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Peptide hormones are usually produced in the body ahead of the time when they will be required. They are usually synthesized in the inactive form and store in the secretory vesicles just under the plasma membrane. Stimulation of the signalling causes immediate release of these hormones into the surrounding medium or the blood. Thus, cellular response to a peptide hormone is always rapid compared to that of the steroid hormone.
Answer:
The air in the lungs has a higher concentration of oxygen than that of oxygen-depleted blood and a lower concentration of carbon dioxide. This concentration gradient allows for gas exchange during respiration.
Explanation:
Answer:
Oxygen
Explanation:
Kreb's cycle, also known as the Tricarboxylic acid cycle (TCA), is the second process of aerobic cellular respiration, after glycolysis. In the kreb's cycle, acetyl-CoA from pyruvic acid is oxidized to CO2 with the formation of 2 ATP molecules.
Krebs cycle occurs in the matrix of the mitochondria where chemical energy in form of ATP, NADH and FADH2 are produced. Krebs cycle is termed an AEROBIC process because it requires OXYGEN in order to occur.
Genetucally modified crops can contain DNA frkm two diffrent species
