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Yuki888 [10]
2 years ago
5

Question 1

Biology
1 answer:
lorasvet [3.4K]2 years ago
3 0
It can be possible because the mother can present B blood phenotype. This opens the possibility of she having an heterozygous genotype of I^b i or I^b I^b which are dominant over the genotype of the O type father.
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Among the products of glycolysis, which compounds contain energy that can be used by other biological reactions?a) ATP onlyb) py
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Answer: A (ATP only)

Explanation:

Both NADH and pyruvate are energy store. NADH and pyruvate can not directly be used to drive biological reaction.The metabolism of pyruvate releases energy in the form of ATP. NADH produces ATP through the electron transport chain (ETC). Adenosine Triphosphate (ATP) is referred to as the energy currency of the cell. ATP is used directly as energy to drive endergonic and exergonic biological reaction.

Answer is ATP only

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This reaction releases energy as heat explain whether the reaction is exothermic or endothermic and whether it obeys the law of
galina1969 [7]
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Aquatic biomes are divided into zones based on the amount of _____ they receive.
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if you are peforming this test on an uknown organism, why is it a good idea to run simultaneous tests on known phenylalanine-pos
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3 years ago
The Na⁺/Ca²⁺ exchanger, which couples the movement of Na⁺ down its electrochemical gradient with the movement of Ca²⁺ against it
ludmilkaskok [199]

Answer:

The Na⁺/Ca²⁺ exchanger, which couples the movement of Na⁺ down its electrochemical gradient with the movement of Ca²⁺ against its electrochemical gradient, is a(n) <u>symporter secondary active transport </u>because Ca²⁺ and Na⁺ move in different directions across the membrane.

Explanation:

The Na⁺/Ca²⁺ exchanger is a secondary active transport because it uses the energy of the Na⁺ that moves in favor of its electrochemical gradient to bring a Ca²⁺ ion against its electrochemical gradient inside the cell. This transport needs the help of a  symporter, which is a protein that moves two different ions in the same direction.

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