Concept explainers
(a)
Interpretation:The correct name for the following sugar should be determined:
Concept Introduction: A convention used to represent a 3-D stereo formula in 2-D representation is said to be Fischer projections. In this projection, the vertical lines represent bonds below the plane of the paper and horizontal lines represents bonds above the plane of the paper.
(b)
Interpretation: The correct name for the following sugar should be determined:
Concept Introduction: A convention used to represent a 3-D stereo formula in 2-D representation is said to be Fischer projections. In this projection, the vertical lines represent bonds below the plane of the paper and horizontal lines represents bonds above the plane of the paper.
(c)
Interpretation: The correct name for the following sugar should be determined:
Concept Introduction: A convention used to represent a 3-D stereo formula in 2-D representation is said to be Fischer projections. In this projection, the vertical lines represent bonds below the plane of the paper and horizontal lines represents bonds above the plane of the paper.
(d)
Interpretation: The correct name for the following sugar should be determined:
Concept Introduction: A convention used to represent a 3-D stereo formula in 2-D representation is said to be Fischer projections. In this projection, the vertical lines represent bonds below the plane of the paper and horizontal lines represents bonds above the plane of the paper.
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Introduction To General, Organic, And Biochemistry
- Part 3 of 3 Modify the structure of lactulose to show the monosaccharide products that form from hydrolysis. You may draw the structures in any arrangement that you like, so long as they aren't touching. он H сн, он :☐ Он × 5 H H HO снон Сн, он H Он Н д- Н Н OH Нarrow_forward4. Complete the following Reactions thank youarrow_forwardClassify these sugars by using a name that indicates both the number of carbons and the main functional group present in each. CHO Но a) H- OH H- OH ČH2OH CH2OH HO b) НО H- OH ČH2OHarrow_forward
- Consider the molecule shown below. Which statement is FALSE? H H HO H- CHO -OH -OH -H -OH CH₂OH This is an aldohexose. This is a D isomer This molecule has five chiral carbons. This is a monosaccharide. Humans can easily digest this compound.arrow_forwardWhat is the name of the sugar shown here? OH OH Он O L-xylose O D-xylose O D-erythrose.arrow_forwardHighlight each glycosidic bond in the molecule below. Then answer the questions in the table under the drawing area. 1 HO-CH, Н HO HO HO–CH, Н Н ОН Н Н Н OH Н o H ОН Н О Н Н OH CH₂ H ОН OH Н ОН HO–CH, Н Н OH H List the symbol for each type of glycosidic bond in the molecule above. For example, if there are three a,y(1-5) glycosidic bonds, write "a.r(1 - 5)". If there is more than one type of glycosidic bond, separate each symbol with a comma. Could this molecule be a tiny piece of any of the polymers listed at right? If so, check the box next to each polymer of which this molecule could be a tiny piece. O H Н ОН ОН 8 ODNA RNA O amylose glycogen O cellulose amylopectinarrow_forward
- Name the product of the following reaction: Cl,,H*,H,Oarrow_forwardBenedict’s solution can be used to distinguish between: a) fructose and glucose b) maltose and lactose c) maltose and amylose d) amylose and amylopectinarrow_forwardWhat is the name of compound A? CHO H- OH но -H- H- OH ČH,OH A A. D-ribose B. L-talose C. D-threose D. D-xylose E. L-threose A В D Earrow_forward
- Take a look at this molecule, and then answer the questions in the table below it. CH₂OH H OH HOCH2 H I OH H H OH H OH OH H H Is this a reducing sugar? Does this molecule contain a glycosidic bond? If you said this molecule does contain a glycosidic bond, write the symbol describing it. If you said this molecule does contain a glycosidic bond, write the common names (including anomer and enantiomer labels) of the molecules that would be released if that bond were hydrolyzed. If there's more than one molecule, separate each name with a comma. yes 0 no yes no 0-0arrow_forward1. Alcohol A reacts with oxygen slowly to produce a,ß-unsaturated ketone B. Applying similar reaction conditions to alcohol C, it is expected that ketone D is produced. However, D is not the product of this reaction. What is the actual product formed from the oxidation of C? Explain your reasoning. ܕ ܕܝܪ OH A B ОН 0arrow_forwardEthanol (CH3CH2OH) is the alcohol found in beverages. It is oxidized in the body to acetaldehyde by the enzyme alcohol dehydrogenase. Methanol (CH3OH), also known as wood alcohol, is converted to formaldehyde by the same enzyme. Acetaldehyde is toxic, but formaldehyde is far more toxic to humans, which is why the ingestion of relatively small amounts of methanol can cause blindness or death. One treatment for mild methanol poisoning is the administration of ethanol. Why might a doctor choose this treatment? A. Ethanol likely irreversibly binds to alcohol dehydrogenase which prevents the formation of formaldehyde. B. The doctor has given up on the patient and administers ethanol for sedation. C. Ethanol must act as a competitive inhibitor for the alcohol dehydrogenase and therefore slows the formation of formaldehyde. D. The ethanol is likely an uncompetitive inhibitor and binds to a site other than the active site of the enzyme.arrow_forward
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