Biosynthesis MCQs
Biosynthesis MCQs
Answer these Biosynthesis MCQs and assess your grip on the subject of Biosynthesis. Scroll below and get started!
1: Repressors act by blocking the binding of _____ to the operator.
A. RNA polymerase
B. Promoters.
C. DNA polymerase
D. Regulatory genes
2: The l conformation of atp synthase catalytic sites ________..
A. Has a very low affinity for nucleotides
B. Loosely binds AMP and inorganic phosphate groups
C. Has a very low affinity for proteins
D. Binds ATP, ADP and inorganic phosphate groups tightly
E. Loosely binds ADP and inorganic phosphate groups
3: Each ________ controls the production of a particular protein.
A. RNA
B. DNA.
C. None
4: Ribosomes can attach to prokaryotic messenger rna _____.
A. Once the primary transcript has been released from RNA polymerase
B. Once post-transcriptional modification is complete
C. Before transcription is complete
D. Once replication is complete
5: What is biosynthesis?
A. The breakdown of complex molecules into simpler ones
B. The process of converting sunlight into energy
C. The synthesis of complex molecules by living organisms
D. The formation of simple molecules from inorganic materials
6: Where does biosynthesis primarily occur in cells?
A. Nucleus
B. Ribosomes
C. Mitochondria
D. Endoplasmic reticulum
7: What role does DNA play in biosynthesis?
A. It acts as a catalyst in the synthesis of proteins
B. It serves as a template for RNA synthesis
C. It contains the genetic information that guides biosynthesis
D. It directly participates in the production of energy
8: Which cellular process involves the biosynthesis of proteins using messenger RNA (mRNA) as a template?
A. Glycolysis
B. Photosynthesis
C. Transcription
D. Translation
9: What is the main function of enzymes in biosynthesis?
A. To store energy in cells
B. To act as structural components of cells
C. To catalyze chemical reactions and facilitate the synthesis of molecules
D. To regulate cell division
10: Which of the following is an example of biosynthesis in plants?
A. The breakdown of glucose during cellular respiration
B. The conversion of sunlight into chemical energy
C. The synthesis of glucose during photosynthesis
D. The production of carbon dioxide during respiration
11: In biosynthesis, what is the role of ribosomes?
A. To produce energy for the cell
B. To store genetic information
C. To carry out the synthesis of proteins
D. To regulate cell division
12: What is the primary source of atoms used in biosynthesis?
A. Air
B. Water
C. Soil
D. Nutrients derived from the diet
13: Which of the following is an essential element required for biosynthesis in plants?
A. Carbon dioxide
B. Oxygen
C. Nitrogen
D. Hydrogen
14: What is the key role of biosynthesis in living organisms?
A. To break down molecules for energy production
B. To maintain cellular structure and function
C. To synthesize complex molecules necessary for growth, maintenance, and reproduction
D. To eliminate waste products from cells
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Biosynthesis MCQs
