Question

explain the ways in which glucose is broken down in absence of oxygen

Answer 1

through anaerobic respiration which our muscles do when we run

Answer 2

1. the first step of breaking down glouse into pyruvate is same in all.

then, in absenc of oxygen pyruvate change into ethonol ,co2 ,energy .ex - yeast

also, when lack of oxygen in our muscle cells pyruvate change into lactic acid and enrgy

also, in presence in oxygen in human beings pyruvate change into co2, water and enrgy