Question

(1
4. In respiration, the first step is the break down of glucose, a six-carbon molecule into
a three-carbon molecule called pyruvate. This process takes place in......
a) Cytoplasm
b) Chloroplast
c) Outer membrane of mitochondria
d) Inner membrane of mitochondria​

Answer 1

Answer:

d

Explanation:

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Answer 2

a.Cytoplasm

Explanation:

Pyruvate is produced by glycolysis in the cytoplasm, but pyruvate oxidation takes place in the mitochondrial matrix (in eukaryotes). So, before the chemical reactions can begin, pyruvate must enter the mitochondrion, crossing its inner membrane and arriving at the matrix.