Proteins are the _______ and most _______ molecule of all food substances.

Quiz on Proteins

Quiz
•
Hospitality and Catering
•
12th Grade
•
Hard
Cayla Young
Used 3+ times
FREE Resource
20 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
longest, complex
shortest, simple
smallest, complex
longest, simple
Answer explanation
Proteins are the longest and most complex molecules among food substances, consisting of long chains of amino acids that fold into intricate structures, making them essential for various biological functions.
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which of the following is the complete list of components which make up amino acids?
Nitrogen, carbon, phosphorus and sulfur
Carbon, nitrogen, oxygen and phosphorus
Sulfur, hydrogen, nitrogen, and either carbon, oxygen or phosphorus
Carbon, hydrogen, oxygen, and either nitrogen, sulfur or phosphorus
Answer explanation
Amino acids are composed of carbon, hydrogen, oxygen, and either nitrogen, sulfur, or phosphorus. The correct choice includes all essential elements, making it the complete list of components for amino acids.
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Amino acids are linked by _______ bonds and held together by _______ bonds.
hydrogen, peptide
peptide, hydrogen
ionic, covalent
covalent, ionic
Answer explanation
Amino acids are linked by peptide bonds, which are a type of covalent bond. They are held together in a protein structure by hydrogen bonds, which stabilize the overall shape of the protein.
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Proteins are a chain of _______ acids linked by _______ bonds.
nucleic, ionic
amino, peptide
fatty, covalent
nucleic, peptide
Answer explanation
Proteins are made up of amino acids, which are linked together by peptide bonds. This is the fundamental structure of proteins, making 'amino' and 'peptide' the correct terms to fill in the blanks.
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Protein synthesis is the process of amino acids determining specific DNA sequences in order to create varying proteins.
True
False
Sometimes true
Always true
Answer explanation
The statement is false because protein synthesis involves ribosomes translating mRNA sequences into amino acids, not the other way around. Amino acids are determined by mRNA, which is transcribed from DNA.
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
During transcription, RNA _______ helps to create a copy of DNA, called _______.
polymerase, mRNA
mRNA, polymerase
DNA, transcription
transcription, DNA
Answer explanation
During transcription, RNA polymerase synthesizes a complementary RNA strand from the DNA template, resulting in the formation of mRNA. Thus, the correct answer is 'polymerase, mRNA'.
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Primary structure occurs in a _______.
Three-dimensional pattern
Linear pattern
Globular pattern
Fibrous pattern
Answer explanation
Primary structure refers to the linear sequence of amino acids in a protein. This linear pattern is crucial as it determines the protein's overall structure and function.
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