Question

in absence of oxygen in muscle cells the pyruvate molecule is broken to form-producing energy
a.ethanol
b.lactic acid
c.carbon dioxide
d.none of these​

Answer 1

Answer:

Anaerobic glycolysis serves as a means of energy production in cells that cannot produce adequate energy through oxidative phosphorylation. ... In cells lacking mitochondria altogether, pyruvate cannot undergo oxidative phosphorylation regardless of oxygen levels.

Explanation:

Hence the Answer is d. None of the Above.

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Answer 2

Answer:

Chromosomes are thread-like structures located inside the nucleus of animal and plant cells. Each chromosome is made of protein and a single molecule of deoxyribonucleic acid (DNA). ... Chromosomes are thread-like structures located inside the nucleus of animal and plant cells.