Life: The Science of Biology
11th Edition
ISBN: 9781319010164
Author: David E. Sadava, David M. Hillis, H. Craig Heller, Sally D. Hacker
Publisher: W. H. Freeman
expand_more
expand_more
format_list_bulleted
Concept explainers
Question
Chapter 51.2, Problem 1R
Summary Introduction
To review:
The fate of ammonia (formed when amino acids are broken down) in body of a fish and in body of a mammal.
Introduction:
Ammonia is the waste product that is to be removed from the body and since, it is very toxic it cannot be stored in the body of organism and diffusion has to be rapid and continuous. Ammonia is synthesized in all the organisms as nitrogenous wastes. It is formed when amino acids are broken down in the body.
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solution
Students have asked these similar questions
Which of the following statements is true about amino acids?
a. All twenty (20) of these protein-derived amino acids are a-amino acids, meaning that the amino group is located on the carbon alpha to the carboxyl group.
b. For nineteen (19) of the twenty (20) amino acids, the a-amino group is primary. Glycine is different; its a-amino group is secondary.
c. With the exception of proline, the a-carbon of each amino acid is a chiral center. As shown in Table 27.1, all 19 chiral amino acids have the same relative
d. Both a & c
Shown below are three amino acids:
H.
H.
H--CH,CH,CH, -N.
NH,
H- CHCH,
NH,
Hn,-SH
NH,
ARGININE
ISOLEUCINE
(ile)
CYSTEINE
(arg)
(cys)
Answer the following questions (12-16).
Give two examples of amino acids that are:
Acidic
Basic
Polar
Nonpolar
Chapter 51 Solutions
Life: The Science of Biology
Knowledge Booster
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, biology and related others by exploring similar questions and additional content below.Similar questions
- Does the chemical reaction to unite amino acids incorporate or liberate atoms? What are the chemical entities incorporated or liberated in this reaction?arrow_forwardThe enzyme phosphofructokinase transfers a phosphate from ATP to the hydroxyl group a C1 of fructose. Similar to fructose, water also has a hydroxyl group and the concentration of water is much higher than that of fructose. Explain why the phosphate is transferred to fructose and not to water.arrow_forwardSome foods naturally have high levels of the free amino acid. For example, parmesan cheese (1689 mg), tomato (246 mg), scallop (159 mg), corn (106 g), and shrimp (43 mg). Wheat protein (gluten) is typically comprised of 30-35% of this amino acid. People with celiac disease cannot metabolize gluten, but have no trouble with foods high in the natural amino acid or MSG. Why is this?arrow_forward
- Which of the following statements about amino acids is/are incorrect? I. The formation of a dipeptide from two amino acid molecules leads to a loss of a water molecule. II. All standard amino acids can be synthesized by the organism. II. All essential amino acids are optically active. IV. Overall, naturally occurring amino acids are equally likely to be found having either an R or S configuration. V. All standard amino acids are neutral at physiological pH. II, IV, and V II, III, IV, and V II, III, and V O , I, and II O , II, and Varrow_forwardRank these three amino acids from most polar to least polar: +H3N-CH-C CH-OH CH3 *H₂N-CH-C-O CH₂ O +H₂N-CH-C-O CH₂ =0 CH-CH3 CH3arrow_forwardYou have a solution with an unknown amino acid. After running a few experiments, you discover the R group has nitrogen, but does not ionize, and the a-amino group is protonated at pH 6. With this information, are you able to know the identity of your unknown amino acid? If so, which one is it? If not, what amino acids are possible? Explain your reasoning.arrow_forward
- Consider the structure of the amino acid L-alanine. Which functional groups are common to all amino acids? H COOH NH₂ CH3arrow_forwardList the name of two amino acids that belong to each of these type of amino acids: Nonpolar (hydrophobic) polar(uncharged) positively charged (basic) negatively charged (acidic)arrow_forwardWhat does it mean for an amino acid to be polar? Please explain what qualities about an amino acid might make the amino acid polar. The disease known as sickle cell anemia is due to a genetic mutation which replaces glutamic acid, a polar amino acid with valine. Please explain how this affects the hemoglobin.arrow_forward
- Amino acids are ionic compounds, very soluble in water. Proteins, however, which are made up of amino acids are much less soluble, and must be folded up very precisely to maximize their solubility. Why are proteins so much less soluble than the amino acids of which they are made?arrow_forwardDescribe how two amino acids are combined to form apolypeptide.arrow_forwardWhich of the following statements about amino acids is/are incorrect? 1. Standard amino acids are so named because these are the only amino acids there are. 2. Essential amino acids can be synthesized by the organism. 3. All standard amino acids are optically active. 4. Overall, naturally occurring amino acids are equally likely to be found having either an R or S configuration around the alpha carbon. O 1, 3, and 4 O 1, 2, 3, and 4 1 and 2 O 1, 2, and 3arrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
Biology (MindTap Course List)BiologyISBN:9781337392938Author:Eldra Solomon, Charles Martin, Diana W. Martin, Linda R. BergPublisher:Cengage Learning
Biology (MindTap Course List)
Biology
ISBN:9781337392938
Author:Eldra Solomon, Charles Martin, Diana W. Martin, Linda R. Berg
Publisher:Cengage Learning