Guard cells. should be the right thing i have not learned that yet<span />
Answer: The steps may not always be completed in the same order. Following the four steps, the results of the experiment will either support the hypothesis or will not support the hypothesis. Scientists are always free to change or write a new hypothesis and start the four steps all over again.
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One gene for a particular trait is transcribed from DNA during transcription. The code for the gene is transferred by mRNA to the ribosome for protein production to begin. Proteins are constructed from a polypeptide chain of amino acids
The processes of transformation and transduction are important for bacteria. In transformation, the bacteria receives DNA from an extracellular donor and in transduction, DNA in a bacteriophage is taken up the by the bacteria.
Answer:
34
Explanation:
The electron transport chain of cellular respiration includes oxidation of NADH and FADH2. The electrons from these reducing powers are passed to the terminal electron acceptor via electron transport chain. During the transfer of electron via electron transport chain, the generated electrochemical gradient drives ATP synthesis.
The net yield of NADH from glycolysis and Kreb's cycle is 2 and 6 per glucose molecule respectively. In addition, decarboxylation of pyruvate also obtains 2 NADH per glucose. Kreb's cycle forms 2 FADH2 molecules during reduction reactions. In total, 10 NADH and 2 FADH2 are formed which then enter the electron transport chain and drive ATP synthesis.
One molecule of NADH generates the electrochemical gradient enough to drive the synthesis of 3 molecules of ATP while each FADH2 obtains 2 ATP molecules. Therefore, total 10 x 3 = 30 ATP molecules from oxidation of NADH and 2 x 2 = 4 ATP from oxidation of FADH2 are obtained.