is unknown. The F1 heterozygotes from a cross of FFMMWW x ffmmww are test crossed. The most frequent phenotypes in the test cross progeny will be FMW and fmw regardless of what the gene order turns out to be. What classes of testcross progeny (phenotypes) would be least frequent if locus m is in the middle? What classes would be least frequent if locus f is in the middle? What classes would be least frequent if locus w is in the middle?arrow_forward1. In the following illustration of a phospholipid... (Chemistry Primer and Video 2-2, 2-3 and 2-5) a. Label which chains contain saturated fatty acids and non-saturated fatty acids. b. Label all the areas where the following bonds could form with other molecules which are not shown. i. Hydrogen bonds ii. Ionic Bonds iii. Hydrophobic Interactions 12-6 HICIH HICIH HICHH HICHH HICIH OHHHHHHHHHHHHHHHHH C-C-C-C-C-c-c-c-c-c-c-c-c-c-c-c-C-C-H HH H H H H H H H H H H H H H H H H H HO H-C-O H-C-O- O O-P-O-C-H H T HICIH HICIH HICIH HICIH HHHHHHH HICIH HICIH HICIH 0=C HIC -C-C-C-C-C-C-C-C-CC-C-C-C-C-C-C-C-C-H HHHHHHHHH IIIIIIII HHHHHHHH (e-osbiv)arrow_forward
- O Macmillan Learning Glu-His-Trp-Ser-Gly-Leu-Arg-Pro-Gly The pKa values for the peptide's side chains, terminal amino groups, and carboxyl groups are provided in the table. Amino acid Amino pKa Carboxyl pKa Side-chain pKa glutamate 9.60 2.34 histidine 9.17 1.82 4.25 6.00 tryptophan 9.39 2.38 serine 9.15 2.21 glycine 9.60 2.34 leucine 9.60 2.36 arginine 9.04 2.17 12.48 proline 10.96 1.99 Calculate the net charge of the molecule at pH 3. net charge at pH 3: Calculate the net charge of the molecule at pH 8. net charge at pH 8: Calculate the net charge of the molecule at pH 11. net charge at pH 11: Estimate the isoelectric point (pl) for this peptide. pl:arrow_forwardBiology Questionarrow_forwardThis entire structure (Pinus pollen cone) using lifecycle terminology is called what?arrow_forward
- This entire structure using lifecycle terminology is called what? megastrobilus microstrobilus megasporophyll microsporophyll microsporangium megasporangium none of thesearrow_forwardHow much protein should Sarah add to her diet if she gets pregnant? Sarah's protein requirements during pregnancy would be higher. See Hint B2. During calculations, use numbers rounded to the first decimal place. In your answer, round the number of grams to the nearest whole number. _______ g ?arrow_forwardC MasteringHealth MasteringNu X session.healthandnutrition-mastering.pearson.com/myct/itemView?assignment ProblemID=17396422&attemptNo=1&offset=prevarrow_forwardarrow_back_iosSEE MORE QUESTIONSarrow_forward_ios
Biology Today and Tomorrow without Physiology (Mi...BiologyISBN:9781305117396Author:Cecie Starr, Christine Evers, Lisa StarrPublisher:Cengage Learning
Concepts of BiologyBiologyISBN:9781938168116Author:Samantha Fowler, Rebecca Roush, James WisePublisher:OpenStax College