Do you mean ion pumps in the membrane of cell?
If so, then ion pumps maintain an electrochemical gradient across the membrane.
Answer:
D. the genetic material of living organisms
Explanation:
Answer:
Pineal gland
Explanation:
The suprachiasmatic nucleus is the paired nucleus made of about 1000 neurons each in the hypothalamus. The suprachiasmatic nucleus is involved in maintaining the endogenous clock or the internal clock.
The suprachiasmatic nucleus controls the circadian rhythm by controlling the amount of melatonin. The melatonin is produced by the pineal gland from the serotonin and tryptophan precursors. The hypothalamus thus controls the amount of the melatonin by regulating the pineal gland.
Thus, Pineal gland is the correct answer.
Answer:
Most humans cannot see ultraviolet light because it has a smaller wavelength than violet light, putting it outside of the visible spectrum.

Answer:
The correct answer is - mitochondria.
Explanation:
The reaction the generates the energy by the oxidation and reduction reaction that takes place in the cell is cellular respiration which converts biochemical reaction from the nutrients to ATP which is the currency of the energy in living beings.
The cellular respiration has three-stage glycolysis ( takes place in the cytoplasm), Oxidative decarboxylation and TCA cycle. Oxidative decarboxylation and TCA cycle take place in the mitochondria which involves oxidation of pyruvate and reduction of NAD+ in this process.
Thus, the correct answer is - Mitochondria.