Bio 121 Campbell Biology Truman College
17th Edition
ISBN: 9781323670637
Author: Urry, Cain
Publisher: PEARSON
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Chapter 4.3, Problem 3CC
DRAW IT Ø Suggose you had an organic molecule such as cysteine (see Figure 4.9, sulfhydryl group example), and you chemically removed the —NH2 group and replaced it with —COOH. Draw this structure. How would this change the chemical properties of the molecule? Is the central carbon asymmetric before the change? After?
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In the structure shown, which arrow is pointing to a phosphoester bond?
OH
HO
NH2
OH
OH
HO-P=0
H.
'A
OH
CH3
N.
B NH,
ÓH
O A
O B
O D
O E
O F
0=
DRAW IT Suppose you had an organic molecule suchas cysteine (see Figure 4.9, sulfhydryl group example),and you chemically removed the —NH2 group andreplaced it with —COOH. Draw this structure. Howwould this change the chemical properties of themolecule? Is the central carbon asymmetric beforethe change? After?
Following is a structural formula for the amino acid cysteine:
11
HS-CH₂-CH-C-OH
NH₂
Name the three functional groups in cysteine.
a. What is the name of the highlighted functional
group?
HS-CH₂-CH-C-OH
NH₂
O carboxyl group
O amino group
O thiol group
O disulfide group
What is the name of the highlighted functional
group?
O
HS-CH₂-CH-C-OH
NH₂
O carboxyl group
O amino group
O thiol group
O disulfide group
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Chapter 4 Solutions
Bio 121 Campbell Biology Truman College
Ch. 4.1 - Why was Whler astonished to find he had made urea?Ch. 4.1 - VISUAL SKILLS See Figure 4.2. Miller carried out...Ch. 4.2 - DRAW IT (a) Draw a structural formula for C2H4....Ch. 4.2 - Prob. 2CCCh. 4.2 - How are gasoline and fat chemically similar?Ch. 4.2 - VISUAL SKILLS See Figures 4.5a and 4.7. Can...Ch. 4.3 - VISUAL SKILLS What does the term amino acid...Ch. 4.3 - What chemical change occurs to ATP when it reacts...Ch. 4.3 - DRAW IT Suggose you had an organic molecule such...Ch. 4 - How did Stanley Miller's experiments support the...
Ch. 4 - In what ways does a methyl group differ chemically...Ch. 4 - Prob. 4.3CRCh. 4 - Organic chemistry is currently defined as (A) the...Ch. 4 - Prob. 2TYUCh. 4 - MAKE CONNECTIONS Which chemical group is most...Ch. 4 - VISUAL SKILLS Visualize the structural formula of...Ch. 4 - visual skills Choose the term that correctly...Ch. 4 - VISUAL SKILLS Identify the asymmetric carbon in...Ch. 4 - Which action could produce a carbonyl group? (A)...Ch. 4 - Prob. 8TYUCh. 4 - Prob. 9TYUCh. 4 - SCIENTIFIC INQUIRY 50 years ago, pregnant women...Ch. 4 - WRITE ABOUT A THEME: ORGANIZATION In 1918, an...Ch. 4 - SYNTHESIZE YOUR KNOWLEDGE Explain how the chemical...
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