12 Questions
Which of the following is a key characteristic of a prokaryote cell?
Genetic material located in the cell plasma
Which of the following biogenic elements is considered a secondary element in cell composition?
Sulfur
Which type of RNA is responsible for transporting amino acids to ribosomes and decoding genetic information?
tRNA
What is the primary function of the cell cortex?
Providing a network of proteins on the intracellular side of the cell membrane
Which of the following organic compounds has the highest energy content?
Fats
What is the primary function of ribonucleic acid (RNA) in the cell?
Synthesizing proteins
Which of the following statements about endosymbiosis is correct?
Both (a) and (c) are correct.
What is the central dogma of molecular biology?
It is the unidirectional flow of genetic information from DNA to RNA to proteins to phenotype.
What is the function of exons in eukaryotic genes?
Exons are coding sequences in genes that are retained in mature mRNA for translation.
What is the role of RNA splicing in eukaryotic gene expression?
It is the post-transcriptional process of removing introns and joining exons to generate mature mRNA.
Which of the following statements about heterotrophs is true?
Heterotrophs include animals, protozoans, fungi, and most bacteria.
What distinguishes autotrophs from heterotrophs?
Autotrophs produce ATP through photosynthesis or chemosynthesis, while heterotrophs obtain ATP from the degradation of organic materials.
Test your knowledge on the origin of life, basic cell functions, endosymbiosis, the central dogma of molecular biology, transcription processes, and gene expression. Includes topics like the origin of mitochondria and chloroplasts through engulfment of prokaryotic organisms.
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