Scelta multipla
How many phosphate groups are present in adenosine diphosphate (ADP)?
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3. Amino Acids
Amino Acid Groups
Scelta multipla
Which four types of atoms are found in all standard amino acids?
A
Carbon, oxygen, phosphorus, and nitrogen
B
Carbon, hydrogen, oxygen, and nitrogen
C
Carbon, hydrogen, sulfur, and nitrogen
D
Hydrogen, oxygen, sulfur, and phosphorus
Guida verificata passo dopo passo1
Understand the structure of standard amino acids: All standard amino acids share a common structure consisting of a central carbon atom (α-carbon) bonded to four groups: an amino group (-NH₂), a carboxyl group (-COOH), a hydrogen atom, and a variable side chain (R group).
Identify the atoms present in the amino group (-NH₂): This group contains nitrogen (N) and hydrogen (H).
Identify the atoms present in the carboxyl group (-COOH): This group contains carbon (C), oxygen (O), and hydrogen (H).
Recognize that the α-carbon is bonded to a single hydrogen atom, contributing another hydrogen (H) to the structure.
Conclude that the four types of atoms found in all standard amino acids are carbon (C), hydrogen (H), oxygen (O), and nitrogen (N), as these are present in the amino group, carboxyl group, and the α-carbon structure.
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