AP BIOLOGY

BIOCHEMISTRY

ENZYMES AND METABOLISM

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
The site of glycolisis
A
Ribosome
B
Chloroplast
C
Mitochondira
D
Cytoplasm
Explanation: 

Detailed explanation-1: -The first step in respiration is glycolysis that occurs in the cytoplasm of the living cell. Krebs’ cycle and ETS occurs in mitochondria of the cell. So, the answer is ‘Cytoplasm’.

Detailed explanation-2: -Glycolysis occurs in the cytoplasm where one 6 carbon molecule of glucose is oxidized to generate two 3 carbon molecules of pyruvate. The fate of pyruvate depends on the presence or absence of mitochondria and oxygen in the cells.

Detailed explanation-3: -No, glycolysis does not takes place in the mitochondria. It occurs in the cytosol.

There is 1 question to complete.