Answer:
The correct answer would be B-alcohol fermentation.
Alcohol fermentation or ethanol fermentation is a type of anaerobic respiration by which organism (such as yeast) convert sugar such as glucose, sucrose et cetera into ethanol and carbon dioxide in order to produce energy.
First, glucose is converted into 2 molecules of pyruvate by the process of glycolysis. It leads to the formation of 2 molecules of ATP (adenosine triphosphate) and 2 molecules of NADH.
Then, two molecules of pyruvate are converted into two molecules of acetaldehyde with the help of enzyme pyruvate decarboxylase. Two molecules of carbon dioxide are released as a byproduct.
Lastly, two molecules of acetaldehyde are converted into two molecules of ethanol with the help of enzyme alcohol dehydrogenase. It consumes two NADH and regenerates two NAD⁺ lost during the process of glycolysis.
Hence, the net gain of alcohol fermentation is two ATP.
Thus, we can say that ethanol is produced during alcohol fermentation.
During alcohol fermentation ethanol is produced.
Alcohol fermentation involves the break down of sugars in organisms such as yeast to form ethanol or alcohol, carbon dioxide and release energy.
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Keywords: Anaerobic respiration, Fermentation, alcohol fermentation, Glycolysis, steps involved in alcohol fermentation
Level: High school
Subject: Biology
Topic: Respiration
Sub topic: Alcohol fermentation
Answer:
Answer is A on edg 2020
Explanation:
I took the test
Answer: Portions called introns are removed and the remaining exons are spliced together
Explanation:
The messenger RNA obtained after transcription is known as primary transcribed RNA or precursor RNA, and it has to undergo modifications before exerting its function. This is called RNA processing or maturation.
In the DNA sequence, the coding content of a gene is not continuously distributed along the gene, but has discontinuities, called introns, whose sequence does not encode proteins.The parts of the sequence that encode proteins are called exons. Through a process called splicing (which is one of the modification that are part of the RNA maduration), the introns are eliminated and the exons are joined forming a mature messenger RNA molecule that will be used for protein synthesis.
So the exons are part of the region of a gene that is not separated during the cutting and splicing process and is therefore kept in the mature messenger RNA. Each exon codes a specific portion of the entire protein, so that the set of exons forms the coding region of the gene.
B.) a characteristic that helps an organism find food
C.) a characteristic that evolves
D.) a characteristic that helps an organism avoid predators
The epiglottis is the structure that prevents food and liquids from entering the trachea. It is a flap of tissue that blocks the entrance to the trachea when you swallow. The larynx, glottis, and vestibular folds are part of the throat but do not prevent food and liquid from entering the trachea.
The structure that prevents food and liquids from entering the trachea is the epiglottis. The epiglottis is a flap of tissue that sits at the base of the tongue. When you swallow, this flap blocks the entrance to the trachea, directing food and liquids down the esophagus and into the stomach, rather than into your lungs. The larynx, glottis, and vestibular folds are also part of the throat anatomy, but they do not have the primary function of preventing food and liquid from entering the trachea.
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the answer is C. ALLANTOIS