
Introduction: Most animals consume large and complex foods. Large food particles are broken down into smaller monomers in such a form that can be circulated to every cell throughout the body. These functions are carried out by a set of specialized structure present in an organism called as

Answer to Problem 1SQ
Correct answer: A digestive system functions in order to secrete enzymes, absorb compounds, and eliminate wastes.
Hence, the correct answer is option d.
Explanation of Solution
Reason for correct answer: Digestion of food material starts at the point of the food consumption itself. Varied enzymes are released to break down the food to simpler form. The larger and complex macromolecules are converted to simpler absorbable form. Then, the nutrients are absorbed to respective structures and circulated throughout the body of the organism. At the end of the digestive process, the undigested and unabsorbed materials are expelled out of the organism.
Option d. is given as “all of the above”. This is correct because the digestive system performs all the given functions. It secretes enzymes, absorbs compounds, and also helps in excreting toxic compounds out of the body.
Hence, the correct answer is option d.
Reasons for incorrect answer:
Option a. is given as “secreting enzymes”. Digestive system secretes a series of enzymes called as digestive enzymes that help to break down the complex macromolecules into simpler monomers. But this is incorrect because secreting enzyme is only one of the functions performed by the digestive system. Hence, the correct answer is option a.
Option b. is given as “absorbing compounds”. A digestive system functions as absorbing compounds. Digestion of complex molecules gives small monomers. While passing through the walls of the digestive organ, it gets absorbed to the internal environment of the organism. But this is incorrect because they also perform other functions like secreting enzyme and eliminating waste. Hence, option b. is incorrect.
Option c. is given as “eliminating wastes”. The waste materials that are not digested and absorbed are eliminated by the body. This is incorrect as the digestive system is also involved in other functions. After only digestion and absorption, the elimination step can be carried out. Hence, option c. is incorrect.
Hence, the options a., b., and c. are incorrect.
Want to see more full solutions like this?
Chapter 39 Solutions
Bundle: Biology: The Unity and Diversity of Life, 14th + LMS Integrated for MindTap Biology, 1 term (6 months) Printed Access Card
- 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: The Dynamic Science (MindTap Course List)BiologyISBN:9781305389892Author:Peter J. Russell, Paul E. Hertz, Beverly McMillanPublisher:Cengage Learning
- Comprehensive Medical Assisting: Administrative a...NursingISBN:9781305964792Author:Wilburta Q. Lindh, Carol D. Tamparo, Barbara M. Dahl, Julie Morris, Cindy CorreaPublisher:Cengage Learning


