Answer:
The correct answer would be glycolysis, Krebs cycle, electron transport.
Cellular respiration refers to the set of the chemical reaction taking place in a cell in order to convert the chemical energy of the food into adenosine triphosphate (ATP).
These chemical reactions can be majorly divided into three stages:
1. Glycolysis: It takes place in the cytoplasm of the cell. It converts one molecule of glucose (6C) into two molecules of pyruvate (3C) with a net gain of 2 ATP molecules and 2 NADH molecules.
The pyruvate is then transported into the mitochondria where rest of the reactions take place.
2. The pyruvate is converted into acetyl Co-A which then enters the Krebs cycle. The cycle undergoes two round to utilize 2 acetyl Co-A and produces 4 CO₂. It also produces 6 NADH, 2 FADH₂, and 2 ATP.
3 All the NADH and FADH₂ produced undergo electron transport chain and produces ATP with the help of oxidative phosphorylation.
It’s not allowed in a diabetic diet
Answer:
This question is incomplete as it lacks options; the options are:
A) Bond X only
B) Bond W only
C) Bonds Y and Z at the same time
D) Bonds W and Z at the same time
The answer is C. Bond Y and Z at the same time
Explanation:
A DNA molecule is a double-stranded molecule made up of nucleotide units. According to this question, radiation can damage the nucleotides in the DNA molecule. However, the cell can repair this DNA molecule by removing the single damaged nucleotide and replacing it with an undamaged one.
In this case, the cytosine nucleotide is the damaged nucleotide. To repair this DNA in the image, the covalent bond holding the one nucleotide to another in one of the DNA strands must be broken.
The sugar-phosphate bonds as represented by letters Y and Z are the bonds that could be broken to replace the cytosine nucleotide by an undamaged one, without affecting the biological information coded to the DNA molecule. The bonds holding the neighboring nucleotides are also broken during the repair process. Note that, this form of repair is called BASE EXCISION REPAIR
The size of the primary transcript in the nucleus of the eukaryotic cell is <u>longer</u> than the size of the functional mRNA.
The primary mRNA transcript present in the nucleus is obtained from DNA template sequence transcription. The primary transcript is said to be inactive due to the presence of some non-functional regions (introns) within.
To obtain a functional mRNA from the primary transcript, introns are spliced or removed from the primary transcript with the help of RNA alternative splicing. This leads to the joining of the functional segments (exons) in the mRNA transcript. This joint segment of exons is the modified active form of primary transcript known as the functional mRNA, which is comparatively shorter in length.
Hence, we can conclude that the size of the functional mRNA is shorter than the primary transcript in a eukaryotic cell.
Learn more about post-transcriptional modification in eukaryotes here: -
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